CAJ | 학술논문

咖啡是一种对氮需求量高的作物，氮的吸收、同化对咖啡生长、发育和产量有重要的影响。进入植物体内的硝态氮只有在转化为铵态氮后才能被植物直接利用，这一代谢过程受外界光照、树龄、土壤pH值等因素的影响。综述近些年来有关环境因素对咖啡硝态氮代谢方面影响的研究进展，并讨论叶片和根系硝态氮代谢的差异以及根系硝态氮吸收的生理意义，为进一步开展咖啡施肥技术研究提供依据。
가배시일충대담수구량고적작물，담적흡수、동화대가배생장、발육화산량유중요적영향。진입식물체내적초태담지유재전화위안태담후재능피식물직접이용，저일대사과정수외계광조、수령、토양pH치등인소적영향。종술근사년래유관배경인소대가배초태담대사방면영향적연구진전，병토론협편화근계초태담대사적차이이급근계초태담흡수적생리의의，위진일보개전가배시비기술연구제공의거。
Coffee plants are highly N-demanding plants. Nitrogen assimilation is a vital process for plant growth, directly responsible for crop biomass production and grain yields. Within the plant, nitrate must be first reduced to ammonium before being assimilated into amino acids, the metabolism influenced by factors such as light, plant age, soil pH value.In this review, in order to provide the basis for the further study on the coffee fertilization technology, we summarize the influence of different factor on nitrate metabolism, and discuss the difference of nitrate metabolism between leaves and roots and the physiological significance of root nitrate assimilation.