The impact of poultry manure fertilization on mineral content and productivity of pistachio tree leaves var "Ashouri"

Abstract

This research was conducted during the seasons (2017, 2018), on pistachio trees var.’ Ashouri’ planted in Bsireen village at Hama governorate, in order to study the effect of different levels of  poultry manure in the leaf nutrients content, leaf area and production of pistachio trees var. Ashouri.

Five rates of poultry manure were applied (10, 15, 20, 25, 30 kg / tree) which are named (T₁₀, T₁₅, T₂₀, T₂₅, T₃₀) and compared to chemical fertilizer (T_NPK treatment) as applied by the farmer, and with a control without any fertilizer additive (T₀). The experiment was designed as Complete Randomized Blocks Design.

The used manure fertilizer showed a positive effect in improving leaf nutrient content of (N, P, K, B), and the best treatments were T₂₀, T₂₅, and T₃₀. The treatment T₃₀ also showed the highest increase of leaf area (202.37 and 198.96) cm² for the two seasons, respectively. Concerning production the treatments T₂₀, T₂₅ and T₃₀ exceeded significantly all the rest ones, so in light of these results and from an economic point of view, fertilization with poultry manure at a rate of 20 kg / tree is recommended for good productivity of pistachio tree var. Ashouri.