共 18 条
[1]
Alexander M., 1965, SOIL NITROGEN, V10, P307, DOI [10.2134/agronmonogr10, DOI 10.2134/AGRONMONOGR10]
[2]
BIGGAR JW, 1969, AGRICULTURAL DRAINAG
[3]
DICKINSON WT, 1970, CAN AGR ENG, V12, P98
[4]
EDWARDS W M, 1970, Ohio Journal of Science, V70, P50
[6]
GOLDBERG M, 1970, AGRICULTURAL PRACTIC
[7]
GOLTERMAN HL, 1969, IBP8 HDB
[8]
HORTENSTINE C C, 1972, Journal of Environmental Quality, V1, P446, DOI 10.2134/jeq1972.00472425000100040026x
[10]
LAHDE E, 1969, ACTA FOR FENN, V94, P1