Search results for "treatment frequency index"
showing 2 items of 2 documents
Reduced herbicide use does not increase crop yield loss if it is compensated by alternative preventive and curative measures
2018
Herbicide use must be reduced because of environmental and health issues. This raises the question of whether weeds and the resulting crop yield loss will increase. Previous studies analysing relationships between herbicide use intensity, weeds and yield loss suffer from methodological shortcomings in terms of weed flora and farm diversity as well as temporal scales. Here, we collected data on 272 arable cropping systems from one Spanish and six French regions, from farm surveys, the Biovigilance-Flore network, expert opinion, cropping system trials, crop advisors and scientists. Each system was simulated over 27 years and with 10 weather repetitions, using the virtual-field model FlorSys. …
Reducing pesticide use through crop diversification
2022
Managing pests while reducing pesticide use is a major challenge to improve cropping system sustainability. Crop diversification appears as a promising tool to promote ecosystem services such as pest control (Tamburini et al., 2020; Beillouin et al., 2021). Lechenet et al. (2016) identified crop sequence and crop diversity, among other management practices, as important factors to reduce pesticide use in most French production situations. Crop diversification could allow the reduction of pesticide use at the cropping system level through: i) the introduction of crops with low intrinsic pesticide use (i.e. grassland, sunflower,…) and ii) the disruption of biological cycles of pests and disea…