CN111470902A - High-activity organic calcium boron liquid compound fertilizer and preparation method and application thereof - Google Patents

Abstract

The invention provides a highly active organic calcium boron liquid compound fertilizer and a preparation method and application thereof. The compound fertilizer comprises the following components in parts by weight: 44-55 parts of calcium fertilizer, 10-15 parts of boron fertilizer, 33-42 parts of organic matter, 0.1-1 part of plant growth regulator, 0.1-2 parts of surfactant, Solvent 0.1 to 2 parts, antifreeze 0.1 to 2 parts. In the present invention, calcium and boron are chelated together in a specific ratio in the presence of organic matter and the reaction temperature is 55 DEG C to 65 DEG C to prepare high-content organic calcium through high-activity organic carbon chelation technology. Boron suspension liquid compound fertilizer can quickly supplement calcium and boron nutrients for crops, can improve the utilization rate of nutrients, and has good fluidity. It is suitable for automatic fertilization operations with large areas, which can significantly improve fertilization efficiency and promote crop production and income. It has important application value in the field of crop planting.

Description

A kind of highly active organic calcium boron liquid compound fertilizer and its preparation method and application

technical field

The invention belongs to the technical field of fertilizer production. More specifically, it relates to a highly active organic calcium boron liquid compound fertilizer and its preparation method and application.

Background technology requirements

Calcium is one of the essential nutrient elements for crop growth and development, and plays an important role in the formation and maintenance of fruit quality, especially in the later stages of fruit development. Transportation has an important impact. Physiological disorders of many fruits, such as apple bitter pox, cherry cracking, peach softening, and pear black heart disease, are closely related to calcium deficiency. Calcium is not only an element necessary for the growth and development of fruit trees, but more importantly, it participates in the regulation of fruit tree growth and development as a second messenger of extracellular signals and intracellular physiological and biochemical reactions. Ca ²⁺ -CaM is involved in the regulation of flower bud differentiation, pollen germination, fruit ripening and stress resistance expression in fruit trees.

Although calcium is one of the most abundant elements in the soil, even plants growing on calcium-rich calcareous soils can still experience physiological diseases caused by calcium deficiency. Calcium deficiency in plants is mainly due to the fact that calcium is not easily absorbed by plants and is not easily moved after being absorbed, resulting in a large amount of calcium present in leaves and very little in fruits. Calcium can only be transferred upwards in one direction, and is affected by transpiration. Calcium in low-transpiration fruits often flows back to the branches and leaves, so the fruits are prone to calcium deficiency symptoms. In fruit tree cultivation, the fruit loss caused by calcium deficiency alone accounts for about 20% to 30% of the yield. Therefore, for crops that require more calcium, such as bananas, citrus, etc., which are prone to calcium deficiency, exogenous calcium must be applied, and the most effective method is to spray directly onto the leaves and fruit surfaces through foliar sprays, thereby shortening the movement distance of calcium elements.

Boron is one of the important trace elements. Boron participates in the operation and metabolism of sugar in plants and promotes the synthesis of sucrose; it promotes root development and has a greater impact on the formation of legume nodules; boron also has certain effects on protein synthesis. influences. Boron deficiency affects the tissues and organs of plants with vigorous metabolic activities. The shoots of boron-deficient plants obviously show discoloration and death of terminal buds and the youngest leaves, shortening of internodes, clumps or clusters of plants, and loss of intervein in old leaves. Green, deformed leaves, and can lead to split stems (celery) and irregular empty stems (cauliflower), bud drop, flower drop, and fruit drop are also typical symptoms of boron deficiency; water on leaves of vegetable crops (e.g. lettuce) Stained areas, burnt tips, and brown or black hearts; celery and beet storage root growing areas necrosis and lead to rotten hearts.

In addition, studies have shown that calcium and boron work together as structural components of the cell wall, and there is a mutual aid effect: in the case of boron deficiency, calcium can compensate for the physiological damage caused by boron deficiency to plants to a certain extent; in the case of sufficient boron, cells The absorption of calcium will be significantly reduced, on the contrary, calcium has little effect on boron, so the appropriate ratio of calcium to boron plays a key role in the good growth and development of crops.

In recent years, calcium and boron compound fertilizers have been more and more widely used in crops, especially in fruit trees, and are welcomed by farmers and friends. Regarding the fertilizer used in combination with calcium and boron, patent 201810060290.7 discloses a multi-nutrient solution involving biologically active organic calcium and boron; patent 201910021548.7 discloses a chitin calcium boron zinc spray fertilizer and its preparation method, the active substances are bean dregs, bone meal, Chitin, but the existing calcium and boron fertilizers have the problems of low calcium and boron content, low calcium and boron absorption efficiency, and unstable compound fertilizer system.

Therefore, it is imperative to find a calcium-boron compound fertilizer that can promote the absorption of calcium and boron by crops, improve the utilization rate of calcium and boron in fertilizers, and help increase crop production and income.

SUMMARY OF THE INVENTION

The present invention aims to overcome the above-mentioned defects of the prior art, and provides a highly active organic calcium boron suspended liquid compound fertilizer.

Another object of the present invention is to provide the preparation method of the above-mentioned compound fertilizer.

Another object of the present invention is to provide the application of the above-mentioned compound fertilizer in crop planting.

The above-mentioned purpose of the present invention is achieved through the following technical solutions:

The invention provides a highly active organic calcium-boron suspension liquid compound fertilizer, comprising the following components in parts by weight: 44-55 parts of calcium fertilizer, 10-15 parts of boron fertilizer, 33-42 parts of organic matter, and 0.1-15 parts of plant growth regulator. 1 part, 0.1-2 parts of surfactant, 0.1-2 parts of cosolvent, 0.1-2 parts of antifreeze.

In the present invention, calcium and boron are chelated together in a specific ratio through high-activity organic carbon chelation technology, and the obtained calcium-boron liquid compound fertilizer has high content of active components and contains nutrients such as calcium, boron, organic matter, nitrogen, etc. These nutrients coexist organically and stably in the same liquid phase, which can quickly supplement calcium and boron nutrients for crops, improve the utilization rate of nutrients, and have good fluidity. It is suitable for automatic fertilization operations with large areas. Significantly improve fertilization efficiency.

Preferably, the calcium fertilizer is one or more of calcium nitrate, calcium magnesium nitrate, calcium chloride, calcium ammonium nitrate, calcium lactate or calcium sodium EDTA.

Preferably, the boron fertilizer is one or more of sodium octaborate tetrahydrate, polymeric sodium borate, borax, boric acid or liquid boron.

Preferably, the organic matter is one or more of sugarcane molasses, alcohol waste liquid, yeast factory waste liquid, amino acid waste liquid, mannitol, sorbitol or monosodium glutamate leftovers.

In the present invention, a clear liquid fertilizer is prepared by using auxiliary agents such as cosolvents, surfactants, antifreeze agents, etc., and the high active organic carbon chelation technology is used. , chelating calcium and boron together in a specific ratio, the formed organic calcium boron liquid compound fertilizer has high total nutrient content, stable physical and chemical properties, no crystallization, precipitation, stratification and other phenomena under high temperature, low temperature and normal temperature conditions It has good fluidity and spreadability, which is conducive to improving the utilization rate of nutrients, and can quickly supplement calcium and boron nutrition for crops, and promote crop production and income. And it is suitable for automatic fertilization operations with a large area to improve fertilization efficiency.

Further preferably, the compound fertilizer comprises the following components in parts by weight: 50-55 parts of calcium fertilizer, 10-15 parts of boron fertilizer, 33.8-42 parts of organic matter, 0.1-1 part of plant growth regulator, and 0.5 part of surfactant. ~ 2 parts, cosolvent 0.5-2 parts, antifreeze 1-2 parts.

Most preferably, the compound fertilizer comprises the following components by weight: 55 parts of calcium fertilizer, 15 parts of boron fertilizer, 42 parts of organic matter, 1 part of plant growth regulator, 2 parts of surfactant, 2 parts of cosolvent, antifreeze 2 servings.

Preferably, the plant growth regulator is one or more of aminosalt, 2,4-D sodium salt or sodium nitrophenolate.

More preferably, the surfactant is sodium dodecylbenzenesulfonate, sodium alkylarylsulfonate, sodium dialkylbenzenesulfonate, sodium hydroxyalkylsulfonate, nonylphenol polyoxyethylene ether, One or more of sodium lignosulfonate or laurate propylamine oxide.

Preferably, the cosolvent is one or more of citric acid, glycerol or sodium salicylate.

Preferably, the antifreeze agent is methanol, ethanol, isopropanol, ethylene glycol, propylene glycol, diethylene glycol, ethylene glycol butyl ether, propylene glycol butyl ether, ethylene glycol butyl ether acetate, dichloromethane, 1, One or more of 1-dichloroethane, 1,2-dichloroethane, dimethyl sulfoxide, formamide, calcium chloride or sodium acetate.

As a kind of preferably, the preparation method of above-mentioned compound fertilizer comprises the steps:

S1. Add a cosolvent to 50% to 75% of the organic matter, and stir to obtain A liquid;

S2. Pulverize the calcium fertilizer through a 100-200 mesh sieve;

S3. add the calcium fertilizer that step S2 obtains to A liquid, stir 30～40min at 55～65 ℃ to obtain black liquid;

S4. Add boron fertilizer to S3, stir and dissolve fully to form B liquid;

S5. The plant growth regulator, the antifreeze agent and the remaining organic matter are mixed and stirred evenly to form C liquid;

S6. Pour liquid C into liquid B and stir to form liquid D;

S7. Add the surfactant to the liquid D, stir evenly and adjust the pH value to 5.0-6.0 to obtain a highly active organic calcium boron suspended liquid compound fertilizer.

In the present invention, calcium and boron are chelated together in a specific ratio through a process of a specific sequence and specific reaction conditions and a high-activity organic carbon chelating technology, so that nutrients such as calcium, boron and organic matter coexist organically and stably in the same liquid. phase, improve the utilization rate of calcium and boron.

Preferably, the stirring time in step S1 is 10-20 min.

Preferably, the pulverization in step S2 is to pulverize by an airflow pulverizer for 20-30 minutes.

Preferably, the stirring time in step S4 is 30-45 min.

Preferably, the stirring time of step S5 is 10-20 min.

Preferably, the stirring time of step S6 is 10-20 min.

Preferably, the stirring time in step S7 is 10-20 min.

The above-mentioned high-activity organic calcium boron liquid compound fertilizer of the present invention can be added with different types and concentrations of growth regulators according to the needs of different growth stages of crops; it can also be mixed with organic raw materials such as fulvic acid, black humic acid or palm humic acid to be used. Improve the utilization rate of fertilizer nutrients.

The present invention also provides the application of the above-mentioned compound fertilizer in crop planting.

Preferably, the crops can be fertilized by drenching, spraying or drip irrigation.

As a preferred drench application method, the compound fertilizer of the present invention can be diluted 200-300 times in the seedling stage of the crop, 100-200 times in other growth stages, and directly drenched on the roots of the crops at a time interval of 10-15 days. Appropriately increase the number of applications, and fruit trees can appropriately increase the amount of application.

As a preferred spraying method, the compound fertilizer of the present invention can be diluted 800 to 1000 times for vegetables and field crops, and 500 to 800 times for fruit trees, and sprayed directly on the front and back of the leaves until the leaves just drip.

As a preferred drip irrigation application method, the compound fertilizer of the present invention can be diluted 200-300 times in the seedling stage of the crop, 100-200 times in the middle and later stages, and can be dripped once every 7-10 days. For crops, the fertilization time should be controlled within 30 minutes, and for crops with deep roots, the fertilization time should be controlled within 1 to 1.5 hours.

The present invention has the following beneficial effects:

1. The active ingredient content in the highly active organic calcium boron liquid compound fertilizer of the present invention is high, and contains nutrients such as calcium, boron, organic matter, and a large amount of element nitrogen. Under the condition of 55℃～65℃, calcium and boron are chelated together in a specific ratio, and these nutrients can coexist organically and stably in the same liquid phase to prepare a high content of organic calcium and boron suspension liquid The compound fertilizer system can quickly supplement calcium and boron nutrients for crops, improve the utilization rate of nutrients such as calcium and boron, and improve the yield and quality of crops.

2. The high-activity organic calcium boron liquid compound fertilizer of the present invention has high total nutrient content, stable physical and chemical properties, no crystallization, precipitation, stratification and other phenomena under high temperature, low temperature and normal temperature conditions; good fluidity, can be sprayed on foliage It can also be used in sprinkler and drip irrigation systems. It is easy to use and has the advantages of saving time, labor, fertilizer, and fast fertilizer efficiency. It is suitable for automatic fertilization operations with large areas and can significantly improve fertilization efficiency.

Detailed ways

The present invention is further described below in conjunction with specific embodiments, but the embodiments do not limit the present invention in any form.

Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the technical field.

Embodiment 1 A kind of highly active organic calcium boron suspension liquid compound fertilizer

1. The highly active organic calcium boron liquid compound fertilizer described in this embodiment contains the following components in parts by weight:

2. Preparation method

S1. put 2/3 of the yeast factory waste liquid into the reactor, add citric acid, stir while adding, and stir for 15min to obtain A liquid;

S2. the calcium nitrate and calcium chloride of the formula ratio are pulverized by the jet mill, and the pulverization time is 30min, and the obtained powder passes through a 200-mesh sieve;

S3. respectively add calcium nitrate and calcium chloride to the A liquid, stir while adding, stir for 40min, keep the reaction temperature at 55 ℃, and finally form a black liquid;

S4. Slowly add boric acid to S3, stir while adding, stir for 40min, and form B solution after fully dissolving;

S5. amine fresh fat, ethanol and 1/3 of the yeast factory waste liquid are evenly mixed together, and stirred for 15min to form C liquid;

S6. Slowly pour liquid C into liquid B, add and stir, stir for 15 min, and form liquid D after mixing evenly;

S7. Add sodium dodecyl benzene sulfonate to liquid D, stir for 10min, stir evenly, adjust the pH value to 5.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain a high Active organic calcium boron liquid compound fertilizer.

Embodiment 2 A kind of highly active organic calcium boron suspension liquid compound fertilizer

1. The highly active organic calcium boron liquid compound fertilizer described in this embodiment contains the following components in parts by weight:

2. Preparation method

S1. Put 2/3 of the sugarcane molasses into a reaction kettle, add glycerin, stir while adding, and stir for 15min to obtain A liquid;

S2. the calcium nitrate and calcium chloride of the formula ratio are pulverized by the jet mill, and the pulverization time is 30min, and the obtained powder passes through a 200-mesh sieve;

S3. respectively add calcium nitrate and calcium chloride to the A liquid, stir while adding, stir for 40min, keep the reaction temperature at 55 ℃, and finally form a black liquid;

S4. Slowly add polymeric sodium borate to S3, stir while adding, stir for 35min, and form B solution after fully dissolving;

S5. 2,4-D sodium salt, methanol and 1/3 cane molasses are evenly mixed together, and stirred for 10min to form C liquid;

S6. Slowly pour liquid C into liquid B, add and stir, stir for 15 min, and form liquid D after mixing evenly;

S7. Add nonylphenol polyoxyethylene ether into D solution, stir for 10min, stir evenly, adjust the pH value to 5.5, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain high activity Organic calcium boron liquid compound fertilizer.

Embodiment 3 A kind of highly active organic calcium boron suspension liquid compound fertilizer

1. The highly active organic calcium boron liquid compound fertilizer described in this embodiment contains the following components in parts by weight:

2. Preparation method

S1. put 1/2 of the alcohol waste liquid into the reactor, add sodium salicylate, stir while adding, and stir for 10min to obtain A liquid;

S2. the calcium magnesium nitrate and calcium chloride of the formula ratio are pulverized by the jet mill, and the pulverization time is 30min, and the powder obtained passes through a 200-mesh sieve;

S3. add calcium magnesium nitrate and calcium chloride to liquid A, stir while adding, stir for 40min, keep the reaction temperature at 55°C, and finally form a black liquid;

S4. Slowly add sodium polyborate to S3, stir while adding, stir for 35min, and form B solution after fully dissolving;

S5. Sodium nitrophenolate, ethylene glycol and 1/2 of the alcohol waste liquid are evenly mixed together, and stirred for 15min to form C liquid;

S6. Slowly pour liquid C into liquid B, add and stir, stir for 15 min, and form liquid D after mixing evenly;

S7. Add sodium lignosulfonate to solution D, stir for 20min, stir evenly, adjust pH value to 6.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain high activity organic calcium Boron liquid compound fertilizer.

Embodiment 4 A kind of highly active organic calcium boron suspension liquid compound fertilizer

1. The highly active organic calcium boron liquid compound fertilizer described in this embodiment contains the following components in parts by weight:

2. Preparation method

S1. Put 3/4 of the leftovers of monosodium glutamate into the reactor, add glycerin, stir while adding, and stir for 15min to obtain A liquid;

S2. Calcium nitrate and calcium chloride of formula proportion are pulverized by jet mill, and the pulverization time is 25min, and the obtained powder passes through 200 mesh sieves;

S3. respectively add calcium nitrate and calcium chloride to the A liquid, stir while adding, stir for 40min, keep the reaction temperature at 55 ℃, and finally form a black liquid;

S4. Slowly add sodium octaborate tetrahydrate in S3, stir while adding, stir for 40min, and form B solution after fully dissolving;

S5. 2,4-D sodium salt, ethylene glycol and 1/4 of monosodium glutamate leftovers are evenly mixed together, and stirred for 15min to form C liquid;

S6. Slowly pour C liquid into B liquid, add and stir, stir for 10 min, and form D liquid after mixing evenly;

S7. Add nonylphenol polyoxyethylene ether into D solution, stir for 15 minutes, stir evenly, adjust the pH value to 5.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain high activity Organic calcium boron liquid compound fertilizer.

Embodiment 5 A kind of highly active organic calcium boron suspension liquid compound fertilizer

1. The highly active organic calcium boron liquid compound fertilizer described in this embodiment contains the following components in parts by weight:

2. Preparation method

S1. put 2/3 of the sorbitol into the reactor, add citric acid, stir while adding, and stir for 20min to obtain A liquid;

S2. the calcium nitrate and calcium chloride of the formula ratio are pulverized by the jet mill, and the pulverization time is 30min, and the obtained powder passes through a 100-mesh sieve;

S3. respectively add calcium nitrate and calcium chloride to the A liquid, stir while adding, stir for 30min, keep the reaction temperature at 65 ℃, and finally form a black liquid;

S4. Slowly add boric acid to S3, stir while adding, stir for 45min, and form B solution after fully dissolving;

S5. Amine fresh fat, ethanol and 1/3 of sorbitol are evenly mixed together, and stirred for 20min to form C liquid;

S6. Slowly pour liquid C into liquid B, add and stir, stir for 15 min, and form liquid D after mixing evenly;

S7. Add sodium alkyl aryl sulfonate to solution D, stir for 10min, stir evenly, adjust pH to 6.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain high activity Organic calcium boron liquid compound fertilizer.

Embodiment 6 A kind of highly active organic calcium boron suspension liquid compound fertilizer

1. The highly active organic calcium boron liquid compound fertilizer described in this embodiment contains the following components in parts by weight:

2. Preparation method

S1. put 2/3 of the amino acid waste liquid into the reactor, add sodium salicylate, stir while adding, and stir for 15min to obtain A liquid;

S2. the calcium lactate, calcium nitrate and calcium chloride of the formula ratio are pulverized by the jet mill, and the pulverization time is 25min, and the obtained powder passes through a 100-mesh sieve;

S3. respectively add calcium sodium EDTA and pulverized calcium lactate, calcium nitrate, calcium chloride in liquid A, stir while adding, stir for 40min, keep the reaction temperature at 55 ℃, and finally form a black liquid;

S4. Slowly add liquid boron to S3, stir while adding, stir for 30min, and form B solution after fully dissolving;

S5. Sodium nitrophenolate, dichloromethane and 1/3 of the amino acid waste liquid are evenly mixed together, and stirred for 20min to form C liquid;

S6. Slowly pour C liquid into B liquid, add and stir, stir for 20min, and form D liquid after mixing evenly;

S7. Add lauric acid propyl amine oxide into D solution, stir for 20min, stir evenly, adjust the pH value to 6.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain high activity Organic calcium boron liquid compound fertilizer.

Embodiment 7 A kind of highly active organic calcium boron suspension liquid compound fertilizer

1. The highly active organic calcium boron liquid compound fertilizer described in this embodiment contains the following components in parts by weight:

2. Preparation method

S1. put 2/3 of the mannitol into the reactor, add glycerin, stir while adding, and stir for 20min to obtain A liquid;

S2. the calcium nitrate and calcium ammonium nitrate of the formula ratio are pulverized by a jet mill, and the pulverization time is 30min, and the obtained powder passes through a 200-mesh sieve;

S3. respectively add calcium nitrate and calcium ammonium nitrate to liquid A, stir while adding, stir for 40min, keep the reaction temperature at 55°C, and finally form a black liquid;

S4. Slowly add polymeric sodium borate to S3, stir while adding, stir for 45min, and form B solution after fully dissolving;

S5. Amine fresh fat, propylene glycol butyl ether and 1/3 of mannitol are evenly mixed together, and stirred for 20min to form C liquid;

S6. Slowly pour C liquid into B liquid, add and stir, stir for 20min, and form D liquid after mixing evenly;

S7. Add sodium lignosulfonate to solution D, stir for 20min, stir evenly, adjust pH value to 6.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain high activity organic calcium Boron liquid compound fertilizer.

Embodiment 8 Performance test of highly active organic calcium boron suspension liquid compound fertilizer

The fertilizer-related indexes prepared in Examples 1-5 were measured using the Agricultural Industry Standard of the People's Republic of China (NY 2266-2012) and are shown in Table 1.

Table 1 Quality index of highly active organic calcium boron suspended liquid compound fertilizer

It can be known from the experimental results in Table 1: in the organic suspended liquid fertilizer provided by the present invention, the organic matter is ≥ 135g/L, Ca ≥ 120g/L, B ≥ 20g/L, N ≥ 30g/L, and the nutrient content can reach the People's Republic of China. The agricultural industry standard (NY2266-2012) "middle element water-soluble fertilizer" liquid product quality index also meets the enterprise standard "organic water-soluble fertilizer" liquid product quality index. good convenience.

In the present invention, a clear liquid fertilizer is prepared by using auxiliary agents such as cosolvents, surfactants, antifreeze agents, etc., and through a specific chelating process, a specific addition sequence and a reaction temperature, calcium, boron, organic matter, calcium, boron, organic matter, etc. Nutrients such as a large number of elements nitrogen are organically and stably integrated in the same liquid phase, and the formed organic calcium boron liquid compound fertilizer has high total nutrient content, stable physical and chemical properties, and no crystallization, precipitation, separation under high temperature, low temperature and normal temperature conditions. It has good fluidity and spreadability, which is conducive to improving the utilization rate of nutrients, and is suitable for automatic fertilization operations with large areas to improve fertilization efficiency.

Example 9 Application test of highly active organic calcium boron suspension liquid compound fertilizer

(1) Spray test

Test location: Hongxing Village, Liutang Village Committee, Jiangchuan Town, Fengkai County, Zhaoqing City, Guangdong Province

Test time: July 2019 - December 2016

Test Crop: Tomato

Test soil: loam

Test scheme: In this test, two treatments are selected: the high-activity organic calcium boron liquid compound fertilizer sample of the present invention and the comparative example.

The comparative example adopts the liquid fertilizer (medium element water-soluble fertilizer) produced by Guangdong Lvxing Biotechnology Co., Ltd., Ca+Mg≥100g/L.

Treatment 1 adopts the highly active organic calcium boron liquid compound fertilizer prepared in Example 1 of the present invention;

Treatment 2 adopts the highly active organic calcium boron liquid compound fertilizer prepared in Example 2 of the present invention;

Treatment 3 adopts the highly active organic calcium boron liquid compound fertilizer prepared in Example 3 of the present invention;

Treatment 4 adopts the highly active organic calcium boron liquid compound fertilizer prepared in Example 4 of the present invention;

Treatment 5 adopts the highly active organic calcium boron liquid compound fertilizer prepared in Example 5 of the present invention;

Treatment 6 adopts the highly active organic calcium boron liquid compound fertilizer prepared in Example 6 of the present invention;

Treatment 7 adopts the highly active organic calcium boron liquid compound fertilizer prepared in Example 7 of the present invention.

Planted on July 10, 2019, transplanted on August 13, 2019, 3,000 plants were planted per mu. The harvest started on November 3rd, and the harvest was completed on December 12th, and the experiment ended. The liquid fertilizers for each treatment were sprayed once on August 23, 2019, September 3, 2019, September 13, 2019, September 23, 2019, and October 3, 2019, respectively, with a concentration of 200 times. The comparative example was sprayed with the same spray concentration and time.

(2) The test results are shown in Table 2.

Table 2 liquid fertilizer of the present invention and commercially available liquid fertilizer comparison result

The results of table 2 show that, compared with commercially available liquid fertilizers, drenching and applying highly active organic calcium boron liquid compound fertilizers of the present invention all increased the output of tomato to a certain extent, and compared with commercially available liquid fertilizers, single (mu) yield increased 71.3-185.7kg. Among them, the effect of increasing the yield of treatment 7 is remarkable. Compared with the comparative example, the yield per (mu) plant increases by 185.7 kg, and the yield increase rate is 6.78%; at the same time, spraying the high-activity organic calcium boron liquid compound fertilizer of the present invention significantly improves the single (mu) yield of tomato. The number of results per plant in treatment 7 was 17.65% higher than that of the control. The number of results per plant in treatments 1, 2, 3, 4, 5, 6, and 7 was 9.60%, 12.07%, 9.29%, 17.03%, 16.10%, 6.81%, and 17.65% higher than the comparative example, respectively; The highly active organic calcium boron liquid compound fertilizer significantly increased the soluble solid content of tomato, and the soluble solid content of treatment 7 was 16.47% higher than that of the comparative example. The soluble solids of treatments 1, 2, 3, 4, 5, 6, and 7 were 8.24%, 11.76%, 7.06%, 15.29%, 14.12%, 7.06%, and 16.47% higher than the control, respectively.

It can be seen that the highly active organic calcium boron liquid compound fertilizer provided by the present invention promotes the growth of tomato plants and the absorption of mineral nutrients, improves the fruit setting rate and the number of fruits, improves the soluble solids of tomato, and effectively prevents calcium deficiency and boron deficiency. Deficiency of nutrients improves the yield and quality of tomatoes. In addition, the liquid compound fertilizer provided by the present invention can adjust the physical and chemical properties of soil and promote better growth of crop roots.

Comparative Examples 1 to 6

1. The high-activity organic calcium boron liquid compound fertilizers of Comparative Examples 1 to 6 are prepared according to the preparation method of Example 7, as shown in Table 3.

table 3

2. The compound fertilizer application test of Comparative Examples 1 to 6 is the same as that of Example 9, and the test results are shown in Table 4.

Table 4

Comparative Example 7

1. The consumption of the highly active organic calcium boron liquid compound fertilizer of this comparative example is the same as in Example 7.

2. Preparation method

S1. put mannitol into the reactor, add glycerin, stir while adding, and stir for 20min to obtain A liquid;

S2. the calcium nitrate and calcium ammonium nitrate of the formula ratio are pulverized by a jet mill, and the pulverization time is 30min, and the obtained powder passes through a 200-mesh sieve;

S3. respectively add calcium nitrate and calcium ammonium nitrate to liquid A, stir while adding, stir for 40min, keep the reaction temperature at 55°C, and finally form a black liquid;

S4. Slowly add polymeric sodium borate to S3, stir while adding, stir for 45min, and form B solution after fully dissolving;

S5. Amine fresh fat and propylene glycol butyl ether are evenly mixed together, and stirred for 20min to form C liquid;

S6. Slowly pour C liquid into B liquid, add and stir, stir for 20min, and form D liquid after mixing evenly;

S7. Add sodium lignosulfonate to liquid D, stir for 20min, stir evenly, adjust pH value to 6.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain organic calcium boron liquid Compound fertilizer.

Comparative Example 8

1. The highly active organic calcium boron liquid compound fertilizer of this comparative example is the same as in Example 7.

2. Preparation method

S1. the calcium nitrate and calcium ammonium nitrate of the formula proportioning are pulverized by the jet mill, and the pulverization time is 30min, and the powder obtained passes through a 200-mesh sieve;

S2. put calcium nitrate and calcium ammonium nitrate into the reaction kettle, stir while adding, stir for 40min, keep the reaction temperature at 55°C, and finally form a black liquid;

S3. add mannitol and glycerol in S2, stir while adding, stir 20min, obtain A liquid;

S4. Slowly add polymeric sodium borate to solution A, stir while adding, and stir for 45 min, and form solution B after fully dissolving;

S5. Amine fresh fat and propylene glycol butyl ether are evenly mixed together, and stirred for 20min to form C liquid;

S6. Slowly pour C liquid into B liquid, add and stir, stir for 20min, and form D liquid after mixing evenly;

S7. Add sodium lignosulfonate to liquid D, stir for 20min, stir evenly, adjust pH value to 6.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain organic calcium boron liquid Compound fertilizer.

Comparative Example 9

1. The highly active organic calcium boron liquid compound fertilizer of this comparative example is the same as in Example 7.

2. Preparation method

S1. Add amine fresh tallow and propylene glycol butyl ether into the reactor respectively, stir while adding, evenly mix together, and stir for 20min to form A liquid;

S2. Calcium nitrate and calcium ammonium nitrate are pulverized by a jet mill, and the pulverization time is 30min, and the obtained powder passes through a 200-mesh sieve;

S3. If calcium nitrate and calcium ammonium nitrate are added to liquid A, stir while adding, stir for 40min, keep the reaction temperature at 55°C, and finally form a black liquid;

S4. Slowly add sodium polymerized borate to liquid S3, stir while adding, stir for 45min, fully dissolve

After the formation of B solution;

S5. mannitol and glycerol are evenly mixed together, stirred for 20min, to obtain C liquid;

S6. Slowly pour C liquid into B liquid, add and stir, stir for 20min, and form D liquid after mixing evenly;

S7. Add sodium lignosulfonate to liquid D, stir for 20min, stir evenly, adjust pH value to 6.0, after passing the quality inspection, seal the finished product into a 25L liquid storage tank to obtain organic calcium boron liquid Compound fertilizer.

3. The compound fertilizer application test of Comparative Examples 7-9 is the same as that of Example 9, and the test results are shown in Table 5.

table 5

It can be seen that through the present invention, by using auxiliary agents such as cosolvents, surfactants, antifreezes, etc. to prepare clear liquid fertilizers, through a specific chelation process and a specific addition sequence, calcium, boron, organic matter, and macroelements can be effectively mixed. Nitrogen and other nutrients are organically and stably integrated in the same liquid phase, and the formed organic calcium boron liquid compound fertilizer is more conducive to improving the utilization rate of nutrients and increasing the yield of tomato.

The above-mentioned embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, The simplification should be equivalent replacement manners, which are all included in the protection scope of the present invention.

Claims (10)

1. The high-activity organic calcium boron suspension liquid fertilizer is characterized by comprising the following components in parts by weight: 44-55 parts of calcium fertilizer, 10-15 parts of boron fertilizer, 33-42 parts of organic matter, 0.1-1 part of plant growth regulator, 0.1-2 parts of surfactant, 0.1-2 parts of cosolvent and 0.1-2 parts of antifreezing agent.

2. The liquid fertilizer as claimed in claim 1, wherein the calcium fertilizer is one or more of calcium nitrate, calcium magnesium nitrate, calcium chloride, calcium ammonium nitrate, calcium lactate or calcium sodium ethylene diamine tetraacetate.

3. The liquid fertilizer of claim 1, wherein the boric fertilizer is one or more of sodium octaborate tetrahydrate, sodium polyborate, borax, boric acid, or liquid boron.

4. The liquid fertilizer as claimed in claim 1, wherein the organic matter is one or more of cane molasses, alcohol waste liquid, yeast factory waste liquid, amino acid waste liquid, mannitol, sorbitol or monosodium glutamate leftovers.

5. The liquid fertilizer as claimed in claim 1, which comprises the following components in parts by weight: 50-55 parts of calcium fertilizer, 10-15 parts of boron fertilizer, 33.8-42 parts of organic matter, 0.1-1 part of plant growth regulator, 0.5-2 parts of surfactant, 0.5-2 parts of cosolvent and 1-2 parts of antifreezing agent.

6. The liquid fertilizer as claimed in any one of claims 1 to 5, wherein the surfactant is one or more of sodium dodecyl benzene sulfonate, sodium alkylaryl sulfonate, sodium dialkyl benzene sulfonate, sodium hydroxy alkyl sulfonate, polyoxyethylene nonyl phenyl ether, sodium lignin sulfonate or amine lauramide propyl oxide.

7. The liquid fertilizer as claimed in any one of claims 1 to 5, wherein the cosolvent is one or more of citric acid, glycerol or sodium salicylate.

8. The liquid fertilizer as claimed in any one of claims 1 to 5, wherein the antifreeze is one or more selected from methanol, ethanol, isopropanol, ethylene glycol, propylene glycol, diethylene glycol, butyl glycol ether, butyl propylene glycol ether, butyl ethylene glycol ether acetate, methylene chloride, 1-dichloroethane, 1, 2-dichloroethane, dimethyl sulfoxide, formamide, calcium chloride and sodium acetate.

9. A method for preparing a liquid fertilizer as claimed in any one of claims 1 to 8, characterized by comprising the steps of:

s1, adding a cosolvent into 50-75% of organic matters, and uniformly stirring to obtain solution A;

s2, crushing the calcium fertilizer and sieving the crushed calcium fertilizer with a 100-200-mesh sieve;

s3, adding the calcium fertilizer obtained in the step S2 into the liquid A, and stirring for 30-40 min at 55-65 ℃ to obtain black liquid;

s4, adding a boron fertilizer into the S3, and stirring and fully dissolving to form a B liquid;

s5, mixing and stirring the plant growth regulator, the antifreezing agent and the rest organic matters uniformly to form a liquid C;

s6, pouring the solution C into the solution B, and uniformly stirring to form a solution D;

and S7, adding a surfactant into the solution D, uniformly stirring, and adjusting the pH value to 5.0-6.0 to obtain the high-activity organic calcium-boron compound fertilizer.

10. Use of the liquid fertilizer according to any one of claims 1 to 9 for crop cultivation.