Optimization of Field Arrangement of Doublecropping Glutinous Sorghum and Soybean Intercropping Pattern

双季糯高粱间作大豆田间配置方式优化（英文）

In order to reduce successive cropping obstacles, optimize field arrange-ment of double-cropping of sorghum and soybean and improve yields, the research used Guojiaohong No.1 and Nandou No.12 as raw materials to explore the effects of different field arrangements on yield and benefits of double-cropping. The results indicated that with the double-cropping, both of gross yield and output value were higher compared with single-cropping treatments; yield, thousand-grain weight, the weight of grain per ear, and ear length of the 1st-season glutinous sorghum de-creased as compartment width grew, and of regenerated sorghum and soybean changed from increasing to decreasing. Specifical y, with double-cropping system, gross yield of glutinous sorghum reached the highest at 8 352.9 kg/hm2 with com-partment width of 1.7 m and soybean yield the highest at 1 888.95 kg/hm2 with compartment width of 1.8 m. Additional y, gross output value and net incomes achieved the highest at 47 293.92 yuan/hm2 and 29 976.42 kg/hm2 for the two crops, with compartment width of 1.7 m, fol owed by the treatment with compart-ment width of 1.8 m. In general, the treatments with compartment widths of 1.7 and 1.8 m are optimal field arrangement. Additional y, output-to-input ratio was the high-est in the treatment with single-cropping glutinous sorghum and the least in the treatment with single-cropping soybeans.

为了减轻双季糯高粱连作障碍,优化双季糯高粱、大豆田间配置结构,提高两季作物产量效益,以常规双季糯高粱‘国窖红1号’、‘南豆12’为试验材料,研究不同田间配置方式对糯高粱、大豆复合种植、净作模式下产量、效益的影响。结果表明:复种模式下作物总产量、总产值均高于双季糯高粱、大豆净作模式,头季糯高粱产量、千粒重、穗粒重和穗长随厢宽的增加而降低,再生季糯高粱、大豆表现为先增后减的趋势;双季糯高粱总产量最高的为1.7 m开厢处理,达835.29 kg/hm2,大豆产量最高为1.8 m开厢处理,达1 888.95 kg/hm2,两作物总产值、净收益以1.7 m开厢处理最高,分别为47 293.92、2 997.642 kg/hm2,其次为1.8 m开厢处理,以上两处理为最优田间配置方式。产投比以净作双季糯高粱最大。