Effects of chicken manure and earthworm fertilizer on growth and fruit quality of greenhouse tomato

Abstract

Production of organic food is not allowed to use chemical fertilizers. This study evaluated two organic fertilizers including chicken manure and earthworm fertilizer on growth and fruit quality of greenhouse tomato (Lycopersicum esculentum). A tomato variety, Tep Pratarn, was planted in a completely randomized design with three replications in greenhouse. Five treatments consisted of untreated control, chicken manure at the rate of 12.5 tons ha-1, chicken manure at the rate of 25 tons ha-1, earthworm fertilizer at the rate of 12.5 tons ha-1 and earthworm fertilizer at the rate of 25 tons ha-1. Application of earthworm fertilizer at the rate of 25 tons ha-1 had the highest stem diameter, leaf size, flower number, fruit number and fruit size. Application of organic fertilizers for production of tomato in greenhouse is discussed.