ROLE OF NUMBER OF POLLINATION TIMES, POLLINATERS AND ORGANIC FERTILIZER IN LEAVES MINERAL CONTENT AND YIELD OF BARHI DATE PALM

Abstract

The experiment was carried out in 2023 season in one of date palm orchard of Barhi cultivar cultivated at Dawar palm station belong to Ministry of Agriculture / Horticultural Department, to study effect of two pollinator cultivar and decomposed organic fertilizer on yield and leaves mineral content of date palms of 7-year-old cultivar Barhi, as 54 are selected. A palm tree of uniform height and age, as far as possible, free of disease and insect infestations, Factors of study experiment included addition of two pollinator cultivar, Ghanaami Akhdar (P₁), and local cultivar (P₂), while pollinations number was three times; once (N₁), Two pollinations (2 days after first pollination) (N₂)  and pollination three times (3 days after first and 3 days after second) (N₃), As for decomposed organic fertilizer (sheep manure), they were added in three levels (0, 20, and 40 kg.date^-1), which are denoted by symbols M₀, M₁, and M₂, respectively. The experimental results showed that pollinators did not significantly effect in leaf nitrogen, phosphor content and fruit weight while local cultivar pollinator (P₂), significantly increased in fruit weight of 11.79 g. Results also showed that pollinations number did not significantly effect in leaf nitrogen, phosphor content while pollination three times (N₃) gave the highest fruit weight of 11.88 g. Sheep manure application was significantly affect especially at 40 kg.date^-1 (M₂)  excelled in leaf nitrogen content of 1.946 %, leaf phosphor content of 0.440 % and fruit weight of 12.70g.