Nongda developed a new type of China-activated phosphate
Time:2009-08-03 Read:2129second
Recently, capital of South China Agricultural University, Central Institute of New Fertilizer Research Center developed a new type of activated phosphate. This fertilizer can not only raise the utilization rate of fertilizer to increase the effectiveness of, and phosphate compared to the traditional production costs per ton can be saved at least 400.
It is funded Central Institute of South China Agricultural University Professor Liao Zongwen, the traditional phosphate rock phosphate is added to sulfuric acid, and activated by phosphate fertilizer processing by adding activator. Active agents as a result of the price much lower than the sulfuric acid, phosphate fertilizer production, therefore the cost of activation than the traditional drop in a lot of phosphate. In accordance with the 20 percent per ton of phosphate fertilizer to calculate the amount of activated phosphate per ton cost savings of at least about 400.
LIAO Zong-wen said that the traditional fertilizer such as superphosphate, ammonium phosphate, such as pre-release faster, to the late crop is vulnerable to failure, but also easily with the soil calcium, aluminum, iron, manganese precipitation reaction occurs, reducing the utilization rate. However, the activation of phosphate in such a situation can be avoided. Activator of fertilizer with phosphorus to form a raw material "ion bridge" state, can be achieved "on-demand supply" to the role of slow-release, with a flexible dynamic equilibrium. (Stanley Ng Wing-fai)