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1941年恰普曼首先用叶片分析作为胶树营养诊断的手段,以后博菲斯进一步用之于大田。肖罗克斯(1961、1962及1965年)、古哈和纳腊扬纳(1969年)对取样方法和分析结果的解释作了改进。近来,已结合土壤分析和其他农业指标,应用叶片分析来对胶树进行对症施肥。叶片诊断的主要优点是:可确定养分亏缺或养分过多而发生的毒害;可鉴定略低于最适度的营养状况;可鉴定养分的不平衡和对抗作用,这些情况可引起不同程度的减产。
In 1941, Chapman first used leaf analysis as a tool for the diagnosis of gum tree nutrition, which was later used by Boehmess in fields. Shockroots (1961, 1962 and 1965), Guha and Narrayana (1969) made improvements in the interpretation of sampling methods and analysis results. Recently, leaf analysis has been used to symptomatically fertilize gum trees in combination with soil analysis and other agricultural indicators. The main advantages of leaf diagnosis are: • Determining the toxic effects of deficient nutrients or excess nutrients • Identifying slightly below optimal nutrition status • Identifying nutrient imbalances and counter-effects that can cause different levels of yield reduction .