Prof. Witold Grzebisz is a Professor at the Department of Agricultural Chemistry and Environmental Biogeochemistry, Poznan University of Life Sciences. He obtained his Master's degree in Geography and Earth Sciences at the Adam Mickiewicz University in 1976. In 1978, He obtained a masterr's degree in agriculture from the Life Sciences Univeristy in Poznań, Poland. His research interests include Agriculture, Soil Fertility, Soil Analysis, Plant Nutrition, Crop Management, Fertilizers, Sustainable Agriculture, Crop Production, and Organic Farming and Environment. He is an author of more than 120 publications in international peer-reviewed journals.