水氮互作效应及苎麻相关研究建议

Water and Nitrogen Interaction Effects and Suggestion of Ramie Studies

水和氮是限制苎麻生产潜力的关键因子,两者之间存在多层次的互作关系。鉴于近年来苎麻向丘陵山地等生态脆弱区转移,水氮资源限制加剧,资源投入型的生产方式无法适应产业发展需求,深入理解水和氮之间复杂的互作机制是提升其利用效率的重要基础。文章在探讨水氮复合胁迫及复水复氮生长补偿机制的基础上,分析了农业生产中水氮耦合的主要策略,并结合苎麻相关研究进展,提出了下一步研究建议,以期为建立资源节约型苎麻农作制度提供依据。

Water and nitrogen are key limiting factors of ramie production and multi-level interactions exist between the two factors. According to the status that ramie production shifts to hilly regions and other ecologically vulnerable areas, it is increasingly impacted by water and nitrogen resources. The extensive growth mode with heavy resource consumption has to be changed, and a thorough understanding of the complex interaction mechanism between water and nitrogen is an important basis for the new mode with higher resource utilization efficiency. This article discusses the effects and the mechanism of water and nitrogen co-limitation and compensatory growth effects after rewatering and re-fertilizing. Integrating the research progresses in ramie, it proposes suggestions for establishing a resource saving farming system of the crop.