共 12 条
[1]
ATKINSON HJ, 1958, AGR CAN PUBL, V169
[2]
DAVIDSON HR, 1982, WATER AGR WORK PLANN
[5]
FRIESEN G., 1960, CANADIAN JOUR PLANT SCI, V40, P457
[6]
HILL K. W., 1954, SOIL SCI SOC AMER PROC, V18, P182
[9]
HOBBS EH, 1977, LRS3 AGR CAN RES STA