Effects of liming and nitrogen fertilizer application on soil acidity and gaseous nitrogen oxide emissions in grassland systems / 
Ed. Oene Oenema and Andrzej Sapek. 
 - Falenty :  Institute for Land Reclamation and Grassland Farming,  2000. 
<br/><br/>Poland Agriculture and Water Quality Protection. 
<br/><br/><label>ISBN: </label>8385735909