Oxifertirrigación química mediante riego en tomate hidropónico cultivado en invernadero

摘要: The aim of this study was to evaluate the effect hydrogen peroxide (H2O2) as an oxygen source in rhizosphere, grafted tomato (cv. Durinta/cv Maxifor) and using coconut fiber substrate conducted from 2009 2010. Two treatments were used: a control without (T0) other with H2O2 (T1) applied each irrigation. parameters evaluated i- fertigation: concentration ([O2]), pH, electrical conductivity (EC), drainage percentage; ii- growth: basal diameter plant height; iii- yield iv- fruit quality: firmness, Brix degrees, dry weight, pH. average value [O2] irrigation solution through out crop cycle increased 9,92 mg/l at T0 12,1 T1 (P<0,05), meanwhile drained 8,75 9,22 (P<0,05). Although significant differences (P<0.05) reached between during some periods cycle, did not reach critical threshold that would affect proper oxygenation roots. Therefore, there no treatment on growth, productivity quality fruit.