Response of Potato to Organic Fertilizer and Zinc Sulfate Spraying on some Growth Characteristics and Yield

Abstract

A field experiment was carried out at the research station of the College of Agriculture, University of Anbar, for the spring season 2021-2022 to study the effect of adding organic fertilizer and spraying with zinc sulfate on two cultivars of Solanum tuberosum L. The study was carried out as a factorial experiment within the design of completely randomized sectors (RCBD); the first factor included composting transactions ten transactions Control treatment, chemical fertilization treatment, organic fertilization poultry treatment 50 g.plant, organic fertilization treatment 100 g.plant, spraying treatment 1 g zinc sulfate. Plant, spraying treatment 3 g zinc sulfate.plant, interaction treatment 50 g.organic fertilizer plant + 1 g zinc sulfate Overlap treatment 50 g.organic fertilizer plant +3g zinc sulfate, overlap treatment 100g.organic fertilizer plant +1g zinc sulfate, overlap treatment 100g organic fertilizer plant +3g zinc sulfate). The second factor included the two potato cultivars, Naima and Challenger rank Elite. The total transactions amounted to 20 treatments and were repeated thrice, bringing the whole to 60 experimental units. The averages were compared at a 5% probability level: the Challenger variety gave the highest value for the number of main aerial stems, 2,220. plant̄¹ and the highest value for plant lengths is 85,754 cm. plant̄¹, the leaf area is 98,880 dm2 plants̄¹, and the average number of tubers per plant is 6.799 tubers plant̄¹. The variety Naima gave the highest value for the yield of one plant, 1049.60 g. plant̄¹ and the total yield of tubers is 49.11 tons ha -¹. Adding 50 gm of organic fertilizer + 1 gm of zinc sulfate was significantly superior to the number of main aerial stems of 2.933. plant̄¹, adding 100 gm of organic fertilizer + spraying 1 gm of zinc sulfate was superior in plant height 98.130 cm while adding 100 gm of organic fertilizer + spraying 3 gm of zinc sulfate was significantly superior in leaf area of 159.490 dm2 plants̄¹. Adding 100 gm of organic fertilizer + 1 gm of zinc sulfate significantly increased the yield of one plant, 1164.50 gm. Plant̄¹. Adding 100 gm of organic fertilizer and spraying 3 gm of zinc sulfate was significantly superior to the total yield of 62.03 tons ha-¹. Keywords: Potato, Organic Fertilizer, Zinc Sulfate Spraying