Effects of organic mulching materials on the yield and quality of onion grown under organic conditions [Organik koşullar altinda yetiştirilen soğan çeşitlerinin verim ve kalitesi üzerine organik malç materyallerinin etkileri]

The experiment was carried out in the experimental fields of Odemis Technical Training College, Ege University in randomized block design with three replications. 2×2 m plots have been created as 4 m2 in size and seeds and seedlings of 4 different onion varieties were used in the study. Organic plots with animal manure, chicken manure, straw and stalk or with no application as control were used. The effects of mulching on onion yield and quality were investigated. In the study, yield and quality criteria (such as total yield, bulb width, bulb height, number of storage leaves, number of shoot tips, the number of dried leaves and the average bulb weights) were investigated. When examining the effects of the treatments on yield; direct sowing method yielded between 18988 (control)-19420 kg ha-1 (manure) and seedling production was between 18702 (control)-20358 kg ha-1 (manure). © 2016, Centenary University. All rights reserved.