杂交水稻免耕无盘抛秧配套技术优化研究
XianDai NongYe KeJi(2017)
Abstract
为探索水稻无盘免耕抛秧高产栽培综合农艺措施,采用四元二次回归正交旋转组合设计,以种植密度(X1)、施氮量(X2)、施磷量(X3)、施钾量(X4)为参试因子,优化出在免耕无盘抛秧栽培条件下稻谷产量在11100 kg/hm2以上的农艺措施方案:种植密度17.46万~18.54万株/hm2,施氮肥(纯N)175.350~184.651 kg/hm2、磷肥(P2O5)132.15~143.85 kg/hm2、钾肥(K2O)156.0~175.2 kg/hm2.
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