太行山前平原农田高效用水模式研究
Ways for increasing water use efficiency in farmland of Taihang piedmont
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摘要: 实现地下水采补平衡是维持太行山前平原区农业持续发展的重要基础。根据多年的田间试验结果 研究探讨了减少农田非生产性耗水、水肥耦合提高水分利用效率、节水高效灌溉制度、根系调控与提高土壤水利用率实现地下水采补平衡的途径和措施。实施大面积秸秆覆盖可减少农田耗水量约40mm；优化灌溉制度可减少冬小麦生育期1次灌水60mm。Abstract: For sustainable agricultural development in Taihang piedmont,measures must be applied to reduce irrigation water use.Based on field experimental results for many years,ways for increasing farmland water use efficiency are discussed and the measures include reducing soil evaporation,coupling water and fertilizer,fully utilization of soil water,high efficient irrigation schedule and managing root system for efficient water use.Straw mulching can reduce farmland evaporation about 40mm annually,and one or two irrigations can be omitted by optimal irrigation schedule to winter wheat.
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Key words:
- Taihang piedmont /
- Farmland /
- Efficient water use
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