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根据植物外部形态、色泽的变化来辨别植物营养状况的研究,很早就为人们所注意。二十世纪以来,随着化学、生物学的发展,Hall、Wallace、Сабинин、Lagale等相继用化学分析的方法,测定植株分流液中三要素的含量,作为判断植物营养条件的基础。二十世纪的三十年代和四十年代,植物营养诊断的工作,得到了许多有关科学工作者的注意,如英国的Roach、Nicholas,美国的Carolus、Ulrich、Tomson,法国的H.Lagatn、L.Moame,瑞典的Lundeg(?)rdb等都发表过大量的研究资料,对养分的吸收、运输状态有了比较清楚的了解。因此对分析样本的选择和确定合适的诊断部位方面有了发展。Lagatn和Moame最早根据同化器官能够反映植物的需肥状况的特点,建议利用
According to the external morphology of plants, color changes to identify the status of plant nutrition research, people have long been noted. Since the twentieth century, with the development of chemistry and biology, Hall, Wallace, Сабинин, Lagale et al. Have used chemical analysis methods to determine the content of three elements in plant fluid as the basis for judging plant nutrition conditions. The work of diagnosing plant nutrition in the 1930s and 1940s gained much attention from scientists such as Roach and Nicholas in the United Kingdom, Carolus, Ulrich and Tomson in the United States, H. Lagatn and L in France .Moame, Sweden’s Lundeg (?) Rdb have published a large number of research data on nutrient absorption, transport status has a more clear understanding. There has therefore been a development in the choice of analytical samples and in the identification of suitable diagnostic sites. Lagatn and Moame were first proposed based on the characteristics that assimilating organs can reflect the state of fertilizer demand of plants