Preparation of carboxyethyl chitosan compound foliar fertilizer

Abstract

A foliar fertilizer of the invention can comprehensively supplement nutrients which are essential to growth of crops, adjust crops to better grow and obviously increase yield of crops. Rare earth element lanthanum and cerium can promote seed germination, promote crop stem growth and root growth, increase root activity and chlorophyll content and enhance photosynthetic efficiency of crops to further increase yield of crops and raise quality of crops; and trace element selenium can act synergistically with an antibacterial agent, carboxyethyl chitosan and the like, raise fungi-inhibiting ability, enhance stress resistance of crops and adjust synthesis of chlorophyll. The main component carboxyethyl chitosan has a strong effect of expelling and inhibiting insect diseases of crops, and can replace chemical pesticides or bacterial depressants which have toxic and side effect in traditional foliar fertilizers. Thus, the novel foliar fertilizer is safe and environment-friendly, and can be degraded naturally. Use amount of the foliar fertilizer is small. In comparison with cost of a traditional foliar fertilizer, cost of the novel foliar fertilizer is reduced by about 10%. The novel foliar fertilizer has three characteristics and advantages of high efficiency, environmental protection and low cost.

Description

technical field [0001] The invention relates to a foliar fertilizer using carboxyethyl chitosan as a main raw material, belonging to the field of agricultural foliar fertilizer preparation. Background technique [0002] In recent years, the production and application of foliar fertilizers in my country have developed rapidly, and there are many types of foliar fertilizers on the market. Foliar fertilizer is formulated from one or more of macronutrients, medium and micronutrients, and its main function is to provide and supplement crop nutrition in a targeted manner and improve the growth of crops. Some of them are composed of inorganic nutrients and plant nutrients. Growth regulator, amino acid, humic acid, alginic acid, sugar alcohol and other biologically active substances or fungicides and other beneficial substances are mixed. Among them, biologically active substances have a stimulating effect on plant growth. Therefore, this type of foliar fertilizer combines the func...

AI Technical Summary

Problems solved by technology

Fertilizer is not easy to penetrate into the leaves, and the water droplets of liquid fertilizer will slide down from the surface, resulting in the loss of fertility, resulting in an increase in fertilizer use and a decrease in yield increase

In addition, certain heavy metal elements or chemical fungicides and antibacterial agents in foliar fertilizers may cause harm and pollution to human body and environment.