共 12 条
[1]
BELL G. D. H., 1957, Agric. Rev., V3, P10
[3]
DEXTER S. T., 1956, Advanc. Agron., V8, P203, DOI 10.1016/S0065-2113(08)60690-2
[4]
HOLBERT JR, 1933, 285 US DEP AGR CIRC
[5]
HUNTER H., 1941, Journal of the Royal Agricultural Society, V101, P28
[7]
JOHANSSON N. -O., 1956, Acta Agriculturae Scandinavica, V6, P81
[8]
LAZENBY A., 1963, CROP SCI, V3, P179, DOI 10.2135/cropsci1963.0011183X000300020027x
[9]
LEVITT J., 1956, The hardiness of plants.