Effect of Phosphorus Bio‌‌fertilizers on Yield and Yield Components of Potato

Document Type : Research Paper

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Abstract

           In order to study the influence of phosphorus biofertilizer on yield and yield components of potato cv. Savalan an experiment was conducted in agricultural and natural resource research center of Hamedan during 2009. The experiment was arranged on complete randomized block design with three replications. The treatments included control and ten other treatment including different levels of bio-fertilizer (biophosphor (BP) and golden biophosphate (GBP)) with or without triple super phosphate (TSP) . The results showed that maximum number of tuber per plant (No mean 11.5) , tuber  weight per plant (1173 g), number of tuber in m2 (63.3) and total (67083 kg ha-1) and marketable yield (65657 kg ha-1) observed in TSP100+GBP300+Thio7.2 treatment. The amount of starch in tuber had positive and high correlation with variation level of phosphorus fertilizer. The highest starch percent in tuber was belonging related to fifth (TSP100+GBP300+Thio3.6) treatment and the lowest protein percent was observed in the T10 (BP10) and T7 TSP100+GBP300+Thio7.2 respectively. The maximum percent of tubers smaller than 35 mm diameter was observed in the T3(TSP200) moreover tubers with bigger than 55 mm diameter and deformed tuber belonged to control treatment. The maximum percent of tuber with 35-55 mm diameter was observed in T5 (TSP100+GBP300+Thio3.6). Application of phosphate solubilizing microorganisms with mineral phosphor positively affected available and soluble phosphor in the soil.        

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References

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