Controlled release fertilizer synergist for improving drought resistant ability of corn and preparation method thereof

Abstract

The invention discloses a controlled release fertilizer synergist for improving drought resistant ability of corn. The synergist is prepared from the following raw materials in parts by weight: 16-17 parts of ammonium humate, 2-3 parts of potassium chloride, 2-4 parts of zinc sulfate heptahydrate, 10-15 parts of paulownia sawdust, 26-28 parts of sugar beet pulp, 15-17 parts of old tea leaves, 2-3 parts of abscisic acid dry powder, 2-4 parts of controlled release microbial layer, 4-5 parts of controlled release microelement chelation layer, 6-9 parts of controlled release microcrystalline ground phosphate rock coating layer and a moderate amount of water. According to the fertilizer synergist for corn provided by the invention, through the inherent high adsorbability of the synergist, moisture in soil is fixed, and moisture loss is reduced; the added components like an abscisic acid preparation are absorbed by corn and conveyed to stem and leaf parts, so that stomatal closure is facilitated, stomatal opening is inhibited, symplasm water flow is increased, apoplast water flow is reduced, the utilization and exchange of moisture for corn in drought conditions are further improved, and the drought resistant ability of corn is improved.

Description

technical field [0001] The invention relates to the technical field of fertilizer synergists, in particular to a slow-release fertilizer synergist for improving corn drought resistance and a preparation method thereof. Background technique [0002] Corn is an important economic crop in my country, and the input of fertilizer plays a vital role in the yield of corn. However, in the actual planting process of corn, there have been problems of single and excessive fertilization for a long time, and the average utilization of fertilizer The rate is very low, the main reason is that the fertilizer is quick-acting and volatile and easy to lose. The corresponding measures are to use slow-release coated fertilizers to improve the utilization rate of nutrients, but the strength of the single-layer coating is low, the proportion of slow-release nutrients is fixed, and it is not targeted, and does not meet the constraints of crops' nutrient requirements in different periods. own develo...

AI Technical Summary

Problems solved by technology

[0002] Corn is an important economic crop in my country, and the input of fertilizer plays a vital role in the yield of corn. However, in the actual planting process of corn, there have been problems of single and excessive fertilization for a long time, and the average utilization of fertilizer The rate is very low, the main reason is that the fertilizer is quick-acting and volatile and easy to lose

The corresponding measures are to use slow-release coated fertilizers to improve the utilization rate of nutrients, but the strength of the single-layer coating is low, the proportion of slow-release nutrients is fixed, and it is not targeted, and does not meet the constraints of crops' nutrient requirements in different periods. own development