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Nitrogen management of vegetable crops
Agricultural Water Management ( IF 6.7 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.agwat.2020.106316
Francesco Tei , Stefaan De Neve , Janjo de Haan , Hanne Lakkenborg Kristensen

N fertilization is often viewed as a cheap insurance against yield loss in vegetable production because of the generally large added value, resulting in application of fertilizer N often in excess of actual crop demand. In combination with the low fertilizer N recovery by many vegetable crops and the often excessive irrigation, this may lead to both health and environmental risks related to high nitrate concentrations in water leaving the root zone. In this review, we discuss the decisive factors in the overall N balance of field vegetable production systems and the different tools at hand to increase fertilizer use efficiency and consequently reduce N losses to the environment. Based on this, we identify areas of research and technology transfer where further work is required. Only an integration of the different methods and strategies for N management may really mitigate the risk of nitrate leaching and maintain crop yields while enhancing the environmental sustainability of vegetable production systems.

中文翻译:

蔬菜作物的氮肥管理

施氮通常被视为蔬菜生产中减少产量损失的廉价保险,因为其附加值通常很大,导致施氮通常超过作物的实际需求。与许多蔬菜作物的氮肥回收率低以及经常过度灌溉相结合,这可能会导致与离开根区的水中硝酸盐浓度高有关的健康和环境风险。在这篇综述中,我们讨论了大田蔬菜生产系统整体氮平衡的决定性因素,以及提高肥料利用效率并因此减少对环境的氮损失的不同工具。在此基础上,我们确定需要进一步工作的研究和技术转让领域。
更新日期:2020-10-01
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