王草青贮品质研究

研究了不同添加水平的尿素和新银合欢对王草发酵品质的影响。尿素的添加比例分别为0.3%、0.4%和0.5%，新银合欢的添加比例分别为1/3、1/2、2/3和100%，另设100%王草组作为空白对照。试验结果表明，新银合欢添加组的青贮品质均优于尿素添加组。在尿素添加组中，所有添加尿素组和100%王草对照组青贮品质较差，说明王草青贮单独或添加尿素青贮的效果不佳，在实际运用应尽量避免使用这2种方法进行青贮。在新银合欢添加组中，青贮品质由高到低的排列为：1/3新银合欢组、1/2新银合欢组、2/3新银合欢组和100%

Silage Quality Research of King Grass

The effects of different urea levels and Leucaena leucocephala (Lam) de Witto on king grass (Pennisetum puroureum K. Scbumacb×P. typehioideum Rich) fermentation quality were studied. The urea levels were respectively 0.3%,0.4% and 0.5%, L. leucocephala (Lam) de Witto levels were respectively 1/3, 1/2, 2/3 and 100%. 100% king grass was used as control. The experimental result indicated that the group of L. leucocephala (Lam) de Witto have higher ensilage quality than the urea group. In added the urea group, all urea group and 100% king grass control group's ensilage quality was bad, showing that the king grass ensilage alone or the urea ensilage's effect was not good. In groupof L. leucocephala (Lam) de Witto, ensilage quality arrangement from high to low was 1/3 L. leucocephala (Lam) de Witto group, 1/2 L. leucocephala (Lam) de Witto group, 2/3 L. leucocephala (Lam) de Witto group and 100% L. leucocephala (Lam) de Witto group, these four group of ensilage quality surpassed 100% king grass control group. The L. leucocephala (Lam) de Witto improved the king grass ensilage quality, and 1/3 L. leucocephala (Lam) de Witrecruitment's quality was good.