共 8 条
[1]
Healy W. B., 1973, Chemistry and biochemistry of herbage. Volume 1., P567
[2]
Healy W. B., 1967, P N Z SOC ANIM PROD, V27, P109
[4]
HEALY WB, 1968, NEW ZEAL J AGR RES, V11, P487
[5]
KARTCHNER RJ, 1975, THESIS OREGON STATE
[6]
KUBOTA J., 1971, Instrumental Methods for Analysis of Soils and Plant Tissue" Soil Science Society of America, Madison, Wisconsin, P67
[7]
OLSEN TE, 1971, THESIS U IDAHO
[8]
TILLEY J. M. A., 1963, JOUR BRIT GRASSLAND SOC, V18, P104