JPH0269384A - Granular organic fertilizer composition - Google Patents

Abstract

PURPOSE:To allow granulation always under the same conditions and to obtain the org. fertilizer compsn. of a uniform grain size by sieving powder out of the dried and fermented org. fertilizer and coating the grain surface of the fertilizer with this powder in a stage of granulating the fertilizer. CONSTITUTION:This granular org. fertilizer is formed in the state of separating the individual grains by incorporating the powder with the dried and fermented org. fertilizer and coating the grain surface of the org. fertilizer with this powder in the stage of granulating the above-mentioned org. fertilizer. Powders of ores and sea weeds and other trace essential elements having proper complementary relations are selected as the powder for coating, by which the earth nutrition components not obtainable with the org. fertilizer alone are compounded and the fertilizer having the high merchandise additive value is obtd.

Description

[Detailed description of the invention] CA industry usage field) This invention relates to granular organic fertilizer compositions.

[Conventional technology]

Organic fertilizers such as fermented chicken manure contain nutrients for plants that are unevenly distributed to some extent.

Therefore, it is well known that fertilizers must be applied in a well-balanced manner along with fertilizers containing other nutritional elements.

In addition, this type of fermented organic fertilizer is not shipped in its fermented state, but is shipped after being adjusted to a certain particle size through a granulation process as a secondary process.

(Problems to be Solved by the Invention) In the granulation process, stirring blades, a vibrating sieve, etc. are used, and individual granules are transferred on the stirring blades and sieve, thereby making the particles have a constant particle size.

However, as a practical problem, materials that have been dried before granulation do not have mutual binding properties.
Difficult to granulate.

On the other hand, if the drying process had not progressed, it would be difficult to granulate it due to its own viscosity.

This adjustment is delicate, and while good results may be obtained with fertilizer from one loft, fertilizer from other lots may have problems with granulation or failure even under similar conditions.

In addition, as mentioned above, organic fertilizer itself depletes soil nutrients.

The present invention has been made based on the above viewpoints,
Firstly, the granulation process can always be performed under the same conditions to obtain an organic fertilizer composition with a uniform particle size. Secondly, in addition to the unique composition of organic fertilizers, as a second component, there is a complementary fertilizer component. The purpose is to enable the formulation of

[Means to solve the problem]

In order to achieve the above object, the present invention involves mixing powder in the process of sieving and granulating dry fermented organic fertilizer, coating the surface of the organic fertilizer granules with the powder, and separating the individual granules. It is characterized by being generated in a state.

[Effect]

By coating with the powder, the surfaces of the organic fertilizer particles are covered with a film made of the powder, making it difficult for them to stick together. Therefore, good granulation can be achieved under conditions where the moisture content is adjusted to a large extent. In addition, by selecting appropriate supplementary minerals and other trace essential elements for the powder to be coated, it is possible to incorporate soil nutrients that cannot be obtained from organic fertilizer alone, resulting in a fertilizer with high added value.

〔Example〕

Hereinafter, one embodiment of the present invention applied to granular fermented chicken manure will be described in detail with reference to the drawings.

FIG. 1 is a process explanatory diagram showing a method for manufacturing organic fertilizer to which the present invention is applied, and FIGS. 2 to 4 are explanatory diagrams of apparatus in each process.

In the figure, the present invention is as follows: (1) Organic fertilizer raw material consisting of poultry or livestock excrement lumps such as chicken manure is aerated by continuous stirring for 60 minutes.
A process in which useful rod groups are propagated by forced heating to ~80 degrees (Fig. 1 1): ■ A process in which the raw materials are stirred and aerated every few hours in a natural state after heating and left to mature (Fig. 1 3) )-〇 Step of crushing, piling up, and drying the obtained fermented organic fertilizer (Fig. 1, 5): ■ Step of sieving and granulating the dried fermented organic fertilizer.

The gist is to consist of:

In the step (2), the transported raw chicken manure and the dried chicken manure sieved in the previous manufacturing process have a moisture content of approximately 50 to 6.
At 0%, the mixture is placed in a heating tank (1) as shown in Figure 2, and at the same time, water and fermentation bacteria are added as needed, and the mixture is sufficiently agitated and aerated by stirring with an agitator (2). The entire heating tank (1) is externally heated by an external heating means such as a burner.

As a result, the input raw material is forcibly heated.

This temperature is maintained at 60 to 80 degrees, which is the breeding temperature for useful bacterium groups required in the early stages of biochemical reactions.

If the heating time is set to 1 to 3 hours, the conditions for sufficient propagation of useful rods will be satisfied and the biochemical reaction will be promoted.

It should be noted that once the peak of proliferation has been reached and the growth has declined, there is no point in continuing heating, and it will also affect productivity, so subsequent heating is stopped and the process proceeds to step (2) below.

In this process (■), first the intermediate product is placed in a heating tank (
Fermentation starts from 1)! The work of transferring to (3) is performed.

As shown in FIG. 3, the fermentation tank (3) is a field-shaped fermenter, and a traveling stirrer (4) runs inside the fermenter (4) at a required time to automatically stir the fermentation tank.

An appropriate amount of air is intermittently introduced into the intermediate raw material in a natural state by stirring every few hours, and fermentation is sustained by a microbial chain of soil microorganisms different from the rod group.

This time is approximately one day. Furthermore, if the external temperature is low, the fermentation state can be maintained by keeping it warm.

Through each of the above steps, the raw material chicken manure becomes an intermediate product that is almost in a desirable state as a product due to the maturation effect of fermentation.

Next, in the step (■), the raw materials after the completion of aging are transferred to a fermentation tank (
Remove from 3) and crush into appropriate chunks. After that, when they are piled up in a pile (5) shown in FIG. 4, anaerobic microorganisms become predominant inside, and they become further ripened. In addition to this action, the moisture contained inside also evaporates, promoting drying and solidification.

This step slows down the fermentation to maintain an appropriate degree of fermentation and ensure nutrients for soil microorganisms when applied to soil.

After completing each of the above steps, step (2) is added in order to ship the obtained fermented chicken manure as a product.

In this process, a well-known vibrating sieve machine (6) is used;
The lumps with 0 mesh or more are recycled to the step (2) above, and only the components with 20 mesh or less are passed through the granulator (7). In this case, by adding a small amount of water, the fermented chicken manure increases in viscosity, and this viscosity can be used to create conditions that facilitate granulation.

Therefore, the product subjected to the granulator (7) becomes granules with a predetermined particle size.

In addition, the presence of moisture can create anaerobic conditions inside the granules, which is effective in promoting the growth of many anaerobic microorganisms during sedimentation storage, which will be described later, and in promoting the humification of the fibers.

In addition, in the granulation step, powder is added and a protective coating layer (22) is laminated and adhered to the surface of the granules (20) as shown in FIG. 5 to prevent the granules (20) from agglomerating together.

In this step, the powder adheres to the surface of the granulated granules (20) and absorbs moisture on the surface, and the powder forms a hard and dense coating layer on the surface due to the absorbed moisture.

This coating layer (22) therefore ensures that the granules (20
) is compacted, and at the same time, the moisture exuding onto the surface of the coating layer (22) further adsorbs the powder supplied to the surface, forming a strong protective coating layer (22).

Therefore, the product after granulation is stored in a separated state without secondary agglomeration during storage.

As a powder, it contains other nutrients not included in fermented chicken manure,
If it is used as an auxiliary ingredient, the added value of the product as a fertilizer can be further increased.

Examples include mineral powders, dried seaweed powders, etc.

An example of mineral powder is the component that is lacking in fermented chicken manure out of the three nutrients that are essential for plants, or the essential trace metal elements that are required in addition to these three components, especially manganese, boron, zinc, copper, There are molybdenum, etc. These elements are required in extremely small amounts, but are absolutely necessary for the healthy growth of plants.

In addition, fermented chicken manure is particularly prized as a fertilizer for lawns, but it is also indispensable as fertilizer for large-scale lawns, especially golf courses. When using this fertilizer exclusively for lawns, it is given in powder form as a component containing a large amount of trace metal elements suitable for lawn fertilizer.

An example of this is dried seaweed powder.

As is well known, seaweed powder contains components such as iodine and magnesium that are suitable for making lawns greener, and also has good adhesion properties such as algin, and contains a large amount of polysaccharides that serve as soil conditioners after fertilization. Therefore, when seaweed powder is coated, it contains sufficient active ingredients suitable as fertilizer for lawns.

After granulation, the sieve is further passed through a sieve (8) to separate the ingredients from 20 to 3
It is divided into 0 mesh, 10 to 20 mesh, and 10 or more meshes, packed into bags for each division, further aged in storage, and then shipped.

After application, the protective layer of the fertilizer is eluted by the action of moisture in the soil or by rain, and then the soluble components of fermented chicken manure, which is the main ingredient, are eluted into the soil moisture, and by the action of bacteria, It decomposes, becomes effective, and continues to be effective over a long period of time as a slow-release fertilizer. At this time, if the protective coating layer eluted earlier is itself a component that can compensate for this component, conditions suitable for soil nutrition will be created, and plant growth will be promoted by the subsequent action of this component.

Coarse particle size products dissolve slowly into the soil and can be used as slow-release fertilizers.

In addition, products with fine particle sizes can be used as relatively fast-acting fertilizers.

〔effect〕

According to the present invention, as explained in detail in the embodiments above,
By coating with the powder, the surfaces of the organic fertilizer particles are covered with a film made of the powder, making it difficult for them to stick together. Therefore, good granulation can be achieved under conditions where the moisture content is adjusted to a large extent. In addition, by selecting appropriate supplementary minerals and other trace essential elements for the powder to be coated, it is possible to incorporate soil nutrients that cannot be obtained from organic fertilizer alone, resulting in a fertilizer with high added value.

[Brief explanation of the drawing]

Fig. 1 is a process explanatory diagram showing the manufacturing method applied to this invention, Figs. 2, 3, and 4 are explanatory diagrams of the equipment in each process, and Fig. 5 is a cross-sectional view of the obtained granular organic fertilizer. It is. (1... heating tank, (2)... stirrer, (3...
...Fermentation tank, (4)--Traveling stirrer, (5-
...Piling field, (6), (8)...Sieving machine, (7)...Pelletizer, (20...Granule (granular fermentation section R), (22)...Protection Coating layer. Patent applicant: Fuji Diamond Co., Ltd.

Claims (3)

[Claims] (1) In the process of sieving and granulating dry fermented organic fertilizer, powder is mixed in, and the surface of the organic fertilizer granules is coated with the powder, so that the individual granules are separated from each other. A granular organic fertilizer composition. (2) The granular organic fertilizer composition according to claim 1, wherein the powder is a mineral material with peelability. (3) The granular organic fertilizer composition according to claim 1, wherein the powder is dried seaweed powder.