共 10 条
[1]
ALDRICH DTA, 1974, 13TH P NAT I AGR BOT, P2
[2]
[Anonymous], 1980, NUTRIENT REQUIREMENT
[3]
COWLING DW, 1963, EXP PROG GRASSLAND R, V15, P17
[4]
Cox G.M., 1968, EXPT DESIGNS
[6]
GLAS D. J., 1961, Mededelingen van de Nederlandse Keuringsdienst, V18, P90
[7]
GREEN JO, 1960, EXP PROG GRASSLAND R, V12, P19
[8]
ISAAC RA, 1976, J ASSOC OFF ANA CHEM, V59, P98
[9]
KORSTEN L., 1961, Meded. Nat. Coop. Aan- Verkoopver. Landb. Cent. Bur., V45, P86
[10]
TILLEY J. M. A., 1963, JOUR BRIT GRASSLAND SOC, V18, P104