以紫米稻品种‘粮田紫1号’为材料,研究了不同种植密度对紫米稻产量形成特性的影响。结果表明,粮田紫1号全生育期较长,达146 d,生物产量达10 t/hm~2以上,但经济产量仅3 t/hm~2左右;种植密度对紫米稻有效穗数、每穗粒数、结实率与产量均有较大影响,本试验中株行距20.0 cm×20.0 cm处理产量最高,可达3.63 t/hm~2。粮田紫1号高产栽培关键技术措施有待进一步研究与完善。 The effect of different planting densities on the yield formation characteristics of purple rice was studied using a purple rice variety ’Nongtian Zi No.1’ as material. The results showed that the whole growth period of grain field violet 1 was longer than that of 146 days, and the biological yield reached 10 t / hm ~ 2, but the economic yield was only 3 t / hm ~ 2. , Grain number per spike, seed setting rate and yield all had great effects. In this experiment, the row spacing of 20.0 cm × 20.0 cm was the highest, reaching 3.63 t / hm ~ 2. Grain field purple 1 high yield cultivation of key technical measures to be further studied and improved.