实验在新疆库车县利用早熟玉米(新饲玉13号)和大力士甜高粱在同等栽培管理条件下栽培生产,其产量和青贮品质及营养成分与晚熟青贮玉米进行比较分析。结果表明:大力士甜高粱和早熟玉米两次刈割时总生长天数分别达到为178 d和176 d,显著长于晚熟玉米品种的125 d(P<0.05)。大力士甜高粱的鲜草产量达94 822.38 kg/hm²,显著高于青贮玉米(P<0.05)但单位面积的干物质产量和生产成本之间无显著差异。大力士甜高粱具有含水率偏高,在干物质中的粗蛋白(CP)和水溶性碳水化合物含量高,而中性洗涤纤维(NDF)含量低等特点。大力士高粱和全株玉米均可调制优质青贮饲料,而且高粱青贮的pH值,挥发性游离脂肪酸含量等发酵品质明显优于全株玉米青贮(P<0.05)。以上结果表明,对南疆地区推广早熟玉米两次播机大力士甜高粱有参考种植价值。

This experiment was use of Hunnigreen, Early Maturing Maize(Xinsiyu 13) and Late Maturing Maize(Xinsiyu 12) as a cultivation experiment in southern Xinjiang Kuche County comparative study on yield and quality of the silage crop under the same condition. The results showed that the Hunnigreen and Early Maturing Maize can harvest twice a year, the total growth days of Hunnigreen,Early Maturing Maize were 178 days and 176 days, significantly longer than Late Maturing Maize(P<0.05). Fresh yield of Hunnigreen was 94822.38 kg/hm2, significantly higher than that of two kinds silage corn(P <0.05). Compared with the whole plant corn silage material Hunnigreen has high moisture content, the crude protein(CP) protein and water soluble carbohydrate content is high and low content of neutral detergent fiber(NDF) in dry matter based(P <0.05). Hunnigreen and whole plant corn can modulation quality silage,and is better the fermentation quality of Hunnigreen silage than whole plant corn silage(P<0.05). From the above results, in the southern Xinjiang two sowing of early maturing silage corn or regenerated Hunnigreen has promotion value.