Quick-acting loss-free nitrogenous fertilizer prepared by taking perlite as carrier

Abstract

The invention relates to a quick-acting loss-free nitrogenous fertilizer prepared by taking perlite as carrier. The quick-acting loss-free nitrogenous fertilizer is prepared by preparing the following ingredients by weight: 3-4 parts of 50-60% urea aqueous solution, 1 part of open-cell expanded perlite, 0.1 parts of soybean meal powder and 2-3 parts of zeolite powder with 80-100 meshes, evenly mixing urea aqueous solution with soybean meal powder, directly spraying the mixed solution on the open-cell expanded perlite particle in a granulator, simultaneously spraying zeolite powder to form granulated fertilizer coated by zeolite powder, drying to obtain the finished products, and packaging. The quick-acting loss-free nitrogenous fertilizer is simple in technical process and easy to produce and prepare, and loss of urea in soil can be reduced. The quick-acting loss-free nitrogenous fertilizer can be quickly converted into ammoniacal nitrogen, thereby being beneficial to absorption of crops. The perlite has high adsorption effect and water absorption performance, thereby improving loose, permeability and moisture retention of soil, and improving the draught-resistant ability of soil, meanwhile, the zeolite powder contains various trace elements needed by plants, and soybean meal is excellent organic fertilizer, and urease contained in the soybean meal is utilized to prompt the decomposition of water-soluble urea.

Description

technical field [0001] The invention relates to fertilizer production and processing technology, in particular to the preparation of quick-acting and loss-free nitrogen fertilizer using perlite as a carrier, which is used for the nitrogen fertilizer required for the cultivation of various crops. Background technique [0002] At present, urea is one of the main nitrogen fertilizers used in crop cultivation. Due to its high nitrogen content and convenient application, it accounts for more than 80% of the existing nitrogen fertilizer application. Ammonium sulfate, ammonium nitrate or ammonium water are rarely used, but urea is applied The soil must be transformed into ammonium nitrogen before it can be absorbed by crops. At the same time, continuous application will cause soil compaction. It takes 5-8 days for urea to be effective in the soil. If it rains after application, the crops will not absorb it. Washed and lost by rainwater not only causes waste, but also pollutes the s...

AI Technical Summary

Problems solved by technology

[0002] At present, urea is one of the main nitrogen fertilizers used in crop cultivation. Due to its high nitrogen content and convenient application, it accounts for more than 80% of the existing nitrogen fertilizer application. Ammonium sulfate, ammonium nitrate or ammonium water are rarely used, but urea is applied The soil must be transformed into ammonium nitrogen before it can be absorbed by crops. At the same time, continuous application will cause soil compaction. It takes 5-8 days for urea to be effective in the soil. If it rains after application, the crops will not absorb it. Washed and lost by rainwater, it not only causes waste, but also pollutes the surrounding water environment. In order to overcome the above-mentioned characteristics of urea itself, this quick-acting and loss-free nitrogen fertilizer is designed.