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Pakistan Journal of Biological Sciences
Year: 2004  |  Volume: 7  |  Issue: 3  |  Page No.: 309 - 311

Role of Cyanobacteria on Yield of Rice in Saline Soil

M.A. Aziz and M.A. Hashem    

Abstract: An experiment was carried out in the saline soil of Satkhira during the aman season of 2000 in order to test the effectiveness of the cyanobacterial inoculum on yield of rice. The modern rice variety BRRIdhan 31 was used as the test crop. There were six treatments for the experiment viz. T1 (control), T2 (Recommended Fertilizer Dose), T3 (RFD-20%N), T4 (RFD-20%N+Cyanobacteria), T5 (RFD-40%N) and T6 (RFD-40%N+Cyanobacteria). Eight cyanobacterial strains were isolated, identified and brought under pure unicyanobacterial cultures from the selected location. Cyanobacterial inoculum was applied @ 20 kg ha-1 in two equal splits-7 and 30 days after transplanting. Results of field trials indicated that cyanobacterial inoculum could supplement up to 20% nitrogen for rice cultivation in saline soils. Inoculation of the cyanobacterial inoculum in the saline soil resulted 80.48% increase in yield over control.

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