journal of kerbala university

A pot experiment was conducted in lath house at the College of Agriculture -University of Baghdad in 2010-2011 in a silty clay loam soil , to study the effect of Bio-fertilizer (PSB) phosphate solubilizer bacteria on the growth & yield of wheat (IPA-99) . The experiment was CRBD design with four treatments (A1,A2,A3,A4 ) . A4 –as control (only soil) , A3 – mineral fertilizr (280 K.gm.N.ha-1 & 40 K.gm . p . ha 1 & 280 K.gm. ha-1.
.A2 (S0il was treated with Bio-fertilizer mixed with seeds and A1 (soil was treated with Bio-fertilizer mixed with irrigated water , the results showed that Bio-fertilizer application had a significant effect on the growth of plant , the number of filler , the weight of 100 seeds , the total yield of dry matter ,and there was a significant increment in the available N&P in soil .The results of this study indicated
1-The treatments with Bio-fertilizer gave 7 tillers .plant -1 , 3.6gm wt of 100 seeds & 93% of planting while the control (with out Bio-fertilizer )gave 4, 2.5 gm , & 7% ) rerpectively.
2- the treatment A2T3 gave a high number in phosphate dissolving , CFU/ gm of dry soil 653*106- &gave high level of available p which was 38.16 M gm .p. Kg -1 of soil
3- the treatment A2T2 gave high level of available- N 35.48 Mgm NH4+ . Kg-1 of soil-1 .
4-the treatment A2T1 gave available-N 28.2Mgm.Kg 0f soil-1.