SU1576521A1 - Method of obtaining organo-mineral fertilizer - Google Patents

Abstract

The invention relates to chemical technology for the production of organo-mineral fertilizers and can be used in agriculture. The purpose of the invention is to increase the agrochemical efficiency of organic-mineral fertilizer. For this, milled peat is treated with an ammoniate solution of calcium, magnesium, ammonium and manganese nitrate salts containing, g / l: NH 4NO 3 260-320

CA (NO 3) 2 150-180

MG (NO 3) 2 40-50

MN (NO 3) 2 30-45 and NH 3 85-90, and a by-product of the processing of manganese ores, taken in an amount determined by the absorption capacity of the original ammonia peat. The treated peat is mixed with potash and phosphate fertilizers. The organo-mineral fertilizer obtained has PH = 7.2, contains soluble humates, P 2 O 5, N, K and CA, MG, MN and is more effective than fertilizer with untreated peat. In addition, according to the proposed method, waste is utilized and the cost of fertilizer production technology is reduced.

Description

The invention relates to the field of chemical technology, in particular to the production of organic mineral fertilizers, and can be used in agriculture.

The purpose of the invention is to increase the agrochemical efficiency of an organic fertilizer.

Example 1. 1 t of milled peat of 60% humidity, having an absorption capacity of ammonia 0, 55%, i.e. 8.5 kg, treated with an ammoniacal solution (95 l), containing, g / l: NH4N03 310; Ca (N03) a 1-50; Mg (N03) 45; Mn (N03) 2 35; NH 90 90. The total content of total nitrogen in the initial solution is 21.2 kg.

After thoroughly mixing the reacting components, the resulting mass is knocked out and kept for 20-25 days, and then the required amount of phosphate and potash fertilizers are added to it.

Get the product by the ratio N: P: K 1: 1: 1. the consumption of potash is calculated by the formula

SP

|

about sd

tsD

 45 kg of chloride

Ah2BhYU

CW potassium,

where A is the content of bound nitrogen in the applied solution, kg:

B - mol. KS1; C - mol.m.

D is the content in the potassium fertilizer of the digestible substance (K20),%.

The consumption of superphosLat per 1 ton of processed torL is calculated by the formula

Ah 100

.

 112 kg of superphosphate,

NH3 86. Total Nitrogen in Ammonium

where A is the total nitrogen introduced in the torL with an ammine solution, kg;

D is the average% content assimilated in the initial superphosphate.

The obtained organic-mineral fertilizer has a pH of 7.2-7.3 and contains,%: soluble humates 7.9; N 1.9; 1.75; 1.83 and calcium, magnesium, manganese, ammonium nitrates that do not react with peat, 4.7,

EXAMPLE 2 1 t of milled peat with 50% moisture and 8.9 kg of ammonia absorptive capacity are treated (103 l) with an ammoniacal solution containing, g / l: SZZHEe 300, Ca (N031a 160, Mg (N03 ) / 45, Mn (N03) 4 40, a solution of 21.9 kg.

1 After mixing the reacting components, the resulting mass is spud and kept for 25 days, and then the calculated amount of phosphate and potash fertilizers is added to it. When the ratio N: P: K is 1: 1: 1, the consumption of phosphorous fertilizers per 1 ton of processed peat is 120 kg of superphosphate. Potassium fertilizer 52 kg of potassium chloride.

As a result of this treatment, humic acids found in peat are converted into soluble humates and torso is enriched with water-soluble nutrients, including microelement in the form of manganese.

The solution used to treat peat is formed as a by-product in the preparation of expensive manganese concentrates, which are widely used in metallurgy.

0

five

for the production of special alloys and in the chemical industry for the production of highly deficient manganese compounds of technical and reactive qualification.

The resulting organic fertilizer has a pH of 7.2 and contains soluble humates 8.3; PiOj 1.8; N 1993; K-2.0 1.86; calcium, magnesium, manganese and ammonium nitrates .-}.

one

The effectiveness of the method is

in reducing ammonia losses, using a by-product of nitric acid processing of manganese ores; an increase in the yield of the crop and in the reduction of the cost of the process of obtaining organic-mineral fertilizer.

The test results of organo-organic fertilizer show that the yield gain compared with the control is:% of fruit trees and a vineyard on average 15-18, beet 10-15, citrus 14, corn 13, cararantus pink 50, kidney tea 55, stephanie smooth 30.

Claims (1)

Invention Formula The method of obtaining organic fertilizer by treating milled peat with 50-60% moisture with a chemical reagent, taken in an amount determined by the absorption capacity of the original ammonia peat, and subsequent mixing with potash and phosphorus fertilizers, characterized in that In order to increase its agrochemical efficiency, an ammonia solution of nitrate salts, calcium, magnesium, ammonia and manganese salts is used as a chemical reagent for processing peat. composition, g / l: 260-320; Ca (N05) -g 150-180; Mg (N05) 2 40-50; Mh (N03) s 30-45 and NH3 85-90.