摘要
根据近年来衡水7个县市的试验表明:在土壤速效钾含量为100～150mg/kg情况下,棉花钾肥施用量以每公顷施112.5kg为宜;在土壤不同钾素含量的情况下,土壤速效钾含量与施钾肥的增产效果呈负相关;在施用方法上建议底施为主,底追结合。
Experiment showed the amount of the potassium for the cotton was suitable for 112.5kg/hm2 in the condition that the content of quickacting potassium was 100～150mg/kg; In the condition that the potassium content in the soil was different, the quickacting potassium content had a inverse relation with the increase production coming from the increasing potassium. As the way of using potassium, the basic application was the main use and combined with the dressing application.
出处
《土壤肥料》
CSCD
北大核心
2003年第3期17-19,共3页
Soils and Fertilizers
