摘要
贵州南部山地黄壤低ｐＨ牧地施石灰可调节土壤ｐＨ，减少铁、铝、锰毒害，增加阳离子的交换量，减少钾的淋失。同时，施石灰还能影响土壤与植物的Ｋ／（Ｃａ＋Ｍｇ）比，在石灰与磷肥同时施用时应考虑石灰产生的逆效应。
study on liming of low pH grazing land in upland yellow earth in southern Guizhou was performed and effect of liming on white clover growth was observed.The results showed that liming regulated soil pH ;decreased toxicity of Fe ,Mn and Al; increased CEC and decreased K leaching loss.Moreover,liming affected the K/(Ca + Mg)rate between soil and plant.When lime and P fertilizer were applied at the same time,counter effect by liming must be considered.
出处
《中国草地》
CSCD
1995年第3期34-37,共4页
Grassland of China
关键词
石灰
白三叶草
养分
lime,White Clover,Nutrient value
