Organic mulches in vegetable crops

Abstract

The influence of organic mulches has been studied thoroughly worldwide. In contrast, in Lithuania there are a lack of investigations on this topic. Especially in using new organic materials for mulching under the changing climate conditions. Investigations with different mulches in different crops are actual. For this reason, investigations were carried out in Lithuania, Mažeikiai district, Zastaučiai, in 2018–2020. The aim was to investigate the influence of different organic remains used for mulching in vegetable crops on weed density and vegetable yield. Mulches were investigated in field experiment. Weeds were counted in each experimental plot in squares of 0.1 m-2. Crop yield was determined by weighing In 2018 organic mulches significantly affected the yiel of Beta vulgaris var. atrorubra. The highest yield was investigated in plots mulched with grass mulch. In plots covered with buckwheat husk mulch significantly lower Beta vulgaris var. atrorubra yied was investigated. The similar results were obtained in 2019 when was grown Allium cepa. The effect of organic mulches on weed density in crops was different. The tendency of lower weed density in mulched plots was obtained. Buckweat husk mulch influenced crops and weeds due to its allelopathic properties. Organic mulches influenced weed density in vegetable crops. The significant influence of mulches and there residual effect was established on crop yield. The effect of organic mulches is wide and diverse.