
Agronomy Science, przyrodniczy lublin, czasopisma up, czasopisma uniwersytet przyrodniczy lublin
The present work is based on a field experiment carried out in the years 2002–2004. The soil composition was that of weak loamy sand. Two tillage systems were compared, namely conventional (revising ploughing + fall ploughing + harrowing + cultivating + harrowing) and simplified (revising ploughing + cultivating) tillage, as well as seven weeding methods including the application of the following herbicides (Plateen 41,5 WG, Plateen 41,5 WG + Fusilade Forte 150 EC, Plateen 41,5 WG + Fusilade Forte 150 EC + Atpolan 80 EC, Barox 460 SL, Barox 460 SL + Fusilade Forte 150 EC, Barox 460 SL + Fusilade Forte 150 EC + Atpolan 80 EC, control object). The content of calcium and magnesium in weed dry matter before tubers harvest significantly depended on soil tillage methods, weed control methods and weather conditions. Uptake of macronutrients by weeds from an area of 1 hectare depended on the experimental factors, weeds biomass and their chemical composition.
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