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《Pratacultural Science》 2010-04
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Study on characters of soil nutrition of perennial pasture

DONG Wen-bin1,MA Yu-shou1,2,DONG Quan-min2,SUN Xiao-di2,SHI Jian-jun2,WANG Yan-long2,SHENG Li2(1.College of Pratacultural Science,Gansu Agricultural University,Gansu Lanzhou 730070,China;2.Institute of Grassland Science,Qinghai Academy of Animal and Veterinary Sciences,Qinghai Xining 810016,China)  
The contents of soil nutrients of different types and planting times of perennial sown pasture established in "grain for green" project were measured.The result showed that the contents of soil organic matter,total N,total P,available N and available P decreased with the soil depth,in which,the variation range of total P was small.Compared to the control,the contents of soil nutrients of pasture were significantly increased within 0 to 10 cm and 10 to 20 cm soil layers(P0.05) and the soil nutrients were mainly accumulated in surface layer.
【Fund】: 2008年度青海省重点科技攻关项目(2008-N-116)
【CateGory Index】: S158
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