【摘要】 氮素是烟草生长和发育所必需的营养元素,在烟草生育期对烟株的化学物质合成、能量转换、信号传递等生理过程都有一定的影响。铵态氮和硝态氮是烟草吸收的主要氮素形态,对烟草不同时期、不同部位会产生不同的影响,合理的氮素比例有利于氮素的吸收以及烟叶品质的提高。笔者从烟草对不同形态氮素的吸收利用的方式,不同氮素形态对烟草生长发育、品质形成、元素吸收、光合特性及碳氮代谢等方面的影响进行综述,以期为氮素形态对烟草生长影响的相关研究提供依据。更多还原

【Abstract】 Nitrogen is a necessary nutrient for tobacco growth and development, and has a certain influence onthe physiological process of tobacco, such as chemical synthesis, energy conversion and signal transmission.Ammonium nitrogen and nitrate nitrogen are the main nitrogen forms of tobacco absorption, which havedifferent effects on different parts of tobacco in different periods. Reasonable ratio of nitrogen is beneficial tothe uptake of nitrogen and the improvement of tobacco quality. In this paper, the authors summarized theabsorption and utilization of different forms of nitrogen in tobacco, as well as the effects of different forms ofnitrogen on growth, quality formation, element absorption, photosynthetic characteristics and carbon andnitrogen metabolism of tobacco. The results could provide references about the effects of nitrogen forms ontobacco growth.更多还原