Annual change of nitrogen, phosphorus and potassium in soil yield of Ziziphus jujuba cv. Dongzao in same garden
GAO Zhong-hao, WANG Wei, YANG Jing-hui, FENG Guo-hua, WANG Zhi-xue, LI Bing, ZHANG Chao
Journal of Tianjin Agricultural University . 2020, (2): 23 -27 .  DOI: 10.19640/j.cnki.jtau.2020.02.005