共 22 条
[1]
BJERREGAARD RS, 1971, THESIS UTAH STATE U
[2]
CALDWELL MM, 1972, ECOPHYSIOLOGICAL F E, P27
[3]
DAHLMAN R. C., 1968, Methods of Productivity Studies in Root Systems and Rhizosphere Organisms, Int. symp. U.S.S.R., Int. symp. U.S.S.R., P11
[6]
FERNANDEZ OA, 1974, THESIS UTAH STATE U
[7]
FERNANDEZ OA, BELOWGROUND ECOSYSTE
[8]
HEAD GC, 1974, SHEDDING PLANT PARTS, P237
[9]
JACQUES W. A., 1956, NEW ZEALAND JOUR SCI AND TECHNOL SER A, V37, P569