Experimental determination of lethal doses of heat in thermal weed control
M. Mojžiš, I. Vitázek, F. Varga, S. Lindákhttps://doi.org/10.17221/20/2015-RAECitation:Mojžiš M., Vitázek I., Varga F., Lindák S. (2015): Experimental determination of lethal doses of heat in thermal weed control. Res. Agr. Eng., 61: S9-S12.
Thermal weed control performed by weeders working on physical principles is already commonly used on farms dealing with bioproducts. It helps to reduce strenuous human labour and to effectively control weeds and, to some extent, pests and diseases threatening the crops. It also prevents other weeds from spreading by destroying them in the early growth stage. In addition, development of weeds is inhibited when the soil is not being ploughed. Effective deployment of these machines in practice is currently addressed by experts in the field, as well as the possibility of rational use of heat energy while achieving the maximum effect on weeds. This method in particular helps to reduce costs of thermal treatment, which are the key factor limiting widespread deployment of weeders. The paper introduces long-term research based on laboratory and field experiments, which is intended to broaden the knowledge regarding this issue.Keywords:
weed control; non-chemical cultivationReferences:
Abrahám R., Jablonický J. (2007): Measurement of soil compaction in laboratory conditions. In: Trends in Agricultural Engineering. 3rd International Conference TAE 2007, Conference Proceedings, Sept 12–14, 2007, Prague, CUA Prague, 24–27.Geier B., Vogtmann J. (1986): The multiple row brush hoe – a new tool for mechanical weed control. In: Regulation of Weed Population in Modern Production of Vegetable Crops, Stuttgart: 179–193.Lorenz H. (1997): Compendium of growth stage identification keys for mono- and dicotyledonous plants – extended BBCH, part “Phonological growth stages and BBCH – identification keys of grapevine”.Parish S. (1989): Investigations into thermal techniques for weed control. In: Proc. 11th International Congress on Agricultural (CIGR), Dublin, Ireland, 4–8 September 1989: 2151–2156.Rifai M N, Astatkie T, Lacko-Bartosova M, Gadus J (2002): Effect of two different thermal units and three types of mulch on weeds in apple orchards. Journal of Environmental Engineering and Science, 1, 331-338 https://doi.org/10.1139/s02-027