期刊论文

Effects of Intermittent Irrigation at Different Growth Stages on Yield Components and Cadmium Accumulation of Double-cropping Rice in Cd-contaminated Paddy Field

中文

水土保持学报

1009-2242

2019

33

5

364-368

10.13870/j.cnki.stbcxb.2019.05.053

2018YFD0301005:国家重点研发计划 2017YFD0301500:国家重点研发计划

本校为第一机构

为给镉污染稻区水稻合理灌溉提供理论与技术参考,通过盆栽试验研究了不同生育阶段间歇灌溉对双季稻产量构成与镉累积的影响。结果表明:(1)2季水稻总产以全生育期淹水灌溉处理最高,其次是全生育期间歇灌溉与齐穗至灌浆中期间歇灌溉处理,孕穗至齐穗期间歇灌溉处理产量显著降低;全生育期淹水灌溉处理有利于提高结实率,而全生育期间歇灌溉与分蘖至孕穗间歇灌溉处理有利于提高有效穗数。 (2)灌水方式显著影响水稻各器官成熟期镉含量,其中全生育期间歇灌溉有显著提高效果,而全生育期淹水灌溉有降低效应。孕穗至齐穗、齐穗至灌浆中期间歇灌溉处理早、晚稻籽粒镉含量显著低于其他生育阶段间歇灌溉处理。...

To provide the theoretical and technical references for rational irrigation of rice in cadmium (Cd) polluted rice area,effects of intermittent irrigation at different growth stages on yield component and Cd accumulation of double-cropping rice were studied by pot experiment.The results showed that:(1)The total yield of double-cropping rice in the treatment of flooded irrigation in whole growth duration(FWD)was the highest,and that of treatment of intermittent irrigation in whole growth duration(IWD)and intermittent irrigation at full heading to mid-filling stage(IHM)followed,and that of treatm...