Effect of Some Foliar Applications of Nutrients on Fruit Set and Yield of Valencia Orange Trees in Newly Grown Orchards | ||||
| Egyptian Journal of Horticulture | ||||
| Article 13, Volume 43, Issue 2, December 2016, Page 415-426 PDF (457.25 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejoh.2016.3562 | ||||
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| Abstract | ||||
| THE RECENT investigation was conducted in two successive seasons.2012 & 2013 in commercial citrus orchard of 5-year-old Valencia orange (Citrus sinensis L. Osbek). Trees grafted on Volkamer lemon (Citrus Volkameriana) rootstock planted on 6 x 4m apart and located in Kafr Daoad, Behiragov., Egypt. The objective was to study the effect of spraying trees, three times; during winter time (mid of January) , full bloom and after two weeks with eight treatments of low biuret urea (LBU 1%), amino acids (AA 1%), calcium-boron (Ca-B 1.5%) and their combinations on the formation of inflorescences leaves, tree canopy volume, fruit set%, some fruit physical characteristics and the final yield. The combination of (LBU1%+Ca-B1.5%+AA1%) showed the best results with all the studied parameters in particular leafy inflorescence density and final yield. | ||||
| Keywords | ||||
| Valencia orange; nutrition; low biuret urea; Amino acids; foliar spray | ||||
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