Effects of Different Slow-releasing Nitrogen Fertilizers on Growth, Nitrogen Absorption and Nitrogen Use Efficiency of Sweet Potato
1.College of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan 570228, China
2.Institute of Agricultural Resource and Environment, Jiangsu Academy of Agricultural Sciences / Scientific Observing and Experimental Station, Ministry of Agriculture and Rural Affairs (Jiangsu), Nanjing, Jiangsu 210014, China
3.Yantai Hongyuan Biological Fertilizer Co., Ltd., Yantai, Shandong 2640003, China
4.Jingmen Academy of Agriculture Science, Jingmen, Hubei 448000, China
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