共 19 条
[1]
ESTIMATION OF CORN AND SOYBEAN YIELDS UTILIZING MULTIPLE CURVILINEAR REGRESSION METHODS
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1972, 36 (02)
:316-&
[3]
HOLT R. F., 1964, AGRON J, V56, P82
[5]
ISFAN D, 1983, COMMUN SOIL SCI PLAN, V14
[6]
ISFAN D, 1981, AGRON J, V56, P82
[9]
LETEY J., 1957, AGRON JOUR, V49, P362