通过不同直播密度试验 ,研究赣油 14号种植密度与群体产量及产量结构的关系。结果表明 :在本试验条件下 ,赣油 14号在密度为 18万株 /hm2 时产量最高 ,达 2 2 2 7.5kg/hm2 ;随着种植密度的增大 ,单位面积有效角果数与群体产量变化较大 ;均表现先增后减 ,变异系数分别为 17.70 %和 3 .40 % ,每角粒数与千粒重变化较小 ,变异系数分别为 1.3 7%和 1.44 %。 Through different direct seeding density experiments, the relationship between planting density and population yield and yield structure of Ganyu No.14 was studied. The results showed that under the conditions of this experiment, the highest yield of GanYou 14 at the density of 180 000 plants / hm2 was 22 22.5 kg / hm2. With the increase of planting density, the number of effective pods per unit area and the population The results showed that the variation of yield and grain weight per plant were all higher than those of the control. The coefficients of variation were firstly increased and then decreased, the variation coefficients were 17.70% and 3.40% respectively.