Special paste-shaped leaf fertilizer additive with rare-earth modified chitosan for pear trees

Abstract

The invention discloses a special paste-shaped leaf fertilizer additive with rare-earth modified chitosan for pear trees. Formula reaction is carried out on functional groups of lanthanum nitrate, high-lanthanum rare-earth and flaky chitosan, then the rare-earth modified chitosan is prepared, the rare-earth modified chitosan is added when a product is prepared, the prepared product is added when a paste-shaped leaf fertilizer is prepared, the fertilizer is sprayed to the pear trees, then the concentration of sugar of the pear trees can be increased directly after the fertilizer is absorbed by leaves, growth of root systems of the pear trees can be promoted, and meanwhile as the additive is rich in multiple nutrient elements, absorption of nutrition by the leaves can be promoted, the stress resistance of the pear trees can be improved, the disease and insect resistance of the pear trees can be improved, and the yield of the pear trees can be increased.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a paste-like foliar fertilizer additive for pear trees added with rare earth modified chitosan. Background technique [0002] Foliar fertilizer is a type of fertilizer that applies nutrients to the surface of crop leaves and exerts its basic function through the absorption of leaves. The pores on the surface of leaves are the channels for foliar fertilizer to enter the leaves. It has fast absorption, strong effect, low dosage and high efficiency. High characteristics can supplement the deficiency of root fertilization. During the growth process of crops, crops have shown some nutrient deficiency. Since it takes a certain time for soil fertilization, nutrients can be absorbed by crops, and the deficiency of crops cannot be alleviated in time. Symptoms, at this time, foliar fertilization can make nutrients quickly enter the plant through the leaves and solve the problem of nutr...

AI Technical Summary

Problems solved by technology

In the article, the foliar fertilizer adopts a liquid formula, which has low nutrient content and is easy to crystallize out, and it is easy to lose when applied to the foliage, resulting in waste of fertilizer. Paste fertilizer is a form between solid fertilizer and liquid fertilizer. With the increase of water volume, its fluidity increases, which overcomes the shortcomings of solid fertilizers, which are easy to absorb moisture and agglomerate, dissolve slowly during use, and liquid fertilizers have low nutrient content and are easy to crystallize and precipitate.