Preparation technology of microorganism-containing nitrogen manure

Abstract

The invention provides a preparation technology of microorganism-containing nitrogen manure. The preparation technology comprises the following steps of: a. mixing 0.01-0.03% of CaC12, 0.3-1.2% of NaHCO3, 0.05-0.2% of FeCl3, 1.0-3.0% of K2HPO4, 0.2-0.6% of Na2MoO, 0.3-0.7% of CaCO3,0.02-0.06% of microelement liquid, 30-60% of carbon source, 6-12% of nitrogen source and 20-40% of water according to weight percentages to obtain a fermenting raw material; and b. uniformly mixing 85-95% of fermenting raw material and 5-15% of nitrogen-fixing bacteria according to weight percentages, adjusting the pH value of the mixture to 7.1-7.8 so as to prepare the fermentation liquid, placing the fermentation liquid in a fermentation tank, turning and throwing the fermentation liquid for one time each five hours, wherein the temperature is 25-50 DEG C, carrying out primary fermentation for 4-6 days, and carrying out secondary fermentation for 5-7 days, thus obtaining the microorganism-containing nitrogen manure. The microorganism-containing nitrogen manure is rich in nutrition and high in utilization rate of nitrogen fertilizer, does not burn roots and seedlings and can be used for activating free soil, improving the physical behavior of the soil, solving the problem of short long-residual action of urea, improving the quality of fruit and reducing the generation of pesticide residues.

Description

technical field [0001] The invention belongs to the field of agricultural fertilizers, and relates to the preparation of nitrogen fertilizers, in particular to a preparation process of microbial nitrogen-containing fertilizers. Background technique [0002] Nitrogen plays an important role in the growth of plants, and nitrogen fertilizer is also an indispensable fertilizer for farmers to plant crops. The main general of nitrogen fertilizer "urea" has occupied the world's sales market for more than 20 years. With the development of the fertilizer industry and society, urea has brought harvest to agricultural production, but it has also produced certain side effects. First, after a large amount of urea is applied Dissolution and cooling can easily cause local freezing damage and fertilizer damage to the root system of plants, which is what we usually call "burning seedlings"; second, the residual biuret has an inhibitory effect on crops and is harmful to the germination and gr...

AI Technical Summary

Problems solved by technology

The main general of nitrogen fertilizer "urea" has occupied the world's sales market for more than 20 years. With the development of the fertilizer industry and society, urea has brought harvest to agricultural production, but it has also produced certain side effects. First, after a large amount of urea is applied Dissolution and cooling can easily cause local freezing damage and fertilizer damage to the root system of plants, which is what we usually call "burning seedlings"; second, the residual biuret has an inhibitory effect on crops and is harmful to the germination and growth of seeds. Biuret When the content exceeds 1%, it is not suitable for seed fertilizer, seedling fertilizer and foliar fertilizer, and the urea content in other application periods should not be too much or too concentrated; the third is that after urea is converted into ammonium bicarbonate, it is easy to decompose and volatilize on calcareous soil , resulting in nitrogen loss, deep soil cover should be applied when applying, increasing labor intensity, time-consuming and laborious; Fourth, applying urea will cause nitrate and nitrite residues in agricultural products such as plant seeds, fruits, leaves, etc., endangering human health

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