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高粱是我省主要粮食作物之一,有着悠久的栽培历史.种植面积占粮食作物面积1/5左右,其单产的高低对粮食总产量有举足轻重的影响.随着科学种田水平的提高和高粱杂交种的应用,高粱单产提高很快,大面积亩产千斤上下的地块屡屡出现.但是,近几年来,高梁单产上升的幅度很小,有的地区、社队,单产还有下降的趋势.弄清影响高梁单产的原因,并在生产实践中加以解决,是高梁高产栽培中迫切需要研究的课题.
Sorghum is one of the main grain crops in our province and has a long history of cultivation. The area under cultivation accounts for about 1/5 of the total area of grain crops and its yield per unit area has a decisive influence on the total grain output. With the improvement of scientific farming and sorghum hybridization In recent years, the yield of sorghum has risen to a very small extent, and in some areas, there has been a downward trend in the commune and commune yield. To clarify the reasons that affect the yield of sorghum and solve them in the production practice is an urgent topic to be studied in high yielding cultivation of sorghum.