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The variation of nutrient status and countermeasure of fertilizing about soil nutrient in northern part of Liaoning
Pages: 64-65,85
Year: Issue:  S1
Journal: Reclaiming and Rice Cultivation

Keyword:  土壤养分现状 施肥 对策;
Abstract: 对辽宁省铁岭市7个县(市)区55万hm2耕地的747个土样化验分析,结果表明,土壤有机质与全N平均含量分别为1.58%和0.089%,处于中等和较缺状况,较缺面积均有所增加。速效P含量平均为13.8mg/kg,明显增加,达到中等和略缺状况,并且有一定面积达到较丰富状况。速效K含量平均为114mg/kg,明显下降,大面积处于中等和较缺状况,而且较缺面积大辐度增加。据此提出了若干相应的施肥建议。
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