不同阴离子化肥对设施土壤理化性状的影响研究

The effect of fertilizer with different anions on the physiological and chemical characteristics of solar greenhouse soil

  • 摘要: 试验研究了不同阴离子化肥对设施土壤理化性状的影响结果表明,与对照相比,NO-3、SO2-4 和C1- 阴离子化肥均使土壤电导率升高,pH值降低,且施肥水平越高而升(或降低)幅越大,对土壤的影响为C1->SO2-4>NO.-3。含cl-化肥有利干土壤中速效氮、磷、钾积累,SO2-4降低土壤N素有效性,速效铁含量随施肥量增加而升高,化肥阴阴离子种类施肥量对土壤速效的影响则较小。

     

    Abstract: The effect of fertilizer with different anions on the physiological and chemical characteristics of solar greenhouse soll are studied.The results show that compared with CK.the fertilizer with N0-3、SO2-4and Cl can raise the Ec and decrease the pH value of soil.The higher the fertilization level is,the higher the degree of increase or decrease is.The influential sequence on soil is Cl->S02-4 >N0-3 .Fertilizer with Cl-iS beneficial to the accumulation of available N,P and K in soil.SO2-4 decreases the content of available N.Available Fe content increases with the enhancement of fertilization leve1.the kinds of anion and fertilization level have no effect on the content of available Mn in soil.

     

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