共 26 条
[12]
OLSON RA, 1973, WATER RESOURCES B, V9, P301
[13]
OLSON RA, 1964, NEBRASKA AGR EXP STN, V479
[14]
Pratt P.F., 2015, NITROGEN CROP PRODUC, P319, DOI [10.2134/1990.nitrogenincropproduction.c21, DOI 10.2134/1990.NITROGENINCROPPRODUCTION.C21]
[17]
SCHEPERS JS, 1985, RELATION GROUNDWATER, P21
[20]
VIETS FG, 1971, USDA ARS AGR HDB, V413