| 免耕对水稻根系活力和产量性状的影响 |
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| 作者姓名： | 黄国勤 黄小洋 张兆飞 刘隆旺 章秀福 高旺盛 |
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| 作者单位： | 江西农业大学生态科学研究中心 江西南昌330045
(黄国勤,黄小洋,张兆飞,刘隆旺),中国水稻研究所 浙江杭州310006
(章秀福),中国农业大学 北京100094(高旺盛) |
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| 基金项目： | 国家重大科技专项"粮食丰产科技工程"子课题(2004BA520A14-14)研究内容之一. |
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| 摘 要： | 对早稻进行了免耕与常耕栽培对比试验。研究结果表明:与常耕栽培水稻相比,免耕水稻,根系活力高7.4%~34.9%,各生育期的干物质占黄熟期干物质之比高。有效穗数、每穗实粒数、千粒重和实际产量分别高1.1%、5.1%、0.6%和10.0%。产量与根系活力和干物质积累的相关分别达到0.9和0.87以上。
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| 关 键 词： | 免耕 根系活力 产量 相关系数 |
Effect of No-tillage on the Root Activity and Yield Characters in Rice |
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| Authors: | Huang Guoqin Huang Xiaoyang Zhang Zhaofei Liu Longwang Zhang Xiufu Gao Wangsheng |
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| Institution: | (1The Research Center of Ecological Science Jiangxi Agricultural University, Nanchang 330045; 2 China National Rice Research Institute, Hangzhou, Zhejiang, 310006; 3 China Agricultural University, Beijing, 100094) |
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| Abstract: | The comparative experiments were conducted to study the effect of different tillage methods in root activities and yield characters. The results showed that the root activity of rice plants in the no-tillage treatment increased by 7.4%~34.9%, the ratio of dry-matter in different stages to that of yellow maturity stage was bigger, the effective spikes, filled grains per spike, 1000-grain weight and actual yield were increased separately by 1.1%, 5.1%, 0.6% and 10% than early rice cultivated in conventional paddy. The correlation coefficient between the activity of root system of early rice, dry-matter and the yield were bigger individually than 0.9 and 0.87. |
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| Keywords: | No tillage Activity of root system Yield Correlation coefficient |
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