黄土高原丘陵沟壑区饲用玉米引种筛选试验研究

Experimental Study on Introduction and Selection of Forage Maize in Hilly and Gully Region of Loess Plateau

为筛选适宜干旱半干旱黄土高原丘陵沟壑区种植的高产优质饲用玉米新品种,在甘肃省定西市的安定区、通渭县、陇西县开展了12个饲用玉米引种品比试验。结果表明,文玉3号、雅玉青贮26、京九青贮23、西蒙青贮707、五谷8567五个品种的株高和鲜草产量居前5位,株高3.34~3.54 m,鲜草产量127200~142550 kg/hm^(2),粗蛋白含量均在10%以上。综合表现优于其他品种。综合分析认为,文玉3号、雅玉青贮26、京九青贮23、西蒙青贮707、五谷8567五个品种适合在黄土高原丘陵沟壑区春播种植。

In order to screen new forage maize varieties with high yield and high quality which are suitable for planting in hilly and gully region of arid and semi-arid Loess Plateau,introduction and comparison experiments of forage maize were carried out in Anding district,Tongwei county and Longxi county.The results showed that the plant height and fresh grass yield of Wenyu 3,Yayu silage 26,Jingjiu silage 23,Simon silage 707 and Wugu 8567 ranked in the top 5,the plant height was 3.34-3.54 m,the fresh grass yield was 127200-142550 kg hm^(2),the nutrients were also at a relatively high level,and the crude protein content was more than 10%,which was better than that of other varieties.Comprehensive analysis shows that Wenyu 3,Yayu silage 26,Jingjiu silage 23,Simon silage 707 and Wugu 8567 are suitable for spring sowing and planting in the hilly and gully region of the Loess Plateau.