玉米大豆间作体系沼液浸种的产量效应分析

Output Effect Analysis of Seed Soaking with the Methane Pit in Intercropping of the Corn and the Soybean

利用玉米大豆间作体系与主作物玉米沼液浸种相结合,采用三因素二次回归正交旋转组合设计,进行玉米大豆间作玉米密度、带型配置指数、沼液浸种时间与间作总产量关系的研究.结果表明:玉米密度、带型配置、玉米浸种时间三因子对间作总产量的影响达到极显著水平.沼液浸种时间与玉米密度、沼液浸种时间与带型配置指数;以及玉米密度与带型配置指数间都有一定的互作效应.当玉米密度、带型配置适当,沼液浸种能增加产量,即在玉米大豆间作体系中利用沼液浸种能有效地提高间作总产量.其最佳的实验方案为:玉米密度50 040～52 950株/hm2、带型配置2:4～3:3,玉米沼液浸种时间17.5～25 h时,可更好地发挥玉米大豆间作复合群体的增产效应.

For studying the output effect analysis of seed soaking with the methanepit inintercropping of the cornand the soybean . Three factors square quardranic rotational regression combination design was used in the experiment. Carring on the methane pit to immerse the kind（ only to corn）, The results showed that the methane pit soaking time and corn density, the methane pit soaking time and SCI have certain effect each other;When corn density, take the type to install appropriate, the methane pit immersescan increase the yield. At experiment under condition, density of maize 50 040 - 52 950individual plants/hm^2, SCI2：4 - 3： 2, the time of maize seeds sokeing in methane pit 17.5 -25 h. the total yield could be obvious increase by immersing maize seeds with methane pit.