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为弄清不同种植密度度对“红缨子”高粱生育及产量的影响,采用田间试验方法,对其进行了试验研究。结果表明:不同种植密度对“红缨子”拔节期、抽穗期、成熟期、茎粗、株高、穗长、单穗粒重、千粒重及产量都有不同程度的影响,种植密度为112 500株/hm2时,平均产量达4 075.2 kg/hm2,在各处理中最高。金沙县种植“红缨子”高粱品种的适合密度为112 500～120 000株/hm2。
In order to understand the effects of different planting densities on the growth and yield of “Red Tassel” sorghum, field experiments were conducted to study the effects of different planting densities. The results showed that different planting densities had different degrees of influence on “tassel ” at jointing stage, heading stage, maturity, stem diameter, plant height, spike length, grain weight per spike, 1000-grain weight and yield, 500 plants / hm2, the average yield of 4 075.2 kg / hm2, the highest in all treatments. The suitable density of planting “Red tassel” sorghum varieties in Jinsha is 112 500 ~ 120 000 plants / hm 2.