Vol. 7 No. 1
Influence of different sources of phosphorus and phosphate solubilizing bacteria on productivity of rainfed rice (Oryza sativa L.).
Abstract: An experiment was conducted during kharif seasons of 2005 and 2006 at the Research Fann College of Agriculture. Central Agricultural University, Imphal to ind out suitable source of phosphorus as well as their compatibility 11ith phosphate solubilizing bacteria under Rainifed acidic soil condition. Six different sources ofpho.1pl10rus (Mussoorie phosphate, di-ammonium phosphate, single super phosphate. M phos DAP. SSP + DAP and M. phos .c SSP) ll\'ith and 1rithout phosphate solubilizing bacteria were tried in factorial randomized block design wi!h 3 replications. Among !he different sources of phosphorus. fussoorie phosphate applicaion resulted in higher values of yield attributes (effeclives tiller hill and filled grains/panicle) and grain yield significa111(however di-ammonium phosphate was also .found equally good wilh !hat ol fussoorie phosphate. 1rhe11 ii was applied in combi11a io11 11 i1h either Jussoorie pho.1phate or single super ph().phate in 50% propor/ion. lrre.1pective Qf !he phosphorus sources . phosphae solubilirn1g bacteria i11ocula1ion showed a signiflcan 111crease in the values of yield attributes Q{rice and gave higher grain yield !han the uninocula!ed ones. bu111ยท11h regards locompatbilty It was found superior in increasing grain yield of nee when applied in combination with phos to other sources. DAP also can be made compatible with phosphale solubili i11g bacteria. by partial combination wilh eilher SSP or M Phos.
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