【作者】 程明芳； 金继运； 杨俐苹； 黄绍文；

【Author】 Cheng Mingfang Jin Jiyun Yang Liping Huang Shaowen (Soil and Fertilizer Institute, Chinese Academy of Agricultural Sciences, Beijing 100081)

【机构】 中国农业科学院土壤肥料研究所；

【摘要】 应用上海化工厂生产的国产阳离子交换树脂膜在室内提取了山东莱阳的两个钾肥定位试验和河北玉田的两个钾肥定位试验不同施肥处理的土壤含钾量,用国产树脂膜根系模拟器在田间原位原状提取了河北玉田一个钾肥定位试验的土壤钾。结果表明,施用钾肥明显提高了土壤含钾量,钾肥与有机肥配合施用的效果优于钾肥或有机肥单独施用的效果。更多还原

【Abstract】 The soil potassium in four long term potash experiments was extracted using cation exchange resin membrane made in Shanghai with burying method in laboratory , and the soil potassium in a long term potash experiment was extracted in situ using a domestic made resin membrane plant root simulator.It was shown that potash apph’cation significantly increased soil potassium, and the effect of combined application of potash and organic manure was better than that of potash or organic manure apph’cation separately in terms of soil potassium content increase.更多还原