期刊论文

Effect of Reducing Nitrogen and Increasing Density in the Main Season on Yield Formation Characteristics of Ratooning Rice

中文

华北农学报

1000-7091

2024

39

4

170-178

10.7668/hbnxb.20194822

2023NK2004:湖南省重点研发计划项目 2023JJ60227:湖南省自然科学基金部门联合基金项目 2022JJ30303:湖南省自然科学基金面上项目

本校为第一机构

为探明减氮增密对再生稻产量形成特性的影响,以杂交稻品种创两优669为材料,在3个施氮水平(N1:180 kg/hm2;N2:153 kg/hm2;N3:126 kg/hm展开更多 为探明减氮增密对再生稻产量形成特性的影响,以杂交稻品种创两优669为材料,在3个施氮水平(N1:180 kg/hm2;N2:153 kg/hm2;N3:126 kg/hm2)与2个株行距(M1:20.0 cm×16.7 cm;M2:16.7 cm×16.7 cm)条件下开展了2 a大田试验。结果表明,减氮降低再生稻叶面积指数(LAI),但合理减氮范围内增密可提高主季和再生季的LAI,互作处理N1M2与N2M2的LAI较高;减氮和增密均降低再生稻叶片SPAD值,但密度影响不显著;减氮导致干物质质量下降,而增密可显著提高干物质质量,互作处...

In order to investigate the effect of reducing nitrogen and increasing density on the yield formation characteristics of ratooning rice,hybrid rice variety Chuangliangyou 669 was used as the material to conduct two years of field experiments under conditions of three ni...MORE In order to investigate the effect of reducing nitrogen and increasing density on the yield formation characteristics of ratooning rice,hybrid rice variety Chuangliangyou 669 was used as the material to conduct two years of field experiments under conditions of three nitr...