冀西北高寒半干旱区青饲料作物品种比较试验研究

目的]筛选适合冀西北地区的优质高产青饲料作物品种。方法]采用随机区组设计,对6个青饲料品种(农大108(CK)、巡青518、乐食高丹草、墨杂1号青饲玉米、墨西哥玉米和百绿001青贮玉米)进行比较试验,筛选适合冀西北高寒半干旱区的青饲料作物新品种。结果]墨杂1号青饲玉米和百绿001青贮玉米的鲜草产量最高,分别为49 830和46 620 kg/hm2,比对照增加42.1%和32.9%。百绿001和墨杂1号的青饲性状明显优于其他品种,其生育期也较长。除墨西哥玉米外,其他品种在生育期内均有较强的抗病性和抗干旱性。墨杂1号青饲玉米干物质产量最高,达12 510 kg/hm2。结论]墨杂1号青饲玉米和百绿001青贮玉米综合表现较好,适宜在冀西北高寒半干旱区种植,而墨西哥玉米不适合在该区种植。

Comparative Test of Succulence Crop Varieties in High-cold and Semiarid Region of Northwest Hebei

Objective] The research aimed to screen out the suitable succulence crop varieties with good quality and high yield in the northwest area of Hebei province.Method] By using random block design,the comparative test of 6 succulence varieties including Nongda 108(CK),Xunqig 518,Leshi Sorghum bicolor × S.sudanese,Moza No.1 forage maize,Mexico maize and Bailv 001 silage maize was made to screen the suitable new succulence crop varieties in high-cold and semiarid region of Northwest Hebei.Result] The fresh grass yield of Moza No.1 forage maize and Bailv 001 silage maize were highest,being 49 830 and 46 620 kg/hm2 resp.and 42.1% and 32.9% higher than CK resp.The forage characteristics of Bailv 001 and Moza No.1 were better than other varieties and their growth stages were also longer.Except Mexico maize,other varieties had stronger disease-resistance and drought-resistance in the growth stage.The dry matter yield of Moza No.1 forage maize was highest and reached 12 510 kg/hm2.Conclusion] The comprehensive performances of Moza No.1 forage maize and Bailv 001 silage maize were better and suitable for planting in high-cold and semiarid region of northwest Hebei.But Mexico maize was not suitable fro planting in this area.