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笔者研究了不同覆膜方式及密度对大力士、大卡、B6-Q3种甜高粱品种生长发育及产量的影响。结果表明,在不同覆膜方式及密度下,5种甜高粱的株高、茎粗、茎叶比和产量均存在差异。综合分析,在种植密度为150000株/hm~2时,双垄沟全覆膜穴播方式可较好地协调整群与个体的生长,能获得较高产量。
The author studied the effects of different film mulching methods and planting density on the growth and yield of sweet sorghum varieties B6-Q3. The results showed that the plant height, stem diameter, stem-leaf ratio and yield of five kinds of sweet sorghum were different under different film mulching methods and densities. Comprehensive analysis shows that when the planting density is 150000 plants / hm ~ 2, the double-furrow full film-boring method can well coordinate the growth of the whole bunch and the individual, and can obtain higher yield.