The Influence of Decreasing Npk Mineral Fertilizers on Valencia Orange Plants on Vegetative Growth and Nutritional Condition | ||||
| Annals of Agricultural Science, Moshtohor | ||||
| Volume 63, Issue 1, March 2025, Page 105-114 PDF (843.96 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/assjm.2025.352225.1340 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
M.G. Abo-Gabien  ; Hamed elzaabalawy albadawy1; Sherif Fathy EL-Gioushy 2
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| 1Hort. Dept., Fac. Agric., Benha Univ., Egypt. | ||||
| 2Horticulture Department, Faculty of Agriculture (Moshtohor), Benha University, Egypt | ||||
| Abstract | ||||
| This study was conducted on fruit trees of the Valencia orange trees variety grafted on Volkamariana rootstock growing: conditions of desert lands and ground water during two successive (2021/2022 and 2022/2023)- on a private farm (Wadi El Natroun),in Beheira Governorate, Egypt. The experiment was studied the effectiveness of reducing mineral fertilizer NPK using organic compost fertilizer and effective microorganisms in improving growth and nutritional status of summer orange trees at a rate of (7.5, 15, 22.5 and 30 kg compost / tree), and Bio vit fertilizer (36 ml/tree). Among the results obtained is a significant improvement effects biofertilization and organic fertilization methods on the nutritional status and growth of trees. Analysis of the data collected during the study showed that there was a statistical significance in increasing vegetative growth and leaf chemical composition with different doses of organic and biological fertilization treatments. The compination between 15kg of compost, biofertilizer and 50% NPK chemical fertilizer had the best results in vegetative growth and nutritional status. As well as the results obtained can be recommended. | ||||
| Keywords | ||||
| Valencia orange trees; Bio-Fertilizer; Organic fertilizer as compost; vegetative growth; canopy volume nutritional -status | ||||
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