玉米秣食豆混播比例对群体产量及产量构成的影响

Effect of Corn and Semicultivated Soybean Proportions on Yield and Yield Components

为了提高玉米单产和土地利用率,通过将玉米‘郑单958’和秣食豆按1:1、1:2、1:3的比例进行混播,以单作玉米作为对照,研究了混播群体的地上产量及构成。结果表明,玉米产量占群体产量的87.4%以上;随混播秣食豆的比例增加,玉米产量略有下降,其中茎叶产量下降明显,而秣食豆产量增加;混播群体地上生物产量和经济产量均随混播秣食豆比例增加而增加,并且各混播处理均显著高于玉米单作,其中1:3(A1B3)和1:2(A1B2)的群体地上产量分别比单作玉米提高15.5%和16.4%。

Researched the mixed sowing populations’ yield and yield components in order to improve maize yield and land use capability through the corn ’Zhengdan 958’ and semicultivated soybean mixed sowing by 1： 1, 1：2, 1：3 mixture ratios, and let the maize monoculture as control. The results showed that, corn production accounts for more than 90% of the population yield; corn production declined slightly, the stem and leaf yield decreased obviously, and semicultivated soybean yield increased with proportions increasing. Groups of mixed biomass yield on the ground and economic yield increased with proportions increasing, and all the mixed sowing treatments were significantly higher than that of maize monoculture, where mixed biomass yield on the ground of 1：3（A1 B3） and 1：2（A1 B2） increased 15.5%, 16.4%than monoculture maize yield.