Effects of Sheep Excrement Application with Chemical Fertilizers on Dynamic Quality and Mineral Nutrition of Pitaya

• LIU Hongming, 
• ZHANG Xiaomei, 
• LI Jinxue, 
• LONG Chunrui, 
• YANG Shiping, 
• SHEN Zhengsong, 
• LI Enyong, 
• GAO Junyan