氮、磷、钾对多种作物生长发育以及产量和品质的形成有显著的影响^[7-9], 这些影响在小麦、水稻等粮食作物中已经有大量研究证明, 但在中草药中仅丹参、西洋参、白首乌、牡丹、半夏、穿龙薯蓣、柴胡、川党参、姜黄、麦冬、菘蓝、怀牛膝和温郁金等几种药材有报道^[10-19]。法语翻译植株的营养特性是科学施肥的主要依据, 并且肥料的合理利用又是作物高产优质栽培中重要的栽培措施, 关于槟榔中氮、磷、钾的研究也有些报道, 只是单纯研究这些元素含量情况, 但关于槟榔生长发育以及产量和氮、磷、钾这些营养元素关系的研究未见报道。探索槟榔产量与营养以及黄化病与营养的关系, 指导正常施肥管理, 必须依赖营养诊断的手段。但是至今为止, 还没有人对槟榔的营养诊断做过系统的研究, 尚未见有关槟榔合理施肥及营养特性等方面的研究报道。为此, 本试验以海南岛屯昌、琼海、万宁、陵水、定安、三亚等主要槟榔产区的槟榔叶片为材料, 对各个生产管理水平中不同生长年限正常槟榔以及黄化槟榔叶片中氮、磷、钾吸收与含量变化趋势进行分析,在研究这些营养元素在不同产量与生长年限正常槟榔以及黄化树叶片中的规律的基础上, 对槟榔产量与营养含量、黄化病与营养含量关系进行探讨, 并揭示植物其对营养的需求规律, 为制定合理栽培措施提供依据。德语翻译

Nitrogen, phosphorus and potassium have significant influence on growth and development of many crops and formation of yield and quality ^[7-9], these effects have been proved by a lot of research in wheat, paddy rice and other grain crops, but only has been reported in Salvia miltiorrhiza Bunge, Panax quinquefolium L., Cynanchum bungei Decne, peony, Pinellia ternate, Dioscorea nipponica Makino, Bupleurum chinense DC., Codonopsis tangshen Oliv., Curcuma longa L., Liriope spicata (Thunb.) Lour, Isatis indigotica Fort., Achgranthes bidcntata Blume, Curcuma wenyujin and other Chinese herb medicines ^[10-19]. Nutritional characteristics of plant is main basis for scientific fertilization, reasonable utilization of fertilizer is also an important cultivation measures in high yield and high quality crop cultivation; there are some reports on research of nitrogen, phosphorus and potassium in areca catechu L, only simply research the content of these elements, but doesn’t report the growth, development and yield of Areca catechu L. and relationship between the nutrient elements (nitrogen, phosphorus and potassium). To discuss the relationship between yield of Areca catechu L. and nutrition, relationship between yellows and nutrition, guide the normal fertilization management, nutrition diagnosis means must be depended on. Until now, nobody does the systemic research on nutrition diagnosis of areca catechu L; research on reasonable fertilization and nutritional characteristics of Areca catechu L. has not yet been reported. Therefore, the test takes the Areca catechu L. of Tunchang County, Qionghai City, Wanning City, Lingshui County, Ding’an County and Sanya City, Hainan Island as the material, analyzes the nitrogen, phosphorus and potassium absorption and content change trend of normal Areca catechu L. and yellow leaf disease tree under different production management levels and different growth years; on the basis of researching the rule of these nutrient elements in normal Areca catechu L. and yellow leaf disease tree under different yields and growth years, discuss the relationship between yield and nutrient content of areca catechu L, relationship between chlorosis and nutrient content, and reveal the rule of plant’s nutritional demand, provide the basis for formulating reasonable cultivation measures.