IUSS and FAO-GSP invite all Soil Science Societies to support the scientific “Children's booklet contest on salt-affected soils” in the framework of WSD 2021, and invite you to participate https://www.iuss.org/international-decade-of-soils/the- iuss-goes-to-the-school/, https://www.iuss.org/newsroom/ and http://www.fao.org/world-soil-day/booklet-contest/en/