豆饼与化肥配施对土壤氮素供应与烤烟品质的影响

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为研究有机肥与化肥配施对土壤氮素供应和烟叶质量的影响,建立合理的有机肥与化肥配施技术。于2013-2014年在潍坊市安丘逄家庄烟叶农场,以烤烟品种NC55为材料,研究了豆饼与化肥配施对土壤氮素转化、氮转化酶活性及烟叶品质的影响。主要结果如下:1.豆饼与化肥配施对植烟土壤无机氮素及氮素相关酶类活性的影响于2013年进行,结果表明:土壤中无机氮素含量在烤烟移栽后第50天达到最大值,此期30%饼肥+70%化肥的处理土壤中无机氮素含量高于其他处理;单施化肥的处理土壤蔗糖酶、脲酶、硝酸还原酶低于化肥与豆饼配施
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