Annals of BotanyNews in Focus Reducing a root’s oxygen supply makes it more difficult to examine nutrient stresses Often the perennial C4 grass Urochloa humidicola is planted on infertile acidic and waterlogging-prone soils of tropical America. But what effect does that waterlogging have on its growth? Juan de la Cruz JimΓ©nez and... Alun SaltJune 5, 2019