【摘要】 用FOX法研究长期定位施肥土壤磷素状况,通过对23年长期定位试验土壤的测定计算,结果表明M1、M1N1、M2、M2N2处理不施磷肥就达到土壤溶液0.2μg/g水平,能满足作物正常生长的需要,而长期不施有机肥和磷肥的处理CK、N1、N2则每平方米施80.14g、104.14g、115.35g含P2O514%的磷肥(过磷酸钙)才能满足土壤中正常的磷素水平。更多还原

【Abstract】 Soil phosphorus were studied with Fox method by measuring and calculating soil in 23 year’s location experiment.The results indicated that the Soil solution contained P at 0.2μgg-1 in M1,M1N1,M2,M2N2 freatments (without P fertilizer).If P fertilizer of 80.14,104.14 and 115.35gm-2 was applied,Soil P could reach nor mal level.更多还原