共 37 条
[1]
[Anonymous], 1963, PRINCIPLES NUMERICAL
[2]
BELL RHV, 1969, ANIMAL POPULATIONS R, P111
[4]
Chapman H.D., 1961, METHODS ANAL SOILS P
[6]
COOLEY WW, 1971, MULTIVARIATE DATA AN
[8]
EVANS R. A., 1958, Agronomy Journal, V50, P504
[9]
FRANKLIN JF, 1973, PNW8 USDA FOR SERV G