共 11 条
- [1] CRAMPTON EW, 1960, J ANIMAL SCI, V21, P628
- [2] DONEFER CM, 1966, 10 P GRASSLD C HELS, P442
- [4] GOERING HK, 1970, 379 AGR HDB
- [5] JOHNSON RR, 1965, 9 P INT GRASSL C, V1, P773
- [7] OSBOURN DF, 1970, ANNU REP GRASSLAND R
- [9] EFFECT OF SILICA IN FORAGES UPON DIGESTIBILITY [J]. JOURNAL OF DAIRY SCIENCE, 1968, 51 (10) : 1644 - &