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首页> 外文会议>International Symposium on Managing Soils for Food Security and Climate Change Adaptation and Mitigation >Environmental Sustainability of Vegetable Production above a Shallow Aquifer
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Environmental Sustainability of Vegetable Production above a Shallow Aquifer

机译：浅层含水层上方的蔬菜产量的环境可持续性

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Irrigation and fertilization techniques were evaluated over a two-year study period in terms of yield and environmental sustainability at a benchmark site near water protection zones above a shallow aquifer. For vegetables with a short growing period, three irrigation and fertilization treatments were applied in 2006 and 2007: (i) fertilization and 100 percent drip irrigation (fertigation), (ii) the farmer's practice (sprinkler irrigation) and fertilization, and (iii) control (the farmer's practice of irrigation, no fertilization). Equivalents of 80 and 200 kg/ha of nitrogen (N), 50 and 80 kg/ha of phosphorus (P), and 120 and 300 kg/ha of potassium (K) were added for endive and cabbage, respectively. Nitrogen-15 labelled fertilizer was used as a tracer. Results showed that environmentally sustainable practices (split application of nutrients compared with broadcast incorporating fertilization) in a humid climate can and should be a practice of choice on soils in water protection zones. The findings showed that fertigation is an effective way of minimizing nitrate leaching, and should be considered for vegetable production in or close to groundwater protection zones.
机译：在浅含水层之外的水保护区附近的基准现场，在一个两年的研究期间评估了灌溉和施肥技术。对于患有较短期间的蔬菜，2006年和2007年的三种灌溉和施肥治疗方法：（i）施肥和100％滴灌（培育），（ii）农民的实践（喷水灭火）和施肥，和（iii）控制（农民的灌溉实践，无施肥）。为莴苣和白菜分别加入80和200kg / ha的氮（n），50和80kg / ha的磷（n），50kg / ha的磷（p）和120kg / ha的钾（300kg / ha的钾（k）。氮-15标记的肥料用作示踪剂。结果表明，在潮湿的气候中，环境可持续实践（与广播施肥相比，营养素的分裂施用）可以是水保护区土壤中选择的实践。结果表明，灌溉是最小化硝酸盐浸出的有效方法，并且应考虑用于地下水保护区的蔬菜生产。

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