Effect of different amounts of organic humic acid On the quantity and quality of tomato varieties(Lycopersium esculantium

Document Type : original paper

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1 Professor of University

2 Scholar

3 post graduate

Abstract

In order to investigate the effects of humic acid on three tomato varieties, a field experiment was conducted as a split-plot design experiment based on randomized complete block design (RCBD) with 3 replications in Ahmad Abad part in Khorasan Razavi, during 2009-2010 .Two factorial combinations were four levels of humic acid (0, 1, 1.5, and 2 kg.ha-1) and three tomato varieties (Super CH, Estern , Super Chief). According to the results, all characteristics (except fruit pH) were significantly different (P

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