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为了明确南方双季糯高粱与大豆间作模式下最优群体配置结构,以常规双季糯高粱国窖红1号和大豆品种南豆12为试验材料,比较分析糯高粱和大豆不同密度配置对作物主要农艺性状、产量构成因素、产量及效益的影响。结果表明:同一大豆密度下,随糯高粱密度的增加,两季糯高粱株高均增加,穗长、千粒重、穗粒重降低,产量表现为先增后减;随两作物密度的增加,大豆株高、底荚高度增加,有效分枝数、单株有效荚数、单株粒数和百粒重降低,产量先增加后降低;糯高粱总产以高粱9万株·hm-2、大豆9万株·hm-2密度处理最高,达8 701.39 kg·hm-2;大豆产量以糯高粱7.5万株·hm-2、大豆10.5万株·hm-2密度处理最高,达1 875 kg·hm-2;两季作物总产量、总产值、净收益、产投比均以糯高粱9万株·hm-2、大豆密度10.5万株·hm-2密度处理最高,分别为10 097.22 kg·hm-2、46 511.1元·hm-2、29 193.6 kg·hm-2、2.69。双季糯高粱、大豆1.8 m开厢,“2∶2”间作模式下,国窖红1号、南豆12密度分别为9万和12万株·hm-2是常规双季糯高粱、大豆高产高效最优群体配置结构。
In order to clarify the optimal colony structure of double-season glutinous sorghum and soybean intercropping system in southern China, the conventional double-season glutinous sorghum Guojiaohong 1 and soybean variety Nandou 12 were used as experimental materials to compare the different density configurations of glutinous sorghum and soybean. Main agronomic traits, yield components, yield and benefits. The results showed that with the increase of the density of waxy sorghum, the plant height of two sorghum sorghum varieties increased with the increase of the density of the sorghum. The spike length, 1000-grain weight and spike weight decreased with the increase of the density of the sorghum. The yield of the sorghum increased first and then decreased. The plant height, the height of pod increased, the number of effective branches, the effective pods per plant, the number of grains per plant and the weight of 100 grains decreased while the yield increased first and then decreased. The total output of sorghum was 90,000 hm-2 The density of 90,000 plants · hm-2 was the highest, reaching 8 701.39 kg · hm-2. The highest yield of soybean was 7575 plants · hm-2 and 105,000 plants · hm-2, hm-2. The total output, net output, net income and production ratio of the two seasons were the highest with the density of 90 000 hm-2 and the density of 105 000 hm-2, respectively, of 10 097.22 kg · hm-2,46 511.1 yuan · hm-2,29 193.6 kg · hm-2,2.69. Double-season glutinous sorghum, soybean 1.8 m open box, “2: 2 ” intercropping mode, the country pit cellar Red 1, South bean density of 12 and 90 000 respectively hm-2 is a conventional double quinoa sorghum , Soybean high yield and efficient optimal population configuration structure.