期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
A Proposal to Set Up a Stable Supply System for Potassic Fertilizer in China
1
作者 CAS Academic Division of Chemistry 《Bulletin of the Chinese Academy of Sciences》 2000年第3期153-157,共5页
Agriculture is an important foundation of China’s socio-economic development. To secure the sound development of modern agriculture in the 21st century, the supply of fertilizers such as potassium is a key factor. Ow... Agriculture is an important foundation of China’s socio-economic development. To secure the sound development of modern agriculture in the 21st century, the supply of fertilizers such as potassium is a key factor. Owing to the limited arable land in China, a vital measure to feed the country’s increasing population is the augmentation of fertilizers so as to gain higher per unit area grain yields. At present, for a fairly long time to come, additional fertilizer resources will mainly come from nitrogen, phosphorus and potassium fertilizers. But there is a severe application disproportion between nitroge- 展开更多
关键词 than more A Proposal to Set Up a Stable Supply System for Potassic fertilizer in China
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部