苎麻用作青贮作物的生产性能评价

Evaluation on the Production Performance of Ramie as Silage Crop

通过对苎麻(Boehmeria nivea L.)鲜茎叶和混合青贮营养成分及生物产量的测定,结果表明,牧苎0904全年鲜茎叶总产量133.2 t/hm^2,中饲苎1号全年鲜茎叶总产量120.9 t/hm^2,牧苎0904和中饲苎1号收割平均高度为69.45和65.40 cm。牧苎0904和中饲苎1号营养成分检测前三茬的粗蛋白质、粗脂肪、酸洗纤维(ADF)、中洗纤维(NDF)、粗灰分、Ca、P含量基本一致。以50%苎麻+50%玉米青贮料较100%玉米青贮料的粗蛋白质、粗脂肪含量高,适合作反刍动物的青贮料。

The nutrients and biological yield of fresh leaves,stems and mixed silage of ramie were determined. The results showed that,the annual total yield of fresh stems and leaves from mu Zhu 0904 was 133.2 t/hm^2,that of fresh stems and leaves from zhong Zhu 1 was 120.9 t/hm^2,and the average harvest heights of mu Zhu 0904 and zhong Zhu 1 were 69.45 ～65.4 cm. The contents of crude protein,crude fat,acid washing fiber（ADF）,medium washing fiber（NDF）,crude ash,Ca and P in the first three crops of mu Zhu 0904 and zhong Zhu 1 were basically the same. Compared with 100% corn silage,50% ramie＋50% corn silage had a higher crude protein and crude fat content, which was suitable for ruminant silage.