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EFFECT OF ORGANIC FERTILIZER, PHOSPHORUS SOURCES AND AMOUNTS OF IRRIGATION WATER IN P AVAILABLE IN SOIL. | ||
| Diyala Agricultural Sciences Journal | ||
| Article 1, Volume 8, Issue 2, 2016, Pages 162-171 | ||
| Authors | ||
| SADIK KADHEM TABAN; ABED SALMAN JUBER | ||
| Abstract | ||
| Afield experiment was conducted in Agriculture College – University of Baghdad in the season 2012 to study the effect of addition organic fertilizer, phosphorous sources and amounts of irrigation water in availableof phosphorus in the soilbyusing three levels of irrigation water amounts at rates 60 % , 80 % ,100 % of the total water requirement in the season amounting 675 mm and two levels of organic compost ( Humo-Bacter A)) are zero and 1.5 Mg.ha -1and three sources of phosphate fertilizer ( triple super phosphate TSP, di ammonium phosphate DAP, urea phosphate UP) at rate 100 kg.ha-1. The results showed surpass urea phosphate significantly on other P sources with concentration reached 33.75 mg P. kg-1.soil. addition of organic fertilizer effected significantly in an increasing P availability in soil to 31.69 mg P. kg-1 .level of W3(100% of total water requirement) achieved high concentration among other levels reached 32.94 mg P. kg-1.soil.results indicated that the double and tri interactions W3M1,W3P3,M1P3,W3M1P3 achieved high p availability in soil reached to 38.02,38.8,40.8, 48.4 mg p.kg soil -1 ,respectively. | ||
| Keywords | ||
| Organic fertilizer; P sources; amounts water irrigation; available p | ||
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