2014 ASHS Annual Conference
	
		
		Peng Zhao
	
							
Peng Zhao
						
	
	Nanjing Agricultural Universtity
	
	
	
	Nanjing
	
	China
	210095
	
	Papers:
	 
	The Characteristic of Seasonal Nitrogen Absorption and Distribution in Pear Trees from N Fertilizers Applied at Different Growing Stages 
	
