Abstract

Water table management is a recommended practice to maintain crop production in Eastern Canada. Grain corn is highly susceptible under climate change and adoption of better management practices is almost a necessity. Use of controlled drainage with sub-irrigation is one of the practices recommended. A major question is whether farmers would adopt this practice. Since adoption of new practices often depend on their impact on farm net returns, an economic analysis of controlled drainage with sub-irrigation was undertaken. Results suggest that on grain producing farms, this technology is only slightly superior to the baseline technology of conventional drainage system.

摘要

地下水位管理是在加拿大东部维持作物生产的推荐做法。谷物玉米在气候变化下非常容易受到影响，采用更好的管理方法几乎是必要的。使用辅助灌溉控制排水是推荐的做法之一。一个主要问题是农民是否会采用这种做法。由于采用新做法通常取决于它们对农场净收益的影响，因此对分灌控制排水进行了经济分析。结果表明，在粮食生产农场，该技术仅略优于常规排水系统的基线技术。