杂交粳稻‘花优14’直播栽培关键技术研究

摘要

The field experiments with the main recommended hybrid keng rice ‘Huayou 14’were carried out in Fengxian District under different seeding dates,seed rates and nitrogen fertilizer rates. The results showed that for ‘Huayou 14 ’ as artificial direct seeding single-crop late rice,the appropriate seeding date,seed rate,total nitrogen fertilizer rate,and ratio of base dressing plus fertilization for tillering to fertilization for heading were respectively June 8,37.5 kg/hm2 ,270 kg/hm2 , and 8∶2-9∶1 .%对奉贤区主推杂交粳稻组合‘花优14’进行播期、播量、总氮量及肥料运筹试验。结果表明：‘花优14’作单季晚稻人工直播栽培，以播期6月8日、播量37．5 kg/hm2、总氮量270 kg/hm2、基蘖肥与穗肥比8∶2～9∶1为宜。