论文部分内容阅读
“叶焦病”是闽南地区芒果（Ｍａｎｇｉｆｅｒａ ｉｎｄｉｃａ Ｌ．）的一种常见病．对不同地点受害植物的叶片及土壤理化指标的分析表明：①土壤酸度、总Ｎ、总Ｐ、Ｋ、Ｎａ等含量与芒果受害程度无关；②受害程度与叶片Ｃｌ、Ｋ含量、３０—４０ ｃｍ土壤Ｃｌ含量及总盐含量呈显著正相关；③造成厦门地区芒果“叶焦病”的主要原因是盐害，其中起主要作用的是Ｃｌ；④芒果是一种对盐比较敏感的植物，土壤总盐含量达０．４８９‰时仍可正常生长，高于此含量则出现受害症状．
“Leaf scorch” is a common disease of Mangifera indica L. in southern Fujian. The analysis of the leaf and soil physical and chemical indexes of the affected plants in different locations showed that: ①The content of soil acidity, total N, total P, K, Na and other factors had nothing to do with the degree of mango damage; ②The damage degree was related to the contents of Cl and K, Soil Cl content and total salt content was significantly positive correlation; ③ Xiamen mango “leaf scorch” is the main reason for salt damage, which played a major role in Cl; ④ mango is a salt sensitive plants, soil The total salt content of 0.489 ‰ can still be normal growth, higher than this content appears symptoms of victimization.