半干旱区不同品种的青贮玉米与饲用高粱的生产性能及营养价值评价  

Evaluation on production performance and nutritional value of silage maize and forage sorghum varieties in semi-arid region of Ningxia

作　　者：王晓春 杨春莲 何志军 于海洋 金环 高婷 梁小军 WANG Xiao-chun;YANG Chun-lian;HE Zhi-jun;YU Hai-yang;JIN Huan;GAO Ting;LIANG Xiao—jun

机构地区：[1]宁夏农林科学院动物科学研究所,宁夏银川750002 [2]宁夏固原市畜牧技术推广服务中心,宁夏固原756000 [3]宁夏固原市林业草原发展服务中心,宁夏固原756000

出　　处：《饲料研究》2022年第5期96-100,共5页Feed Research

基　　金：国家重点研发计划子课题(项目编号:2021YFD1100508);国家现代农业产业技术体系(项目编号:CARS-37);宁夏回族自治区农业科技自主创新资金-农业高质量发展和生态保护科技创新示范项目子课题(项目编号:NGSB-2012-12-09)。

摘　　要：试验旨在筛选适宜在宁夏固原半干旱地区种植的优质饲草种类及品种,以12个饲用玉米和8个饲用高粱品种为对象,开展农艺性状、营养价值等指标的分析与比较。结果显示,青贮玉米中,强盛30的鲜、干草产量显著高于其他品种(P<0.05);天赐19和正大12的粗蛋白(CP)、淀粉含量最高,分别为6.28%、51.98%;金科968的RFV值最高。饲用高粱中,光明星的产草量最大,CP含量为7.75%,显著高于其他品种(P<0.05);F968的淀粉含量为27.90%,RFV值为118.64,二者均显著高于其他品种(P<0.05)。京科968、宁单24、正大12、屯玉168、大丰30、强盛30等青贮玉米品种以及F968、光明星、极光、F10、F438等饲用高粱,品种的灰色关联度综合评价表现较好。青贮玉米的CP含量显著低于饲用高粱(P<0.05),草产量、淀粉含量和RFV值极显著高于饲用高粱(P<0.01)。研究表明,饲用高粱耐旱性强于玉米,是旱作农业区生产潜力较大的一种饲草。The experiment was to screen forage species and cultivars suitable for planting in Guyuan semi-arid region of Ningxia, and the study analyzed and compared the agronomic traits and nutritional values of 12 forage maize and eight forage sorghum cultivars respectively. The results showed that in the silage maize, the yield of fresh corn and hay of Qiangsheng 30 was significantly higher than other varieties(P<0.05). The crude protein(CP) and starch content of Tianci19 and Zhengda 12 was the highest, which was 6.28% and 51.98%, respectively. Relative feeding values(RFV) of Jinke968 was the highest. In the forage sorghum, Guangmingxing had the highest forage yield, and CP content was 7.75%,which was significantly higher than that of other varieties(P<0.05). The starch content of F968 was 27.90%, and RFV value was 118.64, which were significantly higher than those of other varieties(P<0.05). The silage maize with good performance in the comprehensive evaluation of grey correlation degree included Jingke 968, Ningdan 24, Zhengda 12,Tunyu 168, Dafeng 30, Qiangsheng 30, and forage sorghum F968, Guangmingxing, Aurora, F10, F438 and so on. The CP content of silage maize was significantly lower than that of forage sorghum(P<0.05), while the starch content and RFV value of silage maize were extremely higher than that of forage sorghum(P<0.01). The experiment indicates that the drought tolerance of forage sorghum is stronger than that of maize, which is a forage grass with greater productivity potential in dry farming areas.

关 键 词：旱作农业区 青贮玉米 饲用高粱 灰色关联度 

分 类 号：S816[农业科学—饲料科学]