ORIGINAL RESEARCH
		
		 
	
	
	
		Improving Water Productivity and Reducing
Nutrient Losses by Controlled Irrigation
and Drainage in Paddy Fields
	
	
		Shikai Gao1, Shuangen Yu1, Mei Wang1, Jiajia Meng1, 2, Shuhai Tang2, Jihui Ding1, Si Li1, Zimei Miao3
		
			
			Pol. J. Environ. Stud. 2018;27(3):1049-1059
		
		
			
	
	 
	
		
		
 
		
		
	
			ORIGINAL RESEARCH
		
		 
	
	
	
		Impact of Alternate Drought and Flooding
Stress on Water Use, and Nitrogen and Phosphorus
Losses in a Paddy Field
	
	
		Mei Wang, Shuangen Yu, Guangcheng Shao, Shikai Gao, Jiao Wang, Yidi Zhang
		
			
			Pol. J. Environ. Stud. 2018;27(1):345-355