Effects of DTPA, HEDTA, and EDDS on the Growth of Watermelon and Chemical Properties of Plastic Film House Soil

A chelating agent helps crops to reuse as nutrients by mobilizing salts from the soil. This study was conducted evaluate effects of Diethylenetriamine pentaacetic acid (DTPA), N-(2-hydroxyethyl)-ethylene diaminetriacetic (HEDTA), and Ethylene diamine disuccininc (EDDS) for improving plant growth reusing accumulated in soils plastic film house. Two experiments were carried out follows: i) For incubation test, availability examined treated with distilled water, 1 mM DTPA, HEDTA EDDS solutions. ii) In pot impacts watermelon response adding 0.5, 1, 5 application agents increased soil following order : DTPA ≒ > water. However, biomass tended be highest mM. The absorption amount N, P, K crop similar that NPK treatment K, Ca, Mg, Fe high. Soil Electrical conductivity (EC) showed a 66% decrease compared no treatment. These results could improved growth. Further research is needed on field scale.Difference (DTPA, HEDTA, EDDS) their concentrations (0.5, mM) salt-accumulated under scale (†Duncan’s multiple range test (p < 0.05), ‡Relative percent other treatments NPK).