水稻直播栽培试验研究

Experiment of Rice Direct Sowing

水稻直播试验表明:哈98-86、龙选9707、空育131是比较好的直播水稻品种;5月11日前是获得高产的最佳播种期;空育131的播种量(芽种)控制在10kg/m^2为宜。提出了直播的灭草方法、注意事项及有待进一步解决的问题。水稻直播经济效益比插秧水稻增加收入100元/667m^2以上,说明水稻直播在北方稻区是可行的。

Experiment of rice direct sowing showed, the strains: Ha 98-86, Longxuan 9707, Kongyu 131 are the better varieties for direct sowing, it is the better time for highest production before May 11; the amount of sowing Kongyu 131 had better be controlled at 10 kg/m2. Moreover, state the means of weeds control, the noticed items and some problems are further solved. The profit of direct sowing is higher above 100 yuan/667 m2 than that of rice transplant, and shows rice direct sowing is feasible in North rice areas.