摘要
研究不同小麦品种收获后土壤中硝态氮残留量的差异、及其影响因素.对12个冬小麦品种的研究证明,在低氮和高氮两个施氮处理中,硝态氮残留量均表现明显的品种间差异.籽粒产量高的品种由于吸氮能力强,其硝态氮残留量低.由此可通过选育高效吸收氮素的品种,达到提高产量和保护环境的目的.
The amounts of residual nitrate were significanly different among the 12 wheat genotypes at low N and high N treatment.Genotype 9204 2 8 40 had the lowest residual nitrate at low N treatment,while Lofflin 10 and Xiaoyan 54 had the lowest residual nitrate at high N treatment.These three genotypes are also high yielding.The result indicated that by selecting genotypes with high nitrogen upatake efficiency,high yields can gain and environment can be pretected..
出处
《环境科学学报》
CAS
CSCD
北大核心
2000年第2期251-253,共3页
Acta Scientiae Circumstantiae
基金
国家自然科学基金!重大项目 (3 9790 10 0 )
