McDonald P, Playne M J. The buffering constituents of herbage and of silage. Journal of the Science of Food and Agriculture, 1966, 17: 264-265.
[15]
Van Soest P J, Robertsom J B, Lewis B A. Methods for dietary fiber, neutral detergent fiber and non-starch polysaccharides in relation to animal nutrition. Journal of Dairy Science, 1991, 74: 3583-3597.
[16]
傅彤. 微生物接种剂对玉米青贮饲料发酵进程及其品质的影响. 北京: 中国农业科学院, 2005.
[17]
Rohweder D A, Barnes R F, Jorgensen N. Proposed hay grading standards based on laboratory analyses for evaluating quality. Journal of Animal Science, 1978, 47: 747-759.
McCartney D, Fraser J, Ohama A. Annual cool season crops for grazing by beef cattle. A Canadian review. Canadian Journal of Animal Science, 2008, 88: 517-533.
Ndiaye E L, Sandeno J M, McGrath D, et al. Integrative biological indicators for detecting change in soil quality. American Journal of Alternative Agriculture, 2000, 15(1): 26-36.