Combined additive capable of stably releasing nitrogen and application thereof
The application number is CN20 13 10348596. X, the application date is 20 13.08. 12.
Publication (announcement)No. CN 103396267A Publication (announcement) Date 2013.1.20
At present, the validity of legal status is under review.
Classification number C05G 3/08 I [2006.438+0]
Applicant (patent right): Liaoning Luyuan Bio-agricultural Technology Co., Ltd.
Address: Changsheng Village, Taiping Township, Changtu County, Tieling City, Liaoning Province 1 12500
Inventor (Designer) Li Ronghua; Liu Changshun
right of priority
abstract
The invention discloses a compound additive for stable release of nitrogen and its application. The nitrogen stable release combined additive consists of cyanamide composition, bentonite, clinoptilolite and citric acid soluble calcium silicate powder. The combination additive for stable release of nitrogen contains medium and trace elements, which can improve the nitrogen utilization rate of nitrogen fertilizer, reduce the gaseous loss and leaching loss of nitrogen fertilizer, reduce the loss and waste of excessive elements and improve the return rate of fertilizer. The long-acting slow-release compound fertilizer (compound fertilizer) made by mixing nitrogen slow-release compound additives with nitrogen-containing compound fertilizer has the advantages of high nitrogen utilization rate and long fertilizer efficiency, which makes the fertilizer supply rate basically conform to the law of crop fertilizer demand, can meet the needs of crops in the whole growth period without one-time topdressing, saves fertilizer, reduces cost, and increases production and quality.