| 本田期土壤水分对旱育秧水稻产量形成的影响 |
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| 引用本文： | 杨建昌,刘立军,王志琴,郎有忠,朱庆森.本田期土壤水分对旱育秧水稻产量形成的影响[J].扬州大学学报(农业与生命科学版),1998(1). |
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| 作者姓名： | 杨建昌 刘立军 王志琴 郎有忠 朱庆森 |
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| 作者单位： | 江苏农学院农学系 |
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| 基金项目： | 农业部“八五”重点资助 |
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| 摘 要： | 旱育秧移栽后有明显的分蘖和生长优势，尤其在节水灌溉或低土壤水分条件下，旱育秧有效穗数多、干物质累积量高、抽穗后的光合势大，较水育秧显著增产。但在土壤水分充足或常规灌溉条件下，旱育秧分蘖成穗率低、有效穗数少，较水育秧增产幅度小。表明旱育秧配合本田期节水灌溉，其增产潜力较大。
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| 关 键 词： | 水稻 旱育秧 土壤水分 产量 |
EFFECTS OF SOIL MOISTURE IN PADDY FIELD ON THE YIELD FORMATION OF DYR RAISED RICE SEEDLINGS |
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| Yang Jianchang,Liu Lijun,Wang Zhiqin,Lang Youzhong,Zhu Qingsen.EFFECTS OF SOIL MOISTURE IN PADDY FIELD ON THE YIELD FORMATION OF DYR RAISED RICE SEEDLINGS[J].Journal of Yangzhou University:Agricultural and Life Science Edition,1998(1). |
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| Authors: | Yang Jianchang Liu Lijun Wang Zhiqin Lang Youzhong Zhu Qingsen |
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| Abstract: | The dry raised seedlings (D RSs) had obvious superiority in tillering and growth after transplanting Especially under the condition of water saving irrigation or low soil moisture, D RSs had more effective tillers, higher dry matter accumulation, larger photosynthetic potential after heading, and higher grain yield, compared with the moist raised seedlings (M RSs) However, D RSs had low ratio of panicles to tillers and fewer effective panicles, and had no significant difference with M RSs in terms of grain yield under the condition of conventional irrigation or adequate soil moisture It is suggested that D RSs have greater grain increasing potential if water saving irrigation is adopted in paddy field |
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| Keywords: | Rice dry raised seedlings soil moisture grain yield |
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