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为了确定高粱最佳的钾肥施用方式,以吉杂305号和吉杂87号高粱品种为试验材料,设计4个施钾肥处理(K0:不施钾;K1:基施钾120千克/公顷;K2:基施钾90千克/公顷+追施钾30千克/公顷;K3:基施钾60千克/公顷+追施钾60千克/公顷),探讨钾肥施用方式对高粱干物质积累及子粒产量的影响。结果表明,施用钾肥可提高高粱植株叶面积、干物质积累量、子粒淀
In order to determine the best way of applying K fertilizer to sorghum, four K-fertilizers (K0: no potassium applied; K1: 120 kg / : Basal application of potassium 90 kg / ha + topdressing potassium 30 kg / ha; K3: basal application of potassium 60 kg / ha + topdressing potassium 60 kg / ha) to investigate the effect of different K application modes on sorghum dry matter accumulation and grain yield . The results showed that the application of potassium fertilizer could improve the leaf area, dry matter accumulation,