关键词: 李仪祉, 李仪祉, 堤防, 水利

Abstract:

With the expansion of Areca catechu L. cultivated area and its industrial development, soil nutrients of Areca catechu L., such as organic matter, nitrogen, phosphorus and potassium and other nutritional elements greatly decreased， so that the plant didn’t get adequate nutrients, and not to meet the requirements of plant growth and fruit, resulting in a low yield. When in serious shortage of nutrient elements, Areca catechu L. became yellow and has low resistivity in desease and pest, this caused life-span of the plant shorten. Therefore, study on soil conditions and nutrient status of different regions normal Areca catechu L. in Hainan, and analysis of characteristics of soil and Areca catechu L. nutrients, should be of great concern, aimed to make a reasonable and sciense fertilizer measure and timely added to the palnt nutrients, thereby increasing the Areca catechu L. yield and quality, and enhancing the ability of resisting disease and pest. Therefore, this article summarized the current status of Areca catechu L. soil fertility, the nutritional characteristics of Areca catechu L. plant, and the effect of soil and plant nutrients on yellow leaf diseases of Areca catechu L.