Response of two varieties of potatoes (Solanum tuberosum L.) for inoculation with nonbivalent bio-fertilizers

Abstract

A field study in the fields of the Abu Ghraib Faculty of Agriculture conducted the alternativesite of Anbar University on January 29, 2017 to study the effect of five treatments, includingtwo microorganisms: Azotobacter vinilandi and Pseudomonas fluoresces, on two varietiesof Everest and Riviera. The trial included the treatment of comparison and the treatmentof the complete chemical fertilizer recommendation, as well as the treatment of Pseudomonasonly, treatment of Azotobacter bacteria only, treatment of both types of bacteria, plus half ofthe fertilizer recommendation. The experiment was carried out according to the design of therandomized complete plock (RCBD) The first factor included the varieties (V) and the second(T), three replicates and each replicator containing 5 treatments per varietiy. Thus, the numberof experimental units was 30 units, compared with the means at a 5% probability level.Azotobacter vinilandi and Pseudomonas fluoresces + half of the fertilizer recommendationin the percentage of iron in the leaves and the ratio of nitrogen and phosphorus in the tuberswhere they gave the highest value of (210.5 mg -1 kg, 1.33% and 0.60%) also gave the sametreatment highest peak in the percentage of protein and starch The Total Soluble Solids ratioin the tubers reached (1.485%, 11.95% and 6.1%). Sequentially with the comparison treatment.Revere (V2) was superior to Everest (V1) in the ratio of iron in leaves and phosphorusin leaves (200.8 mg / kg -1 and 0.57%), while Everest was higher in starch and protein ratio(1.41 and 11.8)% The results of the intervention showed that the treatment T4 with V2 washigher in iron ratio in leaves, phosphorus percentage in tubers and Total Soluble Solids ratio.while same treatment with V1 was higher in protein, starch and phosphorus in tubers, givinghigher values