Research article

EFFECT OF ADDING CHEMICAL FERTILIZERS AT DIFFERENT DISTANCES, DATES AND CONCENTRATIONS ON THE GROWTH AND YIELD OF DATE PALM

Raghad Saad Youssef and Abbas Hadi Hashem

Online First: February 22, 2023


A factorial experiment was conducted in one of the date palm horticulture stations of the Ministry of Agriculture for the purpose of studying the effect of adding N.P.K. fertilization with different distances, dates and concentrations in growth and yield for date palm trees of the Zahdi variety, three factors were used in the experiment after selecting 54 palm trees. The first factor included two spaces for feeding trees with fertilizer (100 and 200) cm, coded (A1 and A2). While he applied three dates for preparing fertilizer (10/2021, 3/12/2021, and 3/2/2022) code for them (B1, B2, and B3), while the concentration of fertilizer included the third factor, which included three concentrations of fertilizer, which are (250:250:500 and 500:500:750) gm L-1 In addition to the non-fertilization treatment, it is coded (C1, C2, and C3). The random block design was followed with three replications, and the averages were compared according to the least significant difference (L.S.D). At a probability level of 0.05 in analyzing the data statistically. The results of the experiment showed the superiority of the triple interaction treatment (A2B2C3) in the fruit content of carbohydrates, protein, phosphorus and total plant yield, while the triple interaction treatment (A2B1C3) excelled in the leaves content of chlorophyll according to the conditions of the experiment.

Keywords

Date palm, Al-Zahdi variety, NPK fertilizer, Total yield