共 5 条
[1]
COOKE G. W., 1958, Journal of the Science of Food and Agriculture, V9, P324, DOI 10.1002/jsfa.2740090602
[2]
CORRELATION BETWEEN NITRIFIABLE NITROGEN AND YIELD RESPONSE OF CORN TO NITROGEN FERTILIZATION ON IOWA SOILS
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1953, 17 (02)
:119-122
[3]
FREDERICK LLOYD R., 1956, SOIL SCI SOC AMER PROC, V20, P496
[4]
HANWAY J., 1955, Soil Science Society of America. Proceedings, V19, P77
[5]
Russell E. W., 1961, SOIL CONDITIONS PLAN