Micro/nano nitrogen stable-release long-acting synergist and applications thereof

Abstract

The invention discloses a micro / nano nitrogen stable-release long-acting synergist. The micro / nano nitrogen stable-release long-acting synergist is composed of calcium cyanamide, attapulgite and dolomite dust, the fineness of a mixture formed by the homogeneous mixing of calcium cyanamide, attapulgite and dolomite dust is 100-1800 meshes, and the mixture contains medium elements and trace elements, so that the synergist can raise the nitrogen utilization ratio of a nitrogen-containing fertilizer, and supplement medium elements for promoting the growth and development of crops. The gaseous loss and leaching loss of a nitrogenous fertilizer are reduced, the loss and wastes of excessive elements are reduced, and the return rate of the fertilizer is improved; and a long-acting slow-release compound (mixed) fertilizer prepared by mixing the micro / nano nitrogen stable-release long-acting synergist with a nitrogen-containing compound (mixed) fertilizer has the advantages that the nitrogen utilization ratio is high, the fertilizer efficiency is long, the fertilizer supply rate and the fertilizer-required rule of crops are basically consistent, the needs of a crop in a whole growth period can be satisfied after a base fertilizer is applied at a time and no topdressing is performed, the fertilizer is saved, the cost is reduced, the yield is increased, and the quality is improved.

Description

technical field [0001] The invention relates to a micro / nano nitrogen stable release long-acting synergist, which is an additive for producing nitrogen stable slow-release long-acting compound fertilizer. Background technique [0002] my country is the world's largest chemical fertilizer consumption and production country, and its production and application are increasing year by year, especially in some economically developed coastal areas. The expensive rural labor costs make people abandon the tradition of using organic fertilizers and rely on a large amount of chemical fertilizers. put in. According to statistics, the total consumption of chemical fertilizers in my country is about 50 million tons, of which the consumption of nitrogen fertilizer is about 30 million tons, ranking first in the world. [0003] In recent years, although the proportion of compound fertilizer used in my country has increased, the development has been slow, which has greatly limited the develop...

AI Technical Summary

Problems solved by technology

However, the nitrogen stabilizing additives used in the production of compound fertilizers in the prior art have problems such as single function, unsatisfactory effect, high price, increased input cost, and impact on the soil ecological environment.

[0005] There is no requirement for trace elements in the existing production standards of compound fertilizers. Due to cost considerations, compound fertilizer manufacturers seldom add trace elements. The occurrence of physiological diseases caused by factors becomes the limiting factor that restricts the increase of yield

Images