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361-366 E. Nugis, T. Võsa, K.Vennik, H. Meripõld, J. Kuht, M. Müüripeal
Results of observations of damages to field and landscape
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Results of observations of damages to field and landscape

E. Nugis¹, T. Võsa¹, K.Vennik², H. Meripõld¹, J. Kuht³, M. Müüripeal¹

¹Estonian Research Institute of Agriculture, Teaduse 13, Saku 75501, Estonia; e-mail:edvin.nugis@eria.ee, taavi.vosa@eria.ee.
²Tartu University, Faculty of Science and Technology, Vanemuise 46, Tartu 50090; e-mail: kersti.vennik@ksk.edu.ee
³Estonian University of Life Sciences, Kreutzwaldi 1, Tartu 51014; e-mail:jaan.kuht@emu.ee


It is a fact that crop growth conditions vary greatly within the same field. Provisionally actual growth conditions are made up of many components, i.e. variation of natural conditions (climate & soil), results of effects of machinery on soil (soil compaction) and unfavourable conditions for plant growing. In Estonia rather widely used ATV’s are causing remarkable damage to landscapes.All collected data were geo-referenced by means of a GPS-receiver and post-processed forposition correction. For All Terrain Vehicle (ATV) damage assessment the trajectory was recorded. Both the area and forms of damages were assessed for damaged sites, (e.g.) damage to potato by Colorado beetles. The collected data were compared to the digital soil map.Economic loss on the average, due to unfavourable conditions for plant growth, in thecase of winter rye "Portal" was 131 euros per ha, for medicago 18.5 euros per ha, for spring barley "Anni" 1000 euros per ha and for potato “Ando” 27.1 euros per ha.

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