【摘 要】
：
A field experiment was carried out to study nutrient balance among N,P,K and Mg in potato cultivation on an acid purple soil in Chongqing,China,The experiment i
【机 构】
：
SouthwestAgriculturalUniversity,HokkaidoUniversity
【基金项目】
：
supported bythe SCPA, FRANCE.
论文部分内容阅读
A field experiment was carried out to study nutrient balance among N,P,K and Mg in potato cultivation on an acid purple soil in Chongqing,China,The experiment included 8 treatments with equal P rate of 120 kg P2O5 hm^-2 :N0K2,N1K2,NK2K2,N3K2,N2K0,N2K1,N2K
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