鸡粪等有机肥料的养分释放及对土壤有效铜、锌、铁、锰含量的影响

赵明; 陈雪辉; 赵征宇; 蔡葵; 王正国

鸡粪等有机肥料的养分释放及对土壤有效铜、锌、铁、锰含量的影响

Releasing of N,P and K of organic fertilizers and their effects on the contents of available Cu, Zn,Fe and Mn in soil

摘要

摘要: 采用室内培养法研究鸡粪、牛粪和猪粪等畜禽有机肥料的矿化率和速效氮、磷、钾养分释放特性，并探讨施用有机肥料对土壤有效铜、锌、铁、锰含量的影响。结果表明，鸡粪、牛粪和猪粪等畜禽有机肥料当季(120d)有机碳矿化率分别为87.5%、71.9%和55.4%，碱解氮释放量分别为39.9%、20.6%和35.3%，速效磷释放量分别为24.6%、61.3%和34.8%，速效钾释放量分别为78.8%、36.8%和41.5%。供试条件下土壤有效铜、锰含量增加，但有效锌含量降低，施用鸡粪可使土壤有效铁含量增加，而施用牛粪和猪粪则使土壤有效铁含量降低。

Abstract: The mineralizing rates of the organic fertilizers of chook dung,cattle dung and pig dung and the releasing rates of the available N,P,K in them were studied with an incubation method in lab;moreover the effcts of the organic fertilizers on the contents of available Cu,Zn,Fe and Mn in soil were analyzed.The results show that the mineralizing rates of organic carbon in the above three organic fertilizers are 87.5%,71.9% and 55.4%,respectively after the application of organic fertilizers in soil for 120 days;the releasing rates of the alkaline hydrolyse N are 39.9%,20.6% and 35.3%,respectively;the releasing rates of available P and available K are 24.6%,61.3%,34.8% and 78.8%,36.8%,41.5%,respectively.Under the condition of experiment the application of chook dung,cattle dung and pig dung in soil can improve the contents of available Cu and Mn,but decrease the content of available Zn;the chicken dung increases the content of available Fe,but the cattle dung and pig dung have the negative effects.

HTML全文

参考文献(0)

施引文献

资源附件(0)