Agronomy Science, przyrodniczy lublin, czasopisma up, czasopisma uniwersytet przyrodniczy lublin
The study aimed to assess and compare the potential effects of the use of plant protection products, based on their emissivity and toxicity, in winter wheat in different soil tillage systems. Material for the analyses consisted of data on the chemical protection of winter wheat in conventional tillage, reduced tillage and direct sowing, collected from 15 selected farms in the Wielkopolskie voivodeship, in the years 2015–2017. The study was carried out by the life cycle assessment (LCA) methodology. Amounts of environmental emissions of active substances were determined using the PestLCI 2.08 model. Based on estimated emissions, the values of the freshwater ecotoxicity potential (FETP) in chemical protection of winter wheat in three tillage systems were calculated using the USEtox 2.02 model. The study showed that in the analyzed soil tillage systems, the largest stream of environmental emission of active substances was constituted by the mass of active substances available for leaching and surface runoff, followed by emissions to air and the mass of substances permeating into groundwater. The highest value of FETP was noted in direct sowing (10365.7 CTUe·ha–1). A significantly lower value of this indicator was found in the conventional and reduced tillage (2512.4 CTUe·ha–1 and 2264.6 CTUe·ha–1, respectively).
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