This study was carried out during two consecutive seasons, 2020 and 2021, on 12-year-old mango (Mangifera indica L.). cv. Ewaise grown in region Idku, El Beheira Governorate, Egypt. The trees were planted at 5 × 4 m apart and grafted on “Sokary” root stock to study the influence of zeolite and biochar on growth, yield, and fruit quality of “Ewaise” mango cultivar irrigated by agricultural drainage water. The trees were treated by the following treatments: zeolite or biochar solely at 1, 2, and 3 kg for tree and their different combinations such as 1 kg zeolite + 1 kg biochar; 1 kg zeolite + 2 kg biochar; 1 kg zeolite + 3 kg biochar; 2 kg zeolite + 1 kg biochar; 2 kg zeolite + 2 kg biochar; 2 kg zeolite + 3 kg biochar; 3 kg zeolite + 1 kg biochar; 3 kg zeolite + 2 kg biochar; and 3 kg zeolite + 3 kg biochar as well as control zero soil application. The obtained results showed that the soil application of zeolite or biochar gave a positive effect on improving the soil characteristics which reflects on the tree trunk thickness, shoot length and thickness, number of inflorescences, yield in kg per tree, and fruit quality. The greatest positive effect on the previous mentioned parameters was obtained by the combined application of the soil application of 2 kg zeolite + 3 kg biochar; 2 kg zeolite + 2 kg biochar; 3 kg zeolite + 2 kg biochar; and 3 kg zeolite + 3 kg biochar over the rest-applied treatments or control in the two seasons.

This study was carried out during two consecutive seasons, 2020 and 2021 on twelve years old mango (Mangifera indica L.). cv. Ewaise grown in region- Idku, El- Behaira Governorate, Egypt. The trees were planted at 5 x 4 m apart and grafted on 'Sokary' root stock to study the influence of zeolite and biochar on growth, yield, and fruit quality of “Ewaise” mango cultivar irrigated by agricultural drainage water. The trees were treated by the following treatments: Zeolite or Biochar sloley at 1, 2 and 3 kg for tree, and their different combinations such as 1 kg Zeolite + 1 kg Biochar; 1 kg Zeolite + 2 kg Biochar; 1 kg Zeolite + 3 kg Biochar; 2 kg Zeolite + 1 kg Biochar; 2kg Zeolite + 2 kg Biochar; 2 kg Zeolite + 3 kg Biochar; 3kg Zeolite + 1 kg Biochar; 3 kg Zeolite + 2 kg Biochar; 3 kg Zeolite + 3 kg Biochar as well as control zero soil application. The obtained results showed that the soil application of zeolite or biochar gave appositive effect on improving the soil characteristics which was reflects on the tree trunck thickness, shoot length and thickness, number of inflorescences, yield in kg per tree and fruit quality. The greatest positive effect on the previous mentioned parameters was obtained by the combined application of the soil application of 2kg Zeolite + 3kg Biochar; 2kg Zeolite + 2 kg Biochar; 3 kg Zeolite + 2 kg Biochar; 3 kg Zeolite + 3 kg Biochar over the rest applied treatments or control in the two seasons.