Supported by Major Program of Scientific and Technological Bureau of Heilongjiang Province(GA06C101);Heilongjiang Postdoctoral Fund(LBH-Z13189);Heilongjiang Scientific and Technological Innovation Program(CX2012Z13)~~
In field experiments, the effect of nitrogen application on 15N absorption and distribution of Longjing 31 and Kongyu 131 rice varieties was studied by ^15N isotopic trace technique. The results showed that nitrogen a...