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果树营养诊断与果园现代化管理有密切关系,它有助于我们了解果树营养的盈亏状况,使施肥工作科学化。目前常用的诊断方法有目视诊断法、土壤化学分析法和叶分析法。其中以叶分析法较为理想,能比较客观地、全面地反映果树树体矿质营养水平的状况,尤其是当几种元素缺乏或过量出现混合症状时,可以及早作出判断。叶分析法诊断果树营养状况的首要条件是叶样的代表性和分析的精确性。国外在这方面已有不少介绍,但国内报导不多。本文是我们叶分析技术的三年工作总结,以期为今后开展果树营养诊断摸索经验,掌握方法。
Fruit tree nutrition diagnosis and modern management of orchards are closely related, it helps us to understand the profit and loss of fruit tree nutrition status, so fertilization work scientifically. Currently used diagnostic methods are visual diagnosis, soil chemical analysis and leaf analysis. Among them, the leaf analysis method is ideal, which can objectively and comprehensively reflect the status of mineral nutrition of fruit tree trees, especially when several elements lack or excessive mixed symptoms can be judged as early as possible. Leaf Analysis The primary condition for the diagnosis of fruit tree nutritional status is leaf representation and analytical accuracy. Abroad has introduced a lot in this regard, but not many domestic reports. This article is a summary of our three-year work on leaf analysis technology, with a view to gaining experience and mastering methods for fruit tree nutrition diagnosis in the future.