Reducing Mineral N in Ewais Mango Orchards Using different Organic Fertilization Sources | ||||
| Journal of Plant Production | ||||
| Article 6, Volume 12, Issue 11, November 2021, Page 1173-1178 PDF (854.84 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2021.207291 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Heba F. S. Ibrahim 
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| Department of Horticulture, Fac. of Agriculture, Minia University, Ismailia – Egypt | ||||
| Abstract | ||||
| This study was carried out during the 2018, 2019, and 2020 seasons, at private Ewaise mango orchard located at west Samalout district, Minia Governorate, Egypt. An attempt to reduce mineral nitrogen fertilizers partially in Ewaise mango trees orchards under sandy soil conditions by application of a different organic fertilization namely (plant compost, chickens manure, and pigeon manure). Using nitrogen fertilization with 70% as a mineral source and 30% as organic source was very effective in improving all growth characteristics and yield per tree. Compared with using nitrogen completely in inorganic form and 40% inorganic plus 60% organic, a gradual increase in leaf chemical composition as well as physical and chemical characteristics of fruits reducing the percentages of inorganic nitrogen from 100% to 40% and at the same time increasing the percentages of organic fertilizers from 30% to 60% caused a gradual increase in the quality of the fruit increasing in fruit weight, TSS%, total sugars, reducing sugars and vitamin C and decreasing percentage seed weight, fruit peel % and total acidity%.The best source of organic fertilizer was plant compost, chicken manure and pigeon manure in ascending order. However , to improve Ewaise mango trees yield quantitively and qualitatively it is advisable to supply the trees with the suitable nitrogen )1000 g N / tree - year) as 40% inorganic (Ammonium nitrate) + 60% organic (20% plant compost + 20 chicken manure + 20% pigeon manure) for producing organic fruits. | ||||
| Keywords | ||||
| organic rertilization; plant compost; ammonium nitrate; chickens manure; ewais mango | ||||
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