Leakage-proof water-retaining compound fertilizer and preparation method thereof

Abstract

The invention discloses a leakage-proof water-retaining compound fertilizer and a preparation method thereof. The leakage-proof water-retaining compound fertilizer comprises, by weight parts, 19-21 parts of urea, 30-40 parts of papermaking waste liquor, 2-3 parts of polyaspartic acid, 1-2 parts of cetyl alcohol, 12-14 parts of sodium humic acid, 13-15 parts of monopotassium phosphate, 2-4 parts of EM fungicide, 11-12 parts of chitosan, 3-5 parts of castor oil, 12-15 parts of sawdust, 8-10 parts of protein mud, 6-8 parts of zinc chloride, 1-2 parts of silica sulfate, 8-10 parts of zeolite powder, 1-2 parts of carboxymethyl cellulose, 6-9 parts of polylactic acid, 8-12 parts of sodium alginate, 0.5-1 part of N,N-methylene-bisacrylamide and an appropriate amount of water. According to the leakage-proof water-retaining compound fertilizer, functional components such as the castor oil and cetyl alcohol are added, so that a particle flocculation effect is enhanced, and water and fertilizer leakage is reduced; the zeolite powder is utilized, an agglomerate particle structure is added, soil hardening is avoided, so that fertilizer draining and soil hardening are avoided, and the water and fertilizer utilization rate is improved.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to an anti-leakage and water-retaining compound fertilizer and a preparation method thereof. Background technique [0002] At present, there are generally three kinds of agricultural fertilizers in the Chinese market: one is chemical raw material fertilizer, one is organic fertilizer, and the other is chemical raw material and organic fertilizer mixed fertilizer; the disadvantage of chemical raw material: long-term use will cause land soil compaction, Affect the growth of crops, resulting in a gradual reduction in production; the disadvantages of organic fertilizers are: the nutrients required by plants are insufficient to meet the needs of crop production; they affect crop yields; the disadvantages of mixed fertilizers: the organic matter and total nutrients in the fertilizer formula are contradictory, so High and low, if the organic matter content is too high, it ...

AI Technical Summary

Problems solved by technology

[0003] Mulch film has the functions of heat preservation, water retention, and frost protection for crops. The application of mulch film technology has greatly improved and increased the yield and benefit of crops. However, traditional mulch film is a synthetic polymer compound that is almost non-degradable in the natural state. If it is not treated after use, it will cause great pollution to the soil environment and affect the growth of crop roots. However, the treated plastic film cannot be recycled due to moisture and damage. It can only be recycled as garbage, which is labor-consuming and time-consuming.