Ever decreasing amounts of plant-protection products are being used in field crops; however, the quantity alone does not determine the risk for the environment, as discussed in a new Agroscope study on the use and risk of plant-protection products in Swiss field crops.
Around one-quarter of the utilised agricultural area in Switzerland is drained. Plant-protection products (PPPs) may enter watercourses via this route. Agroscope analysed the influencing factors and evaluated measures against PPP loss.
The risk of nitrate leaching is higher in field vegetable production than in arable crops or grassland. Different species of vegetables have different leaching potentials, which can be reduced through appropriate management.