共 13 条
[3]
BERG M. A., 1958, Agronomy Journal, V50, P713
[7]
MARSHALL HG, 1972, CROP SCI, V12, P871, DOI 10.2135/cropsci1972.0011183X001200060047x
[8]
OYJORD E., 1963, Journal of Agricultural Engineering Research, V8, P85
[9]
PATTERSON FRED L., 1957, AGRON JOUR, V49, P461