Nutritive status of mango orchards grown in reclaimed soils in Egypt
1999
El-Fouly, M.M. | El-Sayed, A.A.(National Research Centre, Dokki (Egypt). Agricultural and Biology Research Div.)
Survey study was conducted in El-Quata region, Giza as one of the major mango cultivation area in Egypt to evaluate macro and micronutrients status of mango orchards to define potential correlation between soil parameters and leaf element content. Surface and sub-surface soil samples as well as leaf samples were collected from different orchards representing the area. Soil physical and chemical properties as well as nutritive status were measured. The results indicated that soil texture was ranged between sandy to sandy clay loam in both soil layers pH was high in all collected soil samples. It was more than 8 and reached 9 or more in few orchards. Neither CaCO3 nor salinity problems were observed and low organic matter contents were found in both the surface and sub-surface layers. P in soil ranged between medium to high in the surface layer and high in the sub-surface one. Magnesium and manganese were between low to medium in both layers. Zince was low to medium in surface and medium to high in sub-surface soil layer. Cu was high in both soil layers. In leaves, N ranged between sufficient to high, while P and low in 85 percent of collected leaf samples, K was low in 10 percent and Mn was low in 4 percent of the samples. Cu was very high in all leaf samples probably to the use of fungicides containing capper. Some correlation's were found between soil characteristics and leaf nutrients.
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