Impacts of Humic Product Application On Yields of Potato and Other Field Crops.
Daniel C. Olk, USDA-ARS National Laboratory for Agriculture and the Environment, Ames, IA, Ahmed M. Mosa, Soils Department, Faculty of Agriculture, Mansoura University, Mansoura, Egypt and Heidi Waldrip, USDA-ARS Conservation and Production Research Lab, Bushland, TX