CS272801B1 - Turf-base organo-mineral fertilizer - Google Patents

Abstract

The invention concerns a fertiliser especially suitable for gardening and forest nurseries. It consists of ammonium hydrogen carbonate in a quantity of 0.5 to 13.9 % by weight, and turf with a humidity of 60 to 80 % containing 0.28 to l.5 % nitrogen, where the ratio of the available ammoniac form to the bound form is 1 : 1 to 1 : 4 and pH/H2O 4 to 9.5 in a quantity of 86.1 to 99.5 % by weight and possibly tree bark ash or wood ash up to 1.1 % by weight, zeolite up to 2.2 % by weight, superphosphate up to 10 % by weight, concentrate of boron-molybdenum containing boron to 4 % and molybdenum to 1 to 0.6 % by weight. The advantage of the fertiliser is the negligible content of the nitrate form of nitrogen and increased amount of the ammoniac form of nitrogen.

Description

The invention relates to an organomineral or fertilizer formed on the basis of ammonized peat, in which nitrogen is present both in accessible ammoniacal form and also in a form from which it is only slowly released for plant nutrition including biologically active humates in physiologically effective concentration.

The known organomineral fertilizers based on peat, lignite and the like are very demanding in terms of production and, as a rule, also exhibit a higher content of nitrate form of nitrogen, which is undesirable in terms of production quality and environmental ecology. These fertilizers based on peat and other organic substances, which contain other macro and microelements besides nitrogen, are often devoid of mixtures formed by the addition of inorganic salts in which there is little respect for the antagonism of the elements as well as their permissible concentrations for plant nutrition with respect to concentrations elements already in the soil. Many peat-based fertilizers with regard to pH have only a limited applicability and in order to extend their application to soils of different pH, the number of ingredients must be extended to other substances, especially buffers. The number and quantity of added, industrially produced ingredients also increases the price of the final product,

The fertilizer according to the invention, when compared with hitherto known fertilizers containing peat, removes or at least minimizes the above-mentioned drawbacks, and my advantage is, in particular, that it contains an ammoniacal and readily available plant nutrient form of nitrogen. Due to the hydrolysis due to the effects of ammonium bicarbonate, the fertilizer contains structurally altered some organic substances, which are components of the original peat. In these newly formed organic substances, the ammoniacal form of nitrogen is bound in a more or less accessible form. Of the organic compounds originally contained in the peat, this is particularly true of humic and slightly hydrolyzing compounds. To a lesser extent, also water-soluble and poorly hydrolyzing and non-hydrolyzing compounds. The most important substances in the peat organomineral fertilizer according to the invention are biologically active humates. A great advantage of the fertilizer according to the invention is also the fact that it contains the undesired nitrate form of nitrogen only in trace amounts, for example at 80% by weight of peat moisture. this quantity shall be not more than 0,8 kg ha ' ¹ N-NO2. An increase in the number of macro and microelements contained therein has been achieved by forming a mixture of ammonium bicarbonate and ammonized peat with waste material such as tree bark ash or wood and a natural material such as zeolite. With these components of the mixture the fertilizer is enriched not only with other elements, among which the most important for plant nutrition is potassium and carbon, but also at the same time increases the sorption effect and further improves the soil structure when applied in practice.

In contrast to known organominoral fertilizers, only phosphorous or boron and molybdenum are present in supplementary amounts in the form of an industrial inorganic fertilizer or concentrate. By decomposing ammonium bicarbonate and by the presence of tree bark ash, the pH is adjusted to higher values, which may be as much as 9,12. This eliminates the need for buffers. The fertilizer according to the invention is based not only on the natural chemical composition of zeolite but in which, for example, the clinoptylobitic zeolite absorbs other elements, in particular the sorption of the ammoniacal form of nitrogen. In the composition of the final product according to the invention, the following are respected: ČSN 46 5730, ČSN 46 5735, ON 4657 and the Plant Nutrition Methodology approved by the Ministry of Agriculture of the Czechoslovak Republic in 1986 and also the fact that soils are usually already sufficiently contaminated and so on. For these reasons, a higher proportion of ash than the solution according to the invention is not recommended.

SUMMARY OF THE INVENTION The peat-based organomineral fertilizer consists of ammonium bicarbonate in an amount of 0.5 to 13.9% by weight, and a peat having a moisture content of 60-80% with a nitrogen content of 0.28 to 1.5%. wherein the ratio of accessible ammoniacal form to the bound form is 1: 1 to 1: 4 at a pH / H 2 O of 4 to 9.5

Ař

% Of CS 272 801 B1 in an amount of 86.1 to 99.5 wt. A further part of the invention consists in the fact that the fertilizer contains one of the following components in an amount expressed in weight concentration:

ash from tree bark or wood up to 1.1% by weight, zeolite up to 2.2% by weight superphosphate containing 7.5 to 19.9% pure phosphorus up to 10% by weight boron-molybdenum concentrate with boron content up to 4% and molybdenum % to 1% to 0.6% wt.

Examples of peat-based organomineral fertilizers produced according to the invention are as follows: Example S, 1 ammonium is 94.423% by weight, peat of the inter-pale type with a humidity of 73.28% and a mineralizable or nitrogen circulation of 0.633% and a pH / HgO of 3.84 5.577%. ammonium bicarbonate yields an organomineral fertilizer β with a high nitrogen content, which contains 16 wt. The ratio of available ammoniacal form of immediate plant nutrition to total mineralizable nitrogen is 1: 1.486. Nitrogen is mainly bound to humic substances, peat.

For this fertilizer, the resulting value ρΗ / Η ^ θ 9.09.

Example No. 2

89.4% by weight, 69.9% by weight peat and 0.326% by weight mineralizable nitrogen and pH / HgO 3.84 1.7% by weight. ammonium hydrogen sulphate with addition of ^- 1.1 wt., tree bark ash, 2.2 wt. zeolite, 5 wt.% triple superphosphate containing 19.44 wt.% pure phosphorus and 0.6 wt. of boron-molybdenum b concentrate containing 3,5% boron and 0,65% molybdenum, an organomineral fertilizer with the following composition of elements by weight in the fertilizer is obtained:

N, 0.583

P 1.015

K 1.02

Na 0.84

Si 0.32

Ca 0.45

Mg 0.33

Mn 0.003

B 0.021

Fe 0.13

Mo 3,9. 10 ^-3

Zn 2.8. ΙΟ ³

S, 0.014

Cu

Pb

CD

7.4. 10 ^"6 and carbon from the ash in an amount of 0.275 wt%. It also contains 96.2 wt. organic compounds from the total weight of the fertilizer produced. The organic substances are already structurally transformed by ammonization into water-soluble, slightly, hardly and non-hydrolyzable organic and bitumen compounds, but mainly huminated substances. The bound nitrogen is already listed in the table.

Assuming application of 1 kg of organomineral fertilizer produced according to this o

For example, in the soil area of 1 m, the corresponding doses are calculated per hectare in kg:

CS 272 801 Bl

B 58.2, P 101.5, κ 102, Ba 84, Si 32, Oa 45, Mg 33, Mn 0.3, B 2.1, Pe 13, Mo 0.39,

At 0.28, S 1.4, Ou 7.4. 10 “ ⁵ , Pb2. IO ^"3 Cd 3.9. 10 ^'4 C, and 27.5 kg per 1 ha of ash and 9,620 kg of said organic compounds and bound and Table stated amount of nitrogen on the final product, the pH / H ₂ 0 8.45.

All values given in the examples depend on the type of peat and its composition, as well as on the amount and composition of ash and zeolite. In the examples, ae is peat bog, tree bark ash and clinoptylitioc zeolite. The composition of the elements is modifiable by the content of the kind of components equal to their quantity. With regard to the B content, the Mo at the maximum amounts according to the invention corresponds to the recommended doses for light soils, with the recommended dose increasing towards heavy soils. The amount of Pe is also in the dose range recommended for light and medium soils. Only in the case of Mg is the amount contained in the fertilizer equal the mean value between the recommended doses for medium and heavy soils. Less than 86 wt. Peat from the total weight of the fertilizer is not recommended. Otherwise, there may be a lack of organic matter to bind the liberated ammonium bicarbonate nitrogen, as demonstrated in the verification of the invention.

Claims (2)

OBJECT OF THE BALANCE An organomineral peat-based fertilizer, characterized in that it consists of ammonium bicarbonate in an amount of .0.5 to ,93.9% by weight and of peat having a moisture content of 60 to 80% with a nitrogen circulation of 0.28 to 1.5%, in wherein the ratio of accessible ammoniacal form to bound form is 1: 1 to 1: 4 and pH / HgO 4 to 9.5 in an amount of 86.1 to 99.5% by weight, 2. Fertilizer according to claim 1, characterized in that it contains any of the following components in an amount expressed as a percentage by weight: ash from tree bark or wood up to 1.1% by weight, zeolite up to 2.2% by weight, superphosphate containing 7.5 to 19.9% pure phosphorus up to 10% by weight, boron-molybdenum concentrate containing boron % to 4% and molybdenum from 1% to 0.6% by weight;