EFFECT OF APPLYING UREA AND GREEN MANURE AZOLLA ON THE RICE GROWING AND NITROGEN UTLLIZATION EFFECIENCY
Weng Boqi Chen Binghuan Tang Jianyang Liu Zhongzhu(AzoIIa Research Center, Fujian Academy of Agricultural Sciences, Fuzhon)
J4 . 1988, (02): 93 -101 .  DOI: 10.11869/hnxb.1988.02.0093