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引言龙眼是我国南方名贵特产,它和荔枝并列为无患子科中的两种重要果树。实践证明,龙眼对华南丘陵山地的适应性强,性较粗生,栽培管理亦不甚苛求。然而,正因为它具有上述特点,长期以来,果农栽培多较粗放,施肥技术则依传统经验,因而在施肥上不同程度地存在着盲目性。鉴于涉及龙眼营养研究,包括矿质元素缺乏的试验报道极为罕见,为此,我们于1980—1981年,进行了龙眼幼苗缺素的初步试验,试图通过不同缺素处理,明确其所导致的病症,植株生长状况,以及各处理的叶片元素含量。以提供大田营养研究之参考。
Introduction Longan is China’s southern specialty, it and litchi side by side as the two important fruit trees in the family. Practice has proved that longan hilly mountainous areas of South China adaptability, more crude, cultivation and management is not very demanding. However, precisely because of its above-mentioned characteristics, cultivation of fruit growers has been more extensive for a long time and fertilization techniques have been based on traditional experience. Therefore, there are blindnesses to varying degrees on fertilization. In view of the extremely rare reports of longan nutrition research involving the lack of mineral elements, we conducted a preliminary trial of longan seedling deficiency from 1980 to 1981 in an effort to clarify the cause of the disease through treatment of different deficiencies, Plant growth status, as well as the leaf element content of each treatment. In order to provide the field of nutrition research reference.