ORIGINAL RESEARCH
		
		 
	
	
	
		Wheat Straw-Derived Biochar Enhanced
Nitrification in a Calcareous Clay Soil
	
	
		Chaoxu Wang1, 2, Shaorong Chen1, 2, Lijun Wu1, Feng Zhang1, 2, Jianguo Cui1, 2
		
			
			Pol. J. Environ. Stud. 2018;27(3):1297-1305
		
		
			
	
	 
	
		
		
 
		
		
	
			ORIGINAL RESEARCH
		
		 
	
	
	
		Short-Term Influences of Peanut-Biochar
Addition on Abandoned Orchard Soil Organic N
Mineralization in North China
	
	
		Jingjing Chang, Xianxiang Luo, Mingchan Li, Zhenyu Wang, Hao Zheng
		
			
			Pol. J. Environ. Stud. 2016;25(1):67-72
		
		
			
	
	 
	
		
		
 
		
		
	
			ORIGINAL RESEARCH
		
		 
	
	
	
		Urease Activity in Soil Contaminated
with Polycyclic Aromatic Hydrocarbons
	
	
		Aneta Lipińska, Jan Kucharski, Jadwiga Wyszkowska
		
			
			Pol. J. Environ. Stud. 2013;22(5):1393-1400
		
		
			
	
	 
	
		
		
 
		
		
	
			ORIGINAL RESEARCH
		
		 
	
	
	
		Development of Microbial Biomass and Enzyme
Activities in Mine Soils
	
	
		Marcin Chodak1, Maria Niklińska2
		
			
			Pol. J. Environ. Stud. 2012;21(3):569-577