Paste-state pear tree leaf fertilizer additive capable of inhibiting heavy metal absorption by sulfydryl humin

Abstract

The invention discloses a paste-state pear tree leaf fertilizer additive capable of inhibiting heavy metal absorption by sulfydryl humin. The sulfhydrylation modification is performed on humin by a series of process steps, the number of sulfydryls is increased on the surface of the humin, the toxicity of multiple metals can be coupled and antagonized, a chelated humic acid synergist is added, the absorption of pear trees on heavy metals can be inhibited, and by addition of the produced product into a paste-state pear tree leaf fertilizer, rich nutrients are provided for pear trees, and activities of trace elements and major elements are enhanced, so that the immunity of the pear trees is enhanced, the yield is increased, and the application prospect is good.

Description

Technical field [0001] The invention relates to the technical field of fertilizers, in particular to a pear paste foliar fertilizer additive capable of inhibiting the absorption of heavy metals by mercaptohumin. Background technique [0002] Foliar fertilizer is a type of fertilizer in which nutrients are applied to the surface of crop leaves and perform basic functions through the absorption of the leaves. The stomata on the surface of the leaves are the channels through which the fertilizer enters the leaves. It has fast absorption, strong effect, low dosage and efficiency. The high characteristic can supplement the lack of fertilization in the roots. During the growth of the crop, the crop has shown some nutrient deficiency. Because it takes a certain time for the nutrients to be absorbed by the crop, it cannot alleviate the lack of nutrients in time. Symptoms: At this time, if foliar fertilization is used, nutrients can quickly enter the plant through the leaves and solve the...

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.