冬油菜茬后复种青贮玉米品种比较

Variety comparative test of multiple cropping silage maize in winter rapeseed stubble

为了开辟饲料生产新途径,在冬油菜(Brassica napus)茬后复种青贮玉米(Zea mays),开展品种筛选试验。对9个参试品种生育期、植株形状、产草量等指标的调查和测定,结果表明,饲粮2号和文玉5号属中熟品种,茎秆最粗,且饲粮2号鲜草产量最高,为79 303.7kg.hm-2,其干物质为18 855.9kg.hm-2;文玉5号鲜草产量次之,其干物质产量最高,为20 127.6kg.hm-2。综合分析认为,饲粮2号和文玉5号具有较高的生物产量,适于在当地冬油菜茬后复种推广种植。

In order to find new ways to stubble multiple cropping was carried were measured. The results indicated stems of Siliang No. 2 and Wenyu No. No. 2 was the best with 79 303.7 kg .kg . ha-1 dry matter yield. These data silage corn in winter rapeseed stubble feed production, the screening test of silage cone in winter rapeseed out. The growth period, plant shape, grass yield, and nutrients that Siliang No. 2 and Wenyu No. 5 were medium varieties. The 5 were the strongest with 1.91 and 1.82 cm, respectively. Siliang ha 1 fresh matter yield and Wenyu No. 5 was the best with 20 127.6 suggest that Siliang No. 2 and Wenyu No. 5 were the most suitable multiple cropping in the East of Gansu Province.