Comparison of chemical and biological phosphorus fertilizers in potato

Subject Areas : New Finding in Agriculture

A.  Sefidgaran ¹ (M. Sc. in Agronomy, Agriculture-Jahad Organization of Markazi Province, Arak, Iran)

Received: 2016-01-13 Accepted : 2016-01-13 Published : 2015-04-21

Keywords: Potato, phosphorus, Yield and yield components, Phosphate Solubilizing Bacteria,

Abstract :

This experiment was conducted to evaluate solublizing bacteria and chemical phosphorus on three varieties of potato.Arandomized complete block design whit a split split plot layout was used in three replication.This investigation was carried out in a farm in Enaj, one of the environs of Arak. The result show that the use of phosphate solubilizing bacteria and its con frontation with other factors, were significantly affected the studied qualities about wet weight a erial part, wet weight of tubers, dry weight of tubers, the phosphorus content of tubers and prominent of baruest. It caused significantly in creasing in yield parameters, especially tubers yield comparing to chemical treatment at 1% level. The result also showed that the interaction effect of phosphate solubizing bacteria and chemical hosphorus, showed significant advantage in qualities of wet weight and dry weight of aerial part, dry weight of tuber, number of main stems per plant, Biomous yield and the phosphorus content per bush at 5%level. There was no significant difference at application treatment of phosphate solublizing bacteria with 75kg of chemical phosphate, in the yield aspect with the application of 15kg chemicalphosphate fertilizer. The results show that the application of chemical phosphorus in the most qualities suchas yield of tuber, the percentage of absorbed phosphorus, phosphate content of bush, dry weight of aerial part and biomas yield. Showed difference at 1% level and lead to the most result.

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