Keyword nitrogen fertilizer
 
ORIGINAL RESEARCH
 

Effect of Nitrogen Fertilizer and Seeding Rate on Yield of Alfalfa and Weeds

Feng He1, Kaiyun Xie2, Xianglin Li1
Pol. J. Environ. Stud. 2018;27(2):647–653
 
ORIGINAL RESEARCH
 

Assessment of Greenhouse Gas Emissions in Winter Wheat Farms Using Data Envelopment Analysis Approach

Alina Syp1, Antoni Faber1, Magdalena Borzęcka-Walker1, Dariusz Osuch2
Pol. J. Environ. Stud. 2015;24(5):2197–2203
 
eISSN:2083-5906
ISSN:1230-1485