Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (23): 82-87.doi: 10.11924/j.issn.1000-6850.casb2022-0331

Special Issue: 生物技术 农业工程

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Characteristics of Soil Nitrogen Leaching in Facility Vegetable Fields and the Control Measures: A Review

XIE Hongbao1(), GUAN Shiyang1, CHEN Yimin2, SUI Yueyu2, PENG Bo1, TANG Boyu1, JIAO Xiaoguang1()   

  1. 1College of Modern Agriculture and Eco-Environment, Heilongjiang University, Harbin 150080
    2Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Harbin 150081
  • Received:2022-04-20 Revised:2022-06-08 Online:2022-08-15 Published:2022-08-08
  • Contact: JIAO Xiaoguang E-mail:2018026@hlju.edu.cn;2004086@hlju.edu.cn

Abstract:

Facility vegetable fields occupy an important proportion in the production of vegetable crops. As the nutrient element with the highest demand in the production of facility vegetables, soil nitrogen plays an irreplaceable role in ensuring the quality and yield of facility vegetables. However, due to the facts that the soil in the facility vegetable fields has always been in a state of being highly intensive and highly fertilized, and has high land utilization rate, the soil nitrogen utilization rate is low and the leaching loss is serious. Based on the research results of soil nitrogen leaching characteristics in facility vegetable fields from 2001 to 2021 at home and abroad, this paper started with an overview of soil nitrogen loss pathways and leaching characteristics in facility vegetable fields, and analyzed the impact mechanism of soil nitrogen leaching in facility vegetable fields. It is concluded that nitrogen leaching loss in facility vegetable fields is mainly affected by fertilization, irrigation, soil texture and planting years. Measures such as reducing nitrogen and controlling water, adjusting soil carbon and nitrogen ratio, applying soil inhibitors, and using idle crops could ensure crop quality in the facility vegetable fields and reduce the loss of soil nitrogen leaching. This paper discusses the future research direction of nitrogen leaching loss in facility vegetable fields, aiming to provide a theoretical basis for the rational management and ecological recycling of facility vegetable fields.

Key words: soil nitrogen, facility vegetable field, nitrogen loss, influence mechanism, control measures

CLC Number: