玉米-大豆间作模式与经济效益研究

Study on Maize and Soybean Intercropping Pattern and Economic Benefit

为筛选适合沧州地区玉米-大豆间作的大豆适宜品种,在2行玉米、3行大豆间作模式下,研究了夏玉米间作不同品种大豆对夏玉米和大豆光合特性、产量以及经济效益的影响。结果表明:间作玉米的叶片SPAD值、穗位叶叶面积和光合速率均显著>玉米单作;间作大豆的叶片SPAD值和光合速率均<其对应品种的大豆单作;经济效益顺序为玉米-大豆间作>玉米单作>大豆单作,玉米-大豆间作的经济效益较玉米单作或大豆单作显著提高,适宜玉米-大豆间作的大豆品种为沧豆6号、沧豆10号和冀豆12。建议在沧州地区推行玉米-大豆间作模式,适宜间作的大豆品种为沧豆6号、沧豆10号和冀豆12。

To screen the soybean varieties suitable for maize and soybean intercropping in Cangzhou, using the pattern of 2 rows of maize with 3 rows of soybean, the effects of intercropping on the photosynthetic characteristics, yield and economic benefit of maize and soybean were studied. The results showed that intercropping significantly improved the leaf SPAD value, the ear leaf area, and the photosynthetic rate of maize than single cropping, while decreased the leaf SPAD value and photosynthetic rate of soybean than single cropping. The economic benefit of maize and soybean intereropping was increased significantly than that of maize or soybean single cropping. The soybean varieties suitable for intercropping were Cangzhou No. 6, Cangzhou No. 10 and Jidou No. 12. The maize and soybean intercropping pattern could be popularized in Cangzhou.