Damp-proof water-retention compound fertilizer and preparation method thereof

Abstract

The invention discloses a damp-proof water-retention compound fertilizer and a preparation method thereof. The damp-proof water-retention compound fertilizer is prepared from, by weight, 20-22 parts of urea, 12-15 parts of coconut chaff, 8-10 parts of sphagnum, 8-10 parts of illite, 8-10 parts of tea shell powder, 3-5 parts of an EM fungicide, 20-30 parts of brewing waste liquid, 10-12 parts of fruit wine residues, 3-5 parts of fructus toosendan powder, 3-5 parts of crofton weed, 18-20 parts of sodium humate, 2-3 parts of aluminium potassium sulfate, 14-16 parts of monopotassium phosphate, 3-5 parts of cellulose acetate, 10-12 parts of chitosan, 6-8 parts of shell powder, 6-9 parts of polylactic acid, 8-12 parts of polyvinyl acetate, 0.5-1 part of N,N-methylene bisacrylamide and a proper amount of water. The coconut chaff, the sphagnum, the tea shell powder and other ingredients are added to the damp-proof water-retention compound fertilizer, the compound fertilizer has a damp-proof effect while nutrition is increased, and accordingly the phenomenon that the fertilizer very easily cakes or melts into liquid to run off after being affected with damp or stained with water and then the fertilizer efficiency is severely affected is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of slow-release fertilizers, in particular to a moisture-proof 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.