EFFECT OF ADDITION OF BIOFERTILIZERS, NILE FLOWER PEAT FERTILIZER AND SPRAYING WITH ITS EXTRACT ON QUALITATIVE CHARACTERISTICS OF POTATO YIELD

Abstract

The field experiment was carried out in Horticulture Development Station  in the Kut district of the Directorate of Agriculture of Wasit Governorate at spring season 2022, This study was aimed to demonstrate the effect of inoculation some Bio-fertilizers, adding Nile flower peat fertilizer and spraying with its extract on qualitative characteristics potato yield, The experiment was implemented using factorial experiment(4×3×2) within Randomized Complete Block Design with three replicates, The First factor included the inoculation with Biofertilizers and cod it (M), which is(M₀) Don’t be discouraged , (M₁) inoculation the Mycorrhiza in pollen density of 25 g.tuber^-1 ,(M₂) inoculation the Trichoderma pollen density of 4 g.tuber^-1and (M₃)Mixture Mycorrhiza and Trichoderma fungi together, The second factor included the addition of Nile flower peat fertilizer and cod it (N), which is (N₀) without adding, (N₁)added 15 ton.ha^-1 and (N₂) added 30 ton.ha^-1, The third factor included spraying with Nile flower peat fertilizer extract and cod it (E), spraying with distilled water(E₀) and spraying with extract 2 ml.L^-1 (E₁), The results showed that biofertilization was significantly superior in qualities characteristics of the yield represented by dry matter percentage, starch percentage ,specific density, soluble solids percentage and tuber hardness, compared with control (M0(, M3 treatment produced greatest value of this characteristics which reached 16.84%, 11.01%,  1.0640 g cm^-2, 6.459%, 8.167 kg cm^-2. Organic fertilization showed significant increase in the above characteristics, N2 treatment produced  greatest value which  reached 17.20%, 11.33%, 1.0657g cm^-2, 6.633%, 8.179 , kg cm^-2. Spraying treatment had amoral superiority on above characteristics if produced 16.50%, 10.70%, 1.0623 g cm^-2, 6.407 %, 7.944 kg cm^-2.