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为确定大豆玉米“扩行增密”带状复种技术在山西的增产效果及筛选适宜的大豆品种,应用大豆品种汾豆78与玉米品种大丰30研究了山西省传统玉米大豆套作模式与大豆玉米“扩行增密”带状复种技术对比,应用大豆品种汾豆78、79、56、92及93与玉米品种大丰30进行了大豆新品种筛选。测定了大豆苗期、盛花期、结荚期的叶绿素含量和干物质积累,大豆成熟后的品质,大豆玉米成熟后的植株性状和产量。结果表明:大豆玉米“扩行增密”带状复种技术与传统套作模式相比,带状复种技术下大豆植株总叶绿素、籽粒蛋白质及油脂含量更高,蛋白质和油脂含量分别为42.28%和19.84%,大豆与玉米产量分别为531.0和9 514.5 kg·hm~(-2),分别增产6.6%和70.7%。大豆新品种筛选结果显示,汾豆93在植株生长后期干物质及叶绿素含量最高,植株性状最佳,成熟后籽粒的品质最好,蛋白质和油脂含量分别为44.08%和20.2%,玉米大豆综合产量最高,大豆和玉米的产量分别为894.0及10 550.7 kg·hm-2,比对照组分别增产了68.7%和10.9%。表明这种大豆玉米“扩行增密”带状复种技术适合在山西省生态环境条件下应用推广,汾豆93与大丰30是“扩行增密”带状复种模式较好的搭配品种。
In order to determine the yield-increasing effect of Soybean “expanding and enhancing ” banded multi-seed technology in Shanxi and screening suitable soybean varieties, the soybean varieties Fen-sheng 78 and corn variety Dafeng 30 were used to study the traditional corn-soybean intercropping model Compared with the soybean multiple cropping technology, the soybean varieties Fenfen 78, 79, 56, 92 and 93 and the corn cultivar Dafeng 30 were screened. The chlorophyll content and dry matter accumulation of soybean at seedling stage, full bloom and podding stage, the quality after soybean maturation, the plant traits and yield after soybean maturity were measured. The results showed that compared with the traditional intercropping mode, the soybean seedling with “expanded and dense” banding technology had higher content of total chlorophyll, protein and lipid, and protein and lipid content of soybean plants were 42.28 % And 19.84% respectively. The yields of soybean and corn were 531.0 and 9 514.5 kg · hm -2, respectively, which increased 6.6% and 70.7% respectively. The screening results of new varieties of soybean showed that Fen-93 had the highest content of dry matter and chlorophyll at the later stage of plant growth and the best plant characters. The quality of the mature grain was the best, the contents of protein and fat were 44.08% and 20.2% The highest yield of soybean and maize was 894.0 and 10 550.7 kg · hm-2, respectively, which increased by 68.7% and 10.9% respectively compared with the control. It is indicated that this kind of soybean maize “sowing expanded ” strip reed technique is suitable for application and promotion under ecological environment in Shanxi Province. Fenhe 93 and Dafeng 30 are better With the variety.