Assimilation surface and photosynthetic activity evaluation of winter wheat planting according to forecrops and mineral fertilizersAleksandr Gurin, Galina Ignatova, Elena Stepanova, Aleksey Tarakin and Natalya VelkovaE3S Web Conf., 254 (2021) 05001DOI: https://doi.org/10.1051/e3sconf/202125405001