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| Characteristics of Growth and Yield Formation of Rice in Rice-Fish Farming System | |
| 作者姓名： | YANG Yong ZHANG Hong-cheng HU Xiao-jun DAI Qi-gen ZHANG Yong-jiang |
| 作者单位： | [1]Agricultural Information Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China [2]College of Agronomy, Yangzhou University, Yangzhou 225009, P.R. China [3]Agricultural Bureau of Xinghua of Jiangsu, Xinghua 225700, P.R. China |
| 基金项目： | The research was financially supported by the Scientech Research Project of National 10th Five-Year Plan of China （2002BA516A14） and 10th Five-Year Plan Scientech Research Project of Jiangsu Province of China （BE2001330）. |
| 摘 要： | By using single rice cultivation as a control, the effect of rice-fish culture on growth dynamic, plant type and yield formation of rice was studied. The results showed as follows： rice-fish culture improved the physical-chemical properties of arable layer soil of paddy field, extended growth period of rice, increased dry matter and LAI of different growth stages, improved three top leaves area, deterred the degeneration of leaves function, increased the diameter of stem, promoted the growth of roots and the formation of roots in the extended stem. At the same time, rice-fish culture extended the length of basal internodes, increased the number of internodes, uplifted the gravity of plant, and depressed the root vigor. For the grain yield and yield structure office, rice-fish culture decreased ear/tillering ratio, spikelet/panicle and seed set percentage, increased grain weight. If variety choice and cultivation technology were controlled appropriately, rice-fish culture could increase the effective panicles and improve grain yield of rice. |
| 关 键 词： | 水稻 水产养殖 生长速度 农艺性状 |
Characteristics of Growth and Yield Formation of Rice in Rice-Fish Farming System |
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| YANG Yong ZHANG Hong-cheng HU Xiao-jun DAI Qi-gen ZHANG Yong-jiang.Characteristics of Growth and Yield Formation of Rice in Rice-Fish Farming System[J].Agricultural Sciences in China,2006,5(2):103-110. | |
| Authors: | YANG Yong ZHANG Hong-cheng HU Xiao-jun DAI Qi-gen ZHANG Yong-jiang |
| Institution: | 1. Agricultural Information Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China;College of Agronomy, Yangzhou University, Yangzhou 225009, P.R. China 2. College of Agronomy, Yangzhou University, Yangzhou 225009, P.R. China 3. Agricultural Bureau of Xinghua of Jiangsu, Xinghua 225700, P.R. China |
| Abstract: | By using single rice cultivation as a control, the effect of rice-fish culture on growth dynamic, plant type and yield formation of rice was studied. The results showed as follows: rice-fish culture improved the physical-chemical properties of arable layer soil of paddy field, extended growth period of rice, increased dry matter and LAI of different growth stages, improved three top leaves area, deterred the degeneration of leaves function, increased the diameter of stem, promoted the growth of roots and the formation of roots in the extended stem. At the same time, rice-fish culture extended the length of basal internodes, increased the number of internodes, uplifted the gravity of plant, and depressed the root vigor. For the grain yield and yield structure of rice, rice-fish culture decreased ear/tillering ratio, spikelet/panicle and seed set percentage, increased grain weight. If variety choice and cultivation technology were controlled appropriately, rice-fish culture could increase the effective panicles and improve grain yield of rice. |
| Keywords: | rice-fish culture rice characteristics of growth yield formation |
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