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本试验旨在研究行距和密度对大豆新品种‘合农76’产量及品质的影响,明确不同行距下‘合农76’最佳密度。试验采用裂区设计,主区为行距,30 cm和45 cm;副区为密度,30、35、40、45、50万株/hm~2,用D1、D2、D3、D4、D5表示。结果表明,随着密度的增加产量呈先增加再降低的趋势,产量最高的密度处理为D2,即35万株/hm~2,且不倒伏;45 cm行距下最佳密度为38.00万株/hm~2时,产量为3289.79 kg/hm~2;30 cm行距下最佳密度为37.18万株/hm~2时,产量为3211.96 kg/hm~2;随着密度的增加,蛋白质和脂肪含量呈逐渐降低的趋势,蛋白质和脂肪最高的处理为D1。综上所述,‘合农76’在45 cm行距下最佳密度为38.00万株/hm~2,30 cm行距下最佳密度为37.18万株/hm~2。
The purpose of this experiment was to study the effects of row spacing and density on the yield and quality of a new soybean variety ’HeNong76’. The optimal density of ’HeNong76’ was determined under different row spacing. The design of the split zone was adopted in the experiment. The main zone was row spacing of 30 cm and 45 cm. The density of the subzone was 30, 35, 40, 45, 50 and 50 000 plants / hm ~ 2, which was denoted by D1, D2, D3, D4 and D5. The results showed that the yield increased first and then decreased with the increase of density. The highest yield density was D2 (350000 plants / hm2), and the yield was the highest. The optimal density at the distance of 45 cm was 380000 plants / hm ~ 2, the yield was 3289.79 kg / hm ~ 2; the optimal density was 371.18 × hm ~ 2 at 30 cm row spacing, the yield was 3211.96 kg / hm ~ 2. With the increase of density, the protein and fat content Showed a gradual downward trend, the highest protein and fat handling for the D1. In summary, the optimal density of ’Heinong 76’ at the spacing of 45 cm was 380000 plants / hm ~ 2 and the optimal density was 37180 / hm ~ 2 under the row spacing of 30 cm.