Research on the Annual Variation Rules and Correlation of Leaf Nutrient Element Content in Korla Fragrant Pear
WEI Jie, MA Jianjiang, CHEN Jiuhong, JIANG Feng
Journal of Henan Agricultural Sciences . 2020, (3): 121 -128 .  DOI: 10.15933/j.cnki.1004-3268.2020.03.016