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Journal of Ecosystem & Ecography | ISSN: 2157-7625 | Volume 8
July 11-12, 2018 | Toronto, Canada
International Conference on
Environmental Microbiology & Microbial Ecology
International Conference on
Ecology, Ecosystems & Conservation Biology
&
Effect of diazotrophic biofertilizers in combination with urea on growth and biomass production of
sugarcane
Hossain GMA1, Solaiman ARM2 , Karim AJM S, Rahman GKMM and Mia MAB
Bangladesh Sugar Crop Research Institute, Bangladesh
Bangabandhu Sheikh Mujibur Rahman Agricultural University, Bangladesh
Apot experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh
for six months during December 2012 to June 2013 with a view to assessing the comparative performance of diazotrophic
biofertilizers on growth and biomass yield of sugarcane. Carrier materials i.e. CMC-1.28 gL-1+Starch-1.02 gL-1+ MgO (1%
w/w) was used to prepare liquid biofertilizers with diazotrophs viz; Bacillus cereus, Acinetobacter calcoaceticus, and Rhizobium
spp. These biofertilizers along with four levels of nitrogen as urea i.e. no nitrogen, 25% N of RFD, 50% N of RFD and 100% N
of RFD were used to conduct the experiment. The experiment was laid out in a Completely Randomized Design with three
replications. Results revealed that treatment receiving 50% N of RFD along with Bacillus cereus inoculation gave the highest
significant increase in all the growth parameters, biomass yield and nutrient content of sugarcane plant. The highest number
of tiller per hill (8.67), number of leaves (19.33), LAI (7.57), leaf greenness (34.17), total chlorophyll (0.366 mg 100 ml-1), cane
height (3.47 m), cane diameter (8.22 cm), number of internode (20.33) and biomass yield (403.44 g hill-1) were obtained in
treatment receiving 50% N of RFD + Bacillus cereus inoculation. The highest concentrations of N (2.50%), P (0.30%), K (1.61
%), S (0.28 %), Ca (0.37 %), Mg(0.25 %), Zn (44.00 ppm) and Mn (48.00 ppm) in sugarcane leaf also found from the same
treatment. Biomass yield increase of sugarcane over 100% N of RFD was 0.86% with the same treatment.
Biography
Gazi Md Akram Hossain, Principal Scientific Officer and Head of Soils and Nutrition Division, Bangladesh Sugarcrop Research Institute, Ishurdi-6620, Pabna,
Bangladesh.
Hossain GMA et al., J Ecosys Ecograph 2018, Volume 8
DOI: 10.4172/2157-7625-C3-038