Effect of spraying with Biozyme and bacterial fertilizers on the yield and vegetative traits of two potato cultivars

الملخص EN

A field experiment was conducted in the fields belonging to College of Agriculture, Abu Ghraib on January/ 29/ 2017 to study the effect of nine treatments of two microorganisms: Azotobacter vinilandi and Pseudomonas fluoresces, spraying with the Biozyme on two potato cultivars (Everest and Riviera), with Elite order.

The treatment included (the control treatment, treatment of whole Recommended chemical fertilizer), as well as (treatment of Pseudomonas only, treatment of Azotobacter only, treatment of both types of bacteria, treatment of Biozyme only, the bi-interaction treatment between Pseudomonas and Biozyme, the bi-interaction treatment between Azotobacter bacteria and Biozyme, treatment of both types of bacteria with the Biozyme) plus half of the Recommended fertilizer.

The experiment was conducted as a factorial experiment according to the Randomized Complete Block Design (RCBD), The averages were compared at a 5% probability level, and the results of the following experiment showed: The treatment of T8 (inoculation with A.vinlandii Bacteria and P.

fluorescens Bacteria with Biozyme + half of the Recommended fertilizer) gave the highest percentage of vegetative growth Where it worked to increase the dry weight of the plant, the number of leaves and leaf area compared to the control treatment, It also gave the highest value in the number of tubers, the yield of one plant and the total yield compared with the control treatment.

Everest cultivar is characterized by the dry weight of one plant, number of leaves and leaf area.