国产和进口阴离子交换树脂膜埋置法测定土壤中的有效磷

Determination of soil available P by a technique of buried anion exchange resin membrane of domestic and exported

对采自全国各地 2 0个土壤样品进行测定 .结果表明 ,树脂膜法测定的土壤磷值与碳酸氢钠法测定的土壤有效磷和植物实际吸磷量间具有极显著的相关性 。

Soil available P in 20 soil samples all over the country was analyzed by different methods. The results showed that the available P values obtained from the resin technique were correlated significantly to those from Olsen method and evaluated by plant uptake. In addition, domestic resin is as good as imported for the determination available P in situ.