共 6 条
[2]
HAMMERTON JL, 1971, TROP AGRIC, V48, P341
[3]
SEN S, 1970, ALLAHABAD FARMER, V44, P153
[4]
SINGH L, 1971, INDIAN J AGR SCI, V41, P535
[5]
TAYO TO, 1982, J W AFRICAN SCI ASS
[6]
VEERASWAMY R, 1972, Madras Agricultural Journal, V59, P435