Potential of <i>Artemisia dubia</i> Wall Biomass for Natural Crop Protection
Aušra Bakšinskaitė | Vita Tilvikiene | Karolina Barčauskaitė | Dalia Feizienė
The Green Deal strategy has the very ambitious goal of transforming the European Union into the first climate-neutral continent by 2050. For the agricultural sector, one of the main challenges is to reduce the use of synthetic fertilizers and pesticides. Crop protection measures aim to maintain and ensure certain standards of yield and quality, which are generally achieved by the control of pests, diseases, and weeds. One of the possibilities to reduce the use of pesticides could be allelopathic plants, which are not only potential sources of allelochemicals but also renewable biomass sources. The aim of this study was to analyze the productivity of <i>Artemisia dubia</i> Wall and evaluate the allelopathic effects of biomass on crops and weeds. It was determined that the biomass productivity of <i>A. dubia</i> varied from 2 to 18 t ha<sup>−1</sup>, depending on how many times it is cut during the growing season and the fertilizer rate. <i>A. dubia</i> has allelopathic properties, which were verified using an aqueous extract and can completely suppress the germination of <i>Taraxacum officinale</i> seeds. Young plants harvested in the middle of summer were characterized by the highest number of phenolic compounds. This shows the strong allelopathic effect of <i>A. dubia</i> biomass on other plants.
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