High-efficiency multielement compound foliage selenium fertilizer and preparation technique thereof

Abstract

The invention discloses a high-efficiency multielement compound foliage selenium fertilizer which aims to increase selenium artificially. The high-efficiency multielement compound foliage selenium fertilizer comprises the following components: macroelements, medium elements, microelements, chelator, selenium, rare-earth elements, active organic substances, growth regulator and surfactant. The high-efficiency multielement compound foliage selenium fertilizer is especially suitable for producing selenium-rich tea, selenium-rich rice, selenium-rich corn and other selenium-rich agricultural products in low-selenium or selenium-deficient regions. The invention has the advantages of favorable raw material compatibility, scientific proportion, scientific technique and diversified and compounded nutrient elements, and can effectively solve the nutrient deficiency symptom of the crop, thereby achieving the goal of sufficiently supplementing insufficient soil nutrients.

Description

technical field [0001] The invention relates to an artificial selenium-increasing foliar fertilizer, especially a kind of nutrient-containing three elements centered on selenium, chelated trace elements, chelated selenium and rare earth, active organic matter, foliar additives, etc. A new type of foliar fertilizer with full nutrition, high activity and high absorption rate, mainly used in the production of selenium-enriched tea, selenium-enriched rice, selenium-enriched corn and other selenium-enriched products. Background technique [0002] Although there are more than 700 kinds of foliar fertilizers officially registered in my country, there are still many problems in these foliar fertilizer products. The first is the wrong judgment on the standard of foliar fertilizer. From the perspective of leaf color and growth, the effect on improving yield and quality is often ignored; in terms of products, there are many problems: many products are "traditional" and have single nutr...

AI Technical Summary

Problems solved by technology

The first is the wrong judgment on the standard of foliar fertilizer. From the perspective of leaf color and growth, the effect on improving yield and quality is often ignored; in terms of products, there are many problems: many products are "traditional" and have single nutritional elements. The application effect has not been achieved, and most of the modern research results have not been followed up. For example, the compatibility of nutrient elements is not paid attention to, the proportion is unscientific, or the content of nutrient elements is low, the water solubility is poor, and the mobility in plants is poor; too much attention is paid to the application of growth regulators. Ignoring the improvement of nutrient absorption rate; no foliar additives, or inappropriate types of foliar additives, low leaf spread and penetration; do not pay attention to impurities and toxicity of medium and trace elements, such as high content of accompanying elements, heavy metal content Exceeding the standard; poor protection for medium and trace elements, selenium and rare earth elements, the type of chelating agent used is inappropriate or is a large molecule, which directly affects the effective absorption rate of nutrients, etc.

However, whether rare earth elements are chelated or not varies greatly. According to the research of Chen Zitao and others from the Department of Chemistry of Nanjing University, the absorption rate of rare earth elements that have not been chelated is only a few thousandths, and the effect is very poor.

Images