| 水稻旱育抛秧高产特征及其机制的数值模拟研究 |
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| 引用本文： | 何海燕,管绍好.水稻旱育抛秧高产特征及其机制的数值模拟研究[J].南京气象学院学报,1999,22(1):39-46. |
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| 作者姓名： | 何海燕 管绍好 |
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| 作者单位： | [1]南京气象学院环境科学系 [2]南京市盘城镇农办 |
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| 摘 要： | 用１９９６、１９９７年的分期播种田间试验资料，建立进育抛秧发育期模型和产量构成因子模型，包括茎蘖动态模型、千粒重增长模型，每穗实粒数模型，分析高产特征及机制。结果指出，水稻抛秧移栽与手插移栽相比，移栽迟滞期短，群体茎蘖２数粳稻高１６％，汕稻高２３％；千粒重，粳稻低１％，灿稻高９％；每穗实数无区别；部产量，粳稻高１６％，灿稻高９％。抛栽秧苗随机均匀分布，入土深度较浅，从而营造了合理的群体结构提高了产
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| 关 键 词： | 旱育抛秧 数值模拟 移栽迟滞期 水稻 产量 |
NUMERICAL SIMULATION OF HIGH YIELD FEATURES AND MECHANISMS FOR DRY BRED AND THROWING TRANSPLANTED RICE |
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| HE Hai yan,LI Xiang ge,GU Xian yao,JING Yuan shu.NUMERICAL SIMULATION OF HIGH YIELD FEATURES AND MECHANISMS FOR DRY BRED AND THROWING TRANSPLANTED RICE[J].Journal of Nanjing Institute of Meteorology,1999,22(1):39-46. |
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| Authors: | HE Hai yan LI Xiang ge GU Xian yao JING Yuan shu |
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| Abstract: | On the basis of field experiment in 1996 and 1997, both a development date model and a yield model were established for dry bred and throwing transplanted rice. The latter was composed of sub models for dynamic tillers, dry matter, fruitful grain number per ear. High yield features and mechanisms of the rice was analyzed. Compared with hand transplanted rice, results showed that the throwing transplanted rice had a shorter lag phase, more tillers ( with 16% more for hsien and 23% more for hybrid hsien species respectively), greater thousand grain weight only for hsien species, and higher yields (with 16% higher for hsien and 9% higher for hsien species respectively). Rice seedlings transplanted by throwing were distributed at random and shallow rooted so that they could build a good population structure, leading to higher output. Finally, meteorological problems for throwing transplanted rice were mentioned. |
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| Keywords: | dry bred and throwing transplanted rice numerical simulation lay phase by transplanting |
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