淮北平原砂姜黑土养分状况及其空间变异
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安徽农业科学,Journal of Anhui A .Sci.2006,34(4):722-723 责任编辑曹淑华责任校对胡剑胜
淮北平原砂姜黑土养分状况及其空间变异
李录久,郭熙盛,王道中,孙义祥,何传龙,吴萍萍(安徽省农业科学院土壤肥料研究所,安徽合肥230031)
摘要应用经典统计学方法研究淮北平原砂姜黑土养分状况及其空间变异性。结果表明,土壤活性酸、有效P和有效B、Mn、Fe等微 量元素含量的空间变异性较大,pH值及有效Ca.Mg.Zn含量的空间变异性很小,有机质及有效N、K、S、Cu等营养元素含量的空间变 异性介于两者之间。土壤有效N、K、P、zn、Mn较为缺乏,Ca、M cu和B等中微量元素含量丰富。养分缺乏程度为N>Zn>K>P>Mn,缺F
缺S土壤较少。
关键词土壤有效养分含量;空间变异性;淮北平原砂姜黑土 中图分类号S151.9*5 文献标识码A 文章编号0517—6611(2006)o4—0722—02
State and Spatial Variability of Nutrient of Lime Coneretion Black Soll ln Huaibei Plain
LILujiu etal(Institute ofSoil andFertilizer,AAAS,Herei,Anhui 230o31)
Abstract In the light of the principle of classical statistics.the study on the status and spatial variability of nutrient of lime concretion black soil
in Huaibei pluin waft conducted.The results showed that the spatial vailability of active acid,available phosphorus。available trace element聃
boron,manganese and iorB was larse;pH value and available calcium,magnesium and zinc was little and organic matter,availbale nitrogen,
potassium,sulfurand copperwasmedium.AvailableN,Zn,K,P andMnin soilswereinsufifcient;mediumandtrace element聃available Ca,
Mg。Cu and B were