粳稻镇稻10号机插精确定量高产栽培技术
Jiangsu Agricultural Sciences(2008)
Abstract
镇稻10号产量潜力大,株型较紧凑,长势较旺,分蘖力较强,耐肥抗倒,成穗率高,后期熟相好,单穗重优势明显。机插秧产量700~750 kg/667m2的穗粒结构指标为有效穗21万~23万/667m2,每穗总粒130~135粒,结实率93%以上,千粒重27~28 g。其栽培技术,在培育壮秧的基础上,建立适宜的群体起点,基本苗4万~5万/667m2,高峰苗28万~30万/667m2。总施氮量20~22 kg/667m2,前、中、后期比例为5∶1∶4,氮、磷、钾之比为1∶0.4∶0.6~0.8。搁田始期不宜过早,掌握在达等穗苗80%左右时进行。
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