@incollection{Fotyma11, author = {Agnieszka Rutkowska and Mariusz Fotyma}, title = {Mineral Nitrogen as a Universal Soil Test to Predict Plant N Requirements and Ground Water Pollution – Case Study for Poland}, booktitle = {Principles, Application and Assessment in Soil Science}, publisher = {IntechOpen}, address = {Rijeka}, year = {2011}, editor = {E. Burcu Özkaraova Güngör}, chapter = {17}, doi = {10.5772/29397}, url = {https://doi.org/10.5772/29397} }