共 31 条
[1]
BARBIER G, 1951, ANN I NAT RECH AGRON, V3, P317
[6]
BURK D, 1933, SOIL SCI, V33, P455
[7]
Chaminade R., 1946, COMPT REND ACAD AGRIC FRANCE, V32, P131
[8]
DOLGOPOLOV N. N., 1952, Priroda, V41, P102