摘要
苏南地区黄刚土和白土供钾潜力较低 ,加之复种指数较高、雨水过多 ,致使土壤钾素亏缺严重 ,而我国钾矿资源贫乏 ,钾肥生产量有限 ,因此如何充分利用有限的钾肥资源 ,就显得尤为迫切和重要 .本文主要从钾肥的供需现状、作物的需钾特征和土壤的供钾规律等方面探讨了钾肥的合理投向及其调节 。
Huanggang soil and white soil in South Jiangsu have a low capacity and potential of K supply due to multiple crop indexes and high precipitation. Because resources and production of K fertilizer are limited in China, what is important is to use the limited K resources efficiently. Therefore, we discussed the current situation of K fertilizers. We also investigated the K uptake feature of some crops and K supply of the two soils in terms of adequate application of K fertilizers and the increase of crop yields.
出处
《土壤通报》
CAS
CSCD
北大核心
2001年第1期25-27,共3页
Chinese Journal of Soil Science
基金
"江苏省苏南中低产田改良实验区"的部分研究内容
中国科学院重大项目! (KZ95 1 A1 2 0 2 )资助
