采用大区对比试验方式，探讨了播种量对杂交早籼稻株两优831作直播栽培产量的影响。结果表明，株两优831产量随播种量的增加呈现先增加后减少的趋势，22.5 kg/hm2是其适宜的播种量。

Effects of sowing rate on yield of direct seeding rice Zhuliangyou 831 was explored in this paper by regional contrast test. The results showed that the yield of Zhuliangyou 831 was increased first and then decreased with the increase of sowing rate, 22.5 kg/hm2 is the suitable sowing rate.