ABSTRACT
Correction of iron deficiency in peach trees under drip irrition

Bruno Razeto M.1, Gabriel Sellés van Sch.1, Claudio Stockle L.1 y José Cobo F.2
 

Difterent treatments were tested to control iron deficiency in drip irrigated peach trees in a Nemaguard orchard located at the Antumapu Experirnent Station, College of Agronomy, Veterinary and Forestry Sciences, University of Chile (Santiago, Chile). Treatments consisted of applications, under the dripppers of each tree, of the following chemicals in water: 150 g Fe-EDDHA, 1.200 g iron sulfate and 8 It sulfuric acid. Chelate reduced iron chlorosis quickly and consistently. Sulfuric acid also decreased leaf chiorosis although less markedly and in a slower way. The Iatter treatment lowered soil pH in 0.5 units at 20cm of depth. Iron sulfate did not hayo any effect.

Keywords:
1 Facultad de Ciencias Agrarias, Veterinarias y Forestales, Universidad de Chile, Casilla 1004, Santiago, Chile.
2 Ing. Agr. Casilla 1004, Santiago, Chile.