ABSTRACT
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| José RodrÃguez S.1, Jorge GarcÃa Huidobro2, Gonzalo Gil S.3, Domingo Suárez F.1, Horacio Urzúa S.2 y Marcela Crespo A.4 |
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A nutritional survey was conducted in 50 irrigated peach orchards of Aconcagua valley. Varieties studied were: Pomona, Reina Elena, Fortuna, Early Elberta and RÃo Oso.
Ninety four samples of recently matured leaves were taken from current season growth, 100-125 days after fullbloom.
The contents of N, P, Ca, Mg, Fe, Zn, Cu, Mn, K and B in the leaves were determined. Soil samples were analysed for pH, organic matter, electric conductivity (salts), texture, available P, Ca, K, Mg, Na and carbonates.
Deficiencies of N, Zn, K and Mn were found, but those of N and Zn were the most important. The level of all other nutrients was found to be adequate. |
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1Ing. Agr., Dr. e Ing. Agr., M. S., respectivamente, Departamento de EdafologÃa, Escuela de AgronomÃa, Universidad Católica de Chile. Casilla 114-D, Santiago, Chile.
2Ing. Agr., Departamento de EdafologÃa, Escuela de AgronomÃa, Universidad Católica de Chile. Casilla 114-D, Santiago, Chile.
3Ing. Agr., M. S., Departamento de Frutales y Viñas, Escuela de AgronomÃa, Universidad Católica de Chile. Casilla 114-D, Santiago, Chile.
4Ing. Agr., Monseñor Edwards 2166, Santiago, Chile. |
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