共 13 条
[2]
HABER ES, 1938, 243 IOW AGR EXPT STA
[3]
HEYNE E. G., 1940, JOUR AMER SOC AGRON, V32, P803
[4]
HUNTER J. W., 1936, Journal of the American Society of Agronomy, V28, P694
[5]
JOHNSON C. M., 1957, Plant and Soil, V8, P337, DOI 10.1007/BF01666323
[6]
KALOYEREAS SA, 1958, PLANT PHYSL, V20, P232
[7]
KILEN TC, 1968, THESIS U WISCONSIN
[8]
MURTY KS, 1962, CURR SCI INDIA, V31, P470
[9]
SAMPSON PJC, 1961, NATURE, V191, P932
[10]
STICKLER F. C, 1961, AGRON JOUR, V53, P187