4M K Woolford. The silage Fermentation[M].New York and Basel:Marcel Oekker, 1984:355.
5Muck R E. Ensiling and its effect on crop quality[C]. New York:National Silage roduction Conference, 1993: 57-66.
6Dcnoald KHnedosron A R Hoern S J E The Biochemistry of Silage[M].Marlo~ U K: Chalombe Publiactions, 1991:lSl.
7Schmidt R J, Hua W, Millsa L J & et al. The development of lactic acid bacteria and Lactobacillus buchneri and their effects on the fermentation of alfalfa silage [J].Journal of dairy science,2009,92(1@ :5005-5010.
8Driehuis F, van Wikselaar P G. Effects of addition of formic, acetic or propionic acid to maize silage and low dry matter grass silage on the microbial flora and aerobic stability[C]. UK:11th Int. Silage Conference, 1996:256-257.
9Spoelstra S F. Nitrate in silage[J]. Grass For Sci, 1985, 40: 1-11.
10Huchet V, Thuault D, Bourgeois C M. Modelisation des effets du pH, de l'acide lactique, du glycerol et du NaCI sur la croissance des cellules vegetatives de Clostridium tyrobutyricum en milieu de culture [J].Lait, 1995,75:585-593.
