共 18 条
[1]
ATTERBERG A, 1887, LANDW JB, V16, P757
[2]
BAIER J, 1968, FOR SOC AGR SCI, V17, P1
[3]
BEAUFILS ER, 1973, 1 U NAT SOIL SCI B
[5]
DUMENIL LLOYD, 1961, SOIL SCI SOC AMER PROC, V25, P295
[7]
FRIISNIELSEN B, 1963, THESIS
[8]
GAUCH HG, 1972, INORGANIC PLANT NUTR, P436
[9]
Lundegardh Henrik, 1941, LANTBRUKSHOGSKOLANS ANNALER, V9, P127
[10]
MOLLERNIELSEN J, 1976, PLANT SOIL, V45, P317