共 12 条
[2]
DUDLEY JOHN W., 1963, CROP SCI, V3, P543, DOI 10.2135/cropsci1963.0011183X000300060027x
[4]
HACKEROTT H. L., 1958, AGRON JOUR, V50, P139
[6]
HANSON CH, 1963, NASNRC982523524
[7]
HANSON CH, 1965, 9 P INT GRASSL C SAO, P1209
[8]
SMITH O. F., 1960, Agronomy Journal, V52, P609
[9]
SMITH OF, 1955, 188 NEV AGR EXP STA