共 18 条
[1]
ALLEN RR, 1975, T ASAE, V18, P1109, DOI 10.13031/2013.36749
[4]
ANDERSON D. T., 1961, CANADIAN JOUR SOIL SCI, V41, P99
[5]
Anderson D. T., 1966, CAN AGR ENG, V8, P33
[6]
ANDERSON DT, 1967, P CAN CENTEN WHEAT S, P333
[7]
[Anonymous], CONSERVATION TILLAGE
[8]
BOWSER WE, 1963, SS5 U ALT B
[9]
Davidson D.T., 1965, METHODS SOIL ANAL 1, P472
[10]
DRYDEN RD, 1969, CAN AGR ENG, V11, P74