共 7 条
[1]
Bateman H., 1963, T ASAE, V6, P19
[2]
DOVRAT A, 1965, ISRAEL J AGR RES, V15, P179
[3]
FELDMAN M, 1970, CAN AGR ENG, V12, P8
[4]
FRIBOURG HA, 1973, FORAGES SCI GRASSLAN, P344
[5]
GILL WR, 1967, USDA316 AGR HDB, pCH8
[6]
SHEESLEY R, 1974, CALIF AGR, V28, P6
[7]
1961, T AM SOC AGRIC ENG, V4, P231