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9优418杂交中粳稻2005年首次在江苏省兴化市作为超高产品种试验示范,实收单产11037kg/hm2,最高单产11895kg/hm2。9优418超高产栽培的技术途径是稳定穗数、主攻大穗、扩库强源、抗逆防倒;具体措施为合理确定播期、精量稀播、扩行减苗、增施有机肥和磷钾肥、精确肥水运筹壮秆抗倒和综合防治病虫害。
9 You 418 hybrid japonica rice was first tested in 2005 in Xinghua City, Jiangsu Province as a super high-yielding variety. The yield per harvest was 11037kg / hm2 and the highest yield was 11895kg / hm2. Large spike, strong source of expansion library, anti-stress and anti-down; specific measures to determine a reasonable sowing date, the amount of thinning sowing, expanded seedling reduction, increase of organic fertilizer and phosphorus and potassium fertilizer, .