The Implications of Decreasing Npk Mineral Fertilizers on the Fruit Quality of Valencia Orange Trees

Mohamed, Mohamed G.; Albadawy, Hamed Elzaabalawy; EL-Gioushy, Sherif Fathy

doi:10.21608/assjm.2025.352228.1341

The Implications of Decreasing Npk Mineral Fertilizers on the Fruit Quality of Valencia Orange Trees

Document Type : Original Article

Authors

¹ Horticulture - Agriculture - Benha University

² Hort. Dept., Fac. Agric., Benha Univ., Egypt.

³ Horticulture Department, Faculty of Agriculture (Moshtohor), Benha University, Egypt

10.21608/assjm.2025.352228.1341

Abstract

This study was conducted during two successive seasons (2022 and 2023) to know the effect of using organic compost fertilizer and effective microorganisms in improving productivity and fruit quality of Valencia orange trees for reducing NPK fertilizer Experiment were included as follows: (7.5, 15, 22.5, 30 kg compost / tree) and biovit fertilizer at a rate of 36 ml/tree of Valencia orange trees. Analysis of the data collected during the study showed that there was a statistical significance in increasing fruit quality different doses of organic and biological fertilization treatments. in this concern 15 kg compost/tree + biovit 36 ml/tree had the best results and improved productivity and fruit quality and it had a significant effect in reducing the added NPK chemical fertilizer by 50% in Valencia orange trees.

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