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Measures for reducing nitrate leaching in orchards:A review.

Meng Cui1, Lihua Zeng2, Wei Qin3

  • 1College of Information Science and Technology, Hebei Agricultural University, No. 289 Lingyusi Street, Baoding, Hebei, 071001, China.

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|April 21, 2020
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Reducing nitrate leaching in orchards is crucial for environmental protection. This study reviews methods like grass cover and controlled-release fertilizers to minimize nitrogen runoff and protect water quality.

Keywords:
Drinking water pollutionFertilization strategyModel evaluationNitrate leachingOrchard

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Area of Science:

  • Agricultural Science
  • Environmental Science
  • Soil Science

Background:

  • Nitrogen (N) is essential for plant growth, but its mismanagement in agriculture causes significant nitrate leaching.
  • Leached nitrate contaminates drinking water, posing human health risks, and pollutes rivers, leading to eutrophication and ecological damage.
  • Fruit production systems are particularly susceptible to high rates of nitrate leaching.

Purpose of the Study:

  • To review and evaluate methods for reducing nitrate leaching in orchard ecosystems.
  • To assess the effectiveness of various approaches in mitigating nitrogen runoff from agricultural lands.
  • To provide insights for achieving agricultural sustainability and environmental protection goals.

Main Methods:

  • Literature review of scientific studies on nitrate leaching in orchards.
  • Evaluation of management practices including grass cover, controlled-release nitrogen fertilizers, and nitrification inhibitors.
  • Analysis of integrated approaches for sustainable orchard management.

Main Results:

  • Grass cover can help reduce soil erosion and nitrate movement.
  • Controlled-release nitrogen fertilizers improve nutrient use efficiency and minimize leaching.
  • Nitrification inhibitors slow down the conversion of ammonium to nitrate, reducing its mobility.
  • Integrated strategies combining multiple methods offer the most effective solution for reducing nitrate leaching.

Conclusions:

  • Various methods effectively reduce nitrate leaching in orchards, contributing to improved water quality.
  • Integrated management practices are essential for achieving long-term agricultural sustainability and environmental protection.
  • Further research and implementation of these strategies are vital for mitigating the negative impacts of nitrogen fertilization.