To what extent can biofertilizers replace chemical fertilizers for Valencia Orange (Citrus sinensis L. Osbeck) trees growing in sandy soil conditions?

Abou Elyazid, Doaa Mahmoud; El-Morshedy, Farouk Abd Elhamid; Shaaban, Islam Abdo

doi:10.21608/ejss.2025.398054.2224

To what extent can biofertilizers replace chemical fertilizers for Valencia Orange (Citrus sinensis L. Osbeck) trees growing in sandy soil conditions?

Document Type : Original Article

Authors

Department of Horticulture , Faculty of Agriculture, Kafrelsheikh university

10.21608/ejss.2025.398054.2224

Abstract

Excessive consumption of chemical fertilizers in citrus orchards and other fruit crops has caused many negative effects on the surrounding ecosystem, soil composition, fruit quality, and sustainability. in this investigation, two sources of N, k biofertilezers were added as partial alternative of mineral nitrogen at level 100, 75,50 % of its recommended dose and the effet of this on Valencia orange trees vegetative growth, productivity and fruit quality were studeid . the resulls indicated that using bio N with or without Bio k fertilizer with 75% or 50 % of recommended N fertilizer succeded in enhancing most of vegetative , yield and fruit parameters . Moreover, the applying of biofertilizers enhanced the mineral contents in leaves .The purpose of this study is to increase Valencia orange trees' capacity for growth in sandy soil without using an excessive amount of N mineral fertilizer.

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