Effects of foliar application of Zn fertilizer on nitrate and nitrate reductase (NR) in Lettuce were studied by methods of field experiment and lab analysis.

• 摘要通过田间试验和室内化学分析，研究了叶面喷施锌肥对生菜各器官中硝酸盐含量和硝酸还原酶活性的影响。