Impact of the nutritional status on yield of nine mango cultivars grown under farm conditions at Giza Governorate, Egypt.
Shaaban S. H. A., Shaaban M. M.
Author Affiliation: Department of Fertilization Technology, National Research Centre, Cairo, Egypt.
The Journal of American Science 8 : 304-310
Abstract : A field study was carried out at some private farms in Giza Governorate, Egypt during seasons 2006-2010 with the nine mango cultivars: Zebda, Langra, Fagri Kalan, Hindi Khassa, Misk, Hindy Sinnara, Ewais, Alphons and Golk. The study aimed at investigating nutrient status of the orchards grown under flood irrigation system to discover deficiencies and suggest solutions. The obtained data revealed that orchard's soils were alkaline in reaction, sandy loam in texture in the surface layer (0-30 cm) and sandy in texture in the subsurface layer (30-60 cm) with deficient levels of available macro and micronutrients in the absorption root zone. Leaf analysis showed that nutrients concentration in the sufficient range but Ca, Mn and Zn were severely deficient along the course of the study which became limiting factors led to very low yields. The highest yield upon all was obtain by the cultivar Zebda which suggests its higher resistance to unfavorable soil conditions and nutrient deficiencies, while the cultivar Alphons gave the lowest yield which may indicates its higher sensitivity. More studies should be done to establish suitable fertilizer programs depend upon soil test and leaf analysis, taking in consideration choice of the efficient cultivars for nutrient deficiencies to be cultivated.