Here's another tidbit: http://shodhganga.inflibnet.ac.in/bitstream/10603/33234/12/12_chapter%202.pdf
Osman and Abd El-Rhman (2010) studied the effect of organic and bio N-fertilization on growth, productivity of fig tree (Ficus carica). Applying poultry manure +Azotobacter and poultry manure +Azospirillum gave the highest number of new shoots, shoot length, leaf area, total chlorophyll, number of fruits per shoot, yield, fruit volume and fruit length in the two seasons. Also, the same treatments gave the highest TSS, acidity, total and reducing sugar content and leaf minerals content (N, P, K, Ca and Mg %) in the two seasons. The results clarified that poultry manure + Azotobacter and poultry manure + Azospirillum treatments gained best vegetative growth, productivity and fruit quality