辽北地区耕地土壤养分状况变化及培肥对策  

The variation of nutrient status and countermeasure of fertilizing about soil nutrient in northern part of Liaoning

作　　者：郭淑鲜[1] 王福军[1] 杨建和[1] 贾冬梅[1] 杨子慧[1] 

机构地区：[1]开原市农业技术推广中心,辽宁铁岭112300

出　　处：《垦殖与稻作》2006年第B06期64-65,85,共3页Reclaiming and Rice Cultivation

摘　　要：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。Check analysis on 747 samples from seven counties （city） of tieling city, the result indicated that soil organic matter and nitrogen content were 1.58% and 0.089%, it located medium and missing condition, and missing area was also increase. The contents of rapidly available phosphorus was 13.8 mg/kg in zverage, it increase obviously and achieve medium range and less lack, at the same time there was some area achieve luxuriant condition. The contents of quickacting potassium was 114 mg/kg, it decline obviously and large acreage located medium and less lack condition, the less lack condition is increasing vast scale. Hereby it proposed relevant advice to fertilize.

关 键 词：土壤养分现状 施肥 对策 

分 类 号：S153.6[农业科学—土壤学]