共 18 条
[1]
[Anonymous], AGRONOMY
[3]
BREMNER J. M., 1958, JOUR AGRIC SCI, V51, P22, DOI 10.1017/S0021859600032767
[4]
BREMNER J. M., 1958, JOUR AGRIC SCI, V51, P40
[5]
BROADBENT FE, 1965, AGRONOMY, V10, P344
[6]
CADY F. B., 1960, SOIL SCI SOC AMER PROC, V24, P477
[8]
KEENEY D R, 1973, Journal of Environmental Quality, V2, P15
[10]
NOMMIK H., 1956, Acta Agriculturae Scandinavica, V6, P195