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| 水稻强化栽培的适宜秧龄和栽植密度研究 | |
| 引用本文： | 龙旭,马均,许凤英,王贺正,黄清龙,袁志祥. 水稻强化栽培的适宜秧龄和栽植密度研究[J]. 四川农业大学学报, 2005, 23(3): 368-373 |
| 作者姓名： | 龙旭 马均 许凤英 王贺正 黄清龙 袁志祥 |
| 作者单位： | 1. 四川农业大学,水稻研究所,四川,温江,611130;成都农业科技职业学院,四川,温江,611130 2. 四川农业大学,水稻研究所,四川,温江,611130 3. 成都农业科技职业学院,四川,温江,611130 |
| 基金项目： | 国家粮食丰产科技工程（2004BA520A05）;农业部结构调整重大专项（2003-01-03B）;四川省育种攻关后补助. |
| 摘 要： | 以杂交稻协优527为材料,研究了在强化栽培条件下适宜的移栽叶龄和栽植密度。结果表明不同移栽叶龄(2~5叶龄)对其产量的影响很小,在强化栽培应用中,可以采用4~5叶龄的带蘖秧苗移栽;在本试验范围内,强化栽培的适宜栽培密度为9万穴/hm2~13·5万穴/hm2,此时,后期光合产物积累多,穗、粒结构合理,产量可达最高。 |
| 关 键 词： | 水稻强化栽培 秧龄 栽植密度 产量 |
| 文章编号： | 1000-2650（2005）03-0368-06 |
| 收稿时间： | 2005-11-29 |
Study on the Seedling-age and Planting Density in SRI |
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| LONG Xu,MA Jun,XU Feng-ying,WANG He-zheng,HUANG Qing-long,YUAN Zhi-xiang. Study on the Seedling-age and Planting Density in SRI[J]. Journal of Sichuan Agricultural University, 2005, 23(3): 368-373 | |
| Authors: | LONG Xu MA Jun XU Feng-ying WANG He-zheng HUANG Qing-long YUAN Zhi-xiang |
| Affiliation: | 1. Rice Research Institute, Sichuan Agricultural University, Wenjiang 611130, Sichuan, China; 2. Chengdu Vocainal College of Agricultural Science and Technology, Wenjiang 611130, Sichuan, China |
| Abstract: | The seedling-age and planting density in System of Rice Intensification (SRI) were studied with Xieyou 527, a hybrid rice cultivar. The result indicates that no effect of seedling-ages on grain yield is found. In production practice of SRI, the selection of seedling-ages is 2 to 5 leaf-age. The suitable planting density is 9×104 plant/hm2 to 13.5×104 plant/hm2 and the grain yield is the highest. |
| Keywords: | System of Rice Intensification (SRI) seedling-age planting density grain yield |
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