机插水稻生长发育规律及其高产栽培调控机理

被引量 : 8次 | 上传用户：a442697259

【摘要】

：

本文以武香粳9号密度试验、肥料运筹试验、密度与肥料运筹互作试验和武运粳7号高产栽培技术集成试验为基础,研究了机插水稻分蘖发生与成穗的规律、氮素吸收与利用特点及其高产栽培调控技术。主要的研究结果如下:(1)机插水稻分蘖主要发生在4/0、5/0、6/0、7/0等一次分蘖和少量4/1二次分蘖等中位蘖位上,成穗率也主要集中在这些蘖位,同时随着每穴栽插苗数的增加,分蘖的发生与成穗率都下降。与机插秧苗手栽相比

【作者】

：

袁奇

【机构】

：

南京农业大学

【发表日期】

：

2007年08期

【关键词】

：

机插水稻分蘖成穗氮肥运筹氮素吸收高产栽培

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机插水稻生长发育规律及其高产栽培调控机理

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