In order to investigate the effects of reducing nitrogen and increasing density on yield and cadmium accumulation and transportation of hybrid rice,using Chuangliangyou 669 as the materials,three nitrogen levels(N1180 kg/hm2,N2153 kg/hm2,N3126 kg/h...MORE In order to investigate the effects of reducing nitrogen and increasing density on yield and cadmium accumulation and transportation of hybrid rice,using Chuangliangyou 669 as the materials,three nitrogen levels(N1180 kg/hm2,N2153 kg/hm2,N3126 kg/hm2)and two densities(M120.0 cm×16.7 cm,M216.7...