共 14 条
[1]
AGRAWAL R P, 1975, Annals of Arid Zone, V14, P339
[2]
ALLISON LE, 1965, METHODS SOIL ANALY 2, V9
[3]
Armstrong A. C., 1977, Agricultural Engineering, V32, P93
[4]
VARIABILITY OF SOIL CHEMICAL PROPERTIES IN TWO UNCULTIVATED BROWN EARTHS
[J].
JOURNAL OF SOIL SCIENCE,
1968, 19 (02)
:379-+
[6]
FAURE A, 1972, ANN AGRON, V23, P317
[7]
GUERIF J, 1979, ANN AGRON, V30, P387
[9]
LAPLANTE L, 1959, MIN AGR QUE