| 降镉剂和水分管理对早稻产量及稻米镉污染的阻控效果 |
| |
| 引用本文： | 龚浩如.降镉剂和水分管理对早稻产量及稻米镉污染的阻控效果[J].湖南农业科学,2017(8). |
| |
| 作者姓名： | 龚浩如 |
| |
| 作者单位： | 湖南省水稻研究所,湖南 长沙,410125 |
| |
| 基金项目： | 国家农业部、财政部专项 |
| |
| 摘 要： | 为了探明降镉剂和水分管理对稻米镉污染的阻控效果,采用大田试验,研究了HR降镉剂和石灰对早稻产量及其构成要素的影响,并对其降低水稻植株和稻米镉含量的效果进行了分析。结果显示:淹水灌溉下糙米及茎叶镉含量较常规灌溉分别低52.5%和37.1%;2种土壤修复剂能极显著减少稻米及茎叶镉含量,且HR降镉剂降镉效果优于石灰和空白对照;不同处理能促进水稻产量提高,增产幅度在2.5%~10.2%。综合考虑稻米镉含量及产量情况,认为A_1B_2和A_2B_2处理稻米镉含量低且产量水平较高。
|
| 关 键 词： | 水稻 镉污染 降镉剂 产量 |
Effects of Cadmium-Reducing Agent and Water Management on Early Rice Yield and Mitigation of Cadmium in Rice |
| |
| GONG Hao-ru.Effects of Cadmium-Reducing Agent and Water Management on Early Rice Yield and Mitigation of Cadmium in Rice[J].Hunan Agricultural Sciences,2017(8). |
| |
| Authors: | GONG Hao-ru |
| |
| Abstract: | In order to determine the control effects of cadmium-reducing agent HR and water management on cadmium pollution in brown rice, this study was conducted to investigate the effects on the early rice yield and its constituent elements and on reducing cadmium content in rice plants and rice grains by field experiment with the HR and lime. The results showed that the contents of cadmium in brown rice and in stem and leaf under submerged irrigation were 52.5% and 37.1% lower than under normal irrigation respectively; the two kinds of soil amendment could highly significantly reduce cadmium content in brown rice and stem and leaf, and the cadmium-reducing effect of the HR is better than that of lime and the CK; and different treatments could promote the increase of rice yield by 2.5% to 10.2%. Considering the cadmium content and yield of rice, the treatments A1B2 and A2B2 were known to be low in the content of cadmium and high in the yield level. |
| |
| Keywords: | rice cadmium pollution cadmium-reducing agent yield |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
