Manik S M Nuruzzaman, Pengilley Georgina, Dean Geoffrey, Field Brian, Shabala Sergey, Zhou Meixue
Tasmanian Institute of Agriculture, University of Tasmania, Prospect, TAS, Australia.
Hubei Collaborative Innovation Center for Grain Industry/School of Agriculture, Yangtze University, Jingzhou, China.
Front Plant Sci. 2019 Feb 12;10:140. doi: 10.3389/fpls.2019.00140. eCollection 2019.
Waterlogging remains a significant constraint to cereal production across the globe in areas with high rainfall and/or poor drainage. Improving tolerance of plants to waterlogging is the most economical way of tackling the problem. However, under severe waterlogging combined agronomic, engineering and genetic solutions will be more effective. A wide range of agronomic and engineering solutions are currently being used by grain growers to reduce losses from waterlogging. In this scoping study, we reviewed the effects of waterlogging on plant growth, and advantages and disadvantages of various agronomic and engineering solutions which are used to mitigate waterlogging damage. Further research should be focused on: cost/benefit analyses of different drainage strategies; understanding the mechanisms of nutrient loss during waterlogging and quantifying the benefits of nutrient application; increasing soil profile de-watering through soil improvement and agronomic strategies; revealing specificity of the interaction between different management practices and environment as well as among management practices; and more importantly, combined genetic, agronomic and engineering strategies for varying environments.
在降雨量大和/或排水不良的地区，涝害仍然是全球谷物生产的一个重大制约因素。提高植物的耐涝性是解决这一问题最经济的方法。然而，在严重涝灾情况下，综合农艺、工程和遗传解决方案将更有效。目前，谷物种植者正在采用多种农艺和工程解决方案来减少涝灾造成的损失。在这项范围界定研究中，我们综述了涝害对植物生长的影响，以及用于减轻涝害损害的各种农艺和工程解决方案的优缺点。未来的研究应集中在：不同排水策略的成本效益分析；了解涝灾期间养分流失的机制并量化养分施用的效益；通过土壤改良和农艺策略增加土壤剖面排水；揭示不同管理措施与环境之间以及管理措施之间相互作用的特异性；更重要的是，针对不同环境的综合遗传、农艺和工程策略。
