共 10 条
[1]
BARBER S. A., 1967, SSSA. Spec. Publ. Ser., P125
[2]
KELLING KA, 1979, AGLIME PEST MANAGEME, V18, P141
[3]
LIEGEL EA, 1977, WISCONSIN SOIL TESTI
[4]
LOVE JR, 1960, 7TH INT C SOIL SCI T, V4, P493
[5]
Martin W.E, 1973, SOIL TESTING PLANT A, P393
[7]
SIMSON CR, 1979, 2ND P ANN C APPL RES, P596
[8]
WALSH LM, 1972, PROFITABLE MANAGEMEN
[9]
WALSH LM, 1976, U WISCONSIN EXTENS A, V2809