Preparation method of high-efficiency environment-friendly quaternary ammonium salt chitosan foliar fertilizer

Abstract

The invention relates to a foliar fertilizer assisting in comprehensively supplementing nutrients needed by crop growth, regulating better growth of crops and substantially improving crop yield. With added rare earth elements lanthanum and cerium, seed germination can be promoted, root system growth can be promoted, root system vitality can be improved, crop stem growth can be promoted, seedling dry weight and chlorophyll content can be improved, crop photosynthetic efficiency can be improved, and further crop yield and quality can be improved. A trace element selenium is added, and can act synergistically with gibberellin, quaternary ammonium salt chitosan and the like, such that fungus inhibition capacity is improved, crop resistance is improved, chlorophyll synthesis can be regulated, and crop quality can be improved. A main component modified quaternary ammonium salt chitosan has relatively high repelling and inhibition effects against crop pests and diseases, and can be used for replacing chemical insecticide or fungistat with toxic or side effect in traditional foliar fertilizers. Also, the quaternary ammonium salt chitosan can naturally degrade, and has an advantage of low dose. Compared with that of traditional foliar fertilizers, the cost of the fertilizer provided by the invention is reduced by approximately 10%. The fertilizer has the three advantages of high efficiency, environment friendliness, and low cost.

Description

technical field [0001] The invention relates to the preparation of a high-efficiency and environment-friendly foliar fertilizer, which belongs to the field of agricultural foliar fertilizer preparation. Background technique [0002] Foliar fertilizer has been widely studied and applied as a convenient fertilizer sprayed on the surface of crops to promote crop growth and increase production. However, there are three common problems in the application process of foliar fertilizer: (1) Increase production The effect is not obvious, and the general yield increase rate does not exceed 5%; (2) The use cost is relatively high, generally above 40 yuan / kg, which increases the burden on farmers; (3) Some chemical fungicides and antibacterial agents in foliar fertilizers, etc. Harm and pollution to human body and environment. [0003] The main component of this foliar fertilizer is quaternary ammonium chitosan extracted and prepared from shrimp and crab shells. This quaternary ammoniu...

AI Technical Summary

Problems solved by technology

[0002] Foliar fertilizer has been widely studied and applied as a convenient fertilizer sprayed on the surface of crops to promote crop growth and increase production. However, there are three common problems in the application process of foliar fertilizer: (1) Increase production The effect is not obvious, and the general yield increase rate does not exceed 5%; (2) The use cost is relatively high, generally above 40 yuan / kg, which increases the burden on farmers; (3) Some chemical fungicides and antibacterial agents in foliar fertilizers, etc. Harm and pollution to human body and environment