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应用生态学报 ›› 2023, Vol. 34 ›› Issue (12): 3322-3332.doi: 10.13287/j.1001-9332.202312.012

• 研究论文 • 上一篇    下一篇

基施控释掺混肥对夏玉米生长期活性氮损失和碳氮足迹的影响

高玮1,2,3, 李子双4, 谢建治2, 周晓琳4, 杜梦扬4, 王学霞1,3, 陈延华1,3, 曹兵1,3*   

  1. 1北京市农林科学院植物营养与资源环境研究所, 北京 100097;
    2河北农业大学资源与环境科学学院, 河北保定 071000;
    3北京市缓控释肥料工程技术研究中心, 北京 100097;
    4德州市农业科学研究院, 山东德州 253015
  • 收稿日期:2023-08-23 修回日期:2023-10-20 出版日期:2023-12-15 发布日期:2024-06-15
  • 通讯作者: *E-mail: 609284507@qq.com
  • 作者简介:高 玮, 男, 1999年生, 硕士研究生。主要从事农田氮素损失研究。E-mail: 1933747813@qq.com
  • 基金资助:
    国家重点研发计划项目(2022YFD170060504)、北京市农林科学院创新能力建设专项(KJCX20230304)、北京市农林科学院创新平台建设项目(PT2023-47)和新型肥料研发与评价科技能力提升项目(ZHS202301)

Effect of single basal application of controlled-release blended fertilizer on reactive nitrogen loss, carbon and nitrogen footprint during summer maize growth period

GAO Wei1,2,3, LI Zishuang4, XIE Jianzhi2, ZHOU Xiaolin4, DU Mengyang4, WANG Xuexia1,3, CHEN Yanhua1,3, CAO Bing1,3*   

  1. 1Institute of Plant Nutrition, Resource and Environment, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100097, China;
    2College of Resources & Environmental Sciences, Hebei Agricultural University, Baoding 071000, Hebei, China;
    3Beijing Engineering Technology Research Center for Slow/Controlled-Release Fertilizer, Beijing 100097, China;
    4Dezhou Academy of Agricultural Sciences, Dezhou 253015, Shandong, China
  • Received:2023-08-23 Revised:2023-10-20 Online:2023-12-15 Published:2024-06-15

摘要: 为探究控释掺混肥减量一次性基施在夏玉米上的农学和环境效应,优化我国华北地区粮食生产的氮肥管理措施,在山东省德州市现代农业科技园区开展田间试验,设不施氮对照(CK)、常规施氮(施氮量240 kg·hm-2,FFP)、优化施氮(施氮量210 kg·hm-2,OPT)和控释掺混肥一次性基施(施氮量210 kg·hm-2,CRBF)4个处理,对比分析了不同处理的夏玉米产量和活性氮损失(氨挥发、N2O排放、硝酸盐淋溶)差异,并采用生命周期评价法,定量评估了不同处理的碳、氮足迹。结果表明: 与CK相比,施氮显著增加了夏玉米产量;与FFP相比,OPT和CRBF处理的夏玉米产量分别提高0.7%和2.9%,氨挥发、N2O排放、硝酸盐淋溶总量分别显著降低13.0%和72.7%、13.3%和37.5%、20.5%和23.5%。与CK相比,施氮显著增加了夏玉米生产的全球增温潜势(GWP);与FFP相比,OPT处理的GWP和温室气体排放强度分别降低3.8%和4.2%,CRBF处理分别显著降低8.7%和12.0%。施氮较CK显著增加了夏玉米生产的碳、氮足迹,氮肥的生产运输和土壤温室气体排放是碳足迹的主要贡献因子,贡献率分别为54%~60%和24%~31%;硝酸盐淋溶是氮足迹的主要贡献因子,贡献率高达57%~94%;与FFP相比,OPT和CRBF处理的碳、氮足迹分别显著降低11.0%和16.5%、19.6%和28.4%。综合考虑作物产量、活性氮损失和碳氮足迹,一次性减量基施控释掺混肥能够发挥更大的环境效益,可推荐为促进华北平原粮食清洁生产的有效氮肥管理措施。

关键词: 控释掺混肥, 氨挥发, 硝酸盐淋溶, 温室气体排放, 生命周期评价, 碳氮足迹

Abstract: To elucidate the agronomic and environmental effects of single basal application of controlled-release blended fertilizer in summer maize, and optimize management measures of nitrogen fertilizer for grain production in North China Plain, we conducted a field experiment in Dezhou Modern Agricultural Science and Technology Park in Shandong Province. There were four treatments: CK (no N fertilizer), FFP (farmer’s fertilizing practice, 240 kg N·hm-2), OPT (optimized nitrogen application, 210 kg N·hm-2), and CRBF (controlled-release blended fertilizer with single basal application, 210 kg N·hm-2). We compared maize yield and reactive nitrogen loss, and quantitatively evaluated the carbon and nitrogen footprints by using life cycle assessment method. The results showed that nitrogen application significantly increased summer maize yield. Compared with FFP, OPT and CRBF increased summer corn yield by 0.7% and 2.9%, respectively, decreased the total amount of ammonia volatilization, N2O emission, and nitrate leaching by 13.0% and 72.7%, 13.3% and 37.5%, 20.5% and 23.5% respectively. Compared with CK, nitrogen application significantly increased the global warming potential (GWP) of summer maize production. Compared with FFP, GWP and greenhouse gas emission intensity of OPT decreased by 3.8% and 4.2%, while the reduction of CRBF were 8.7% and 12.0%, respectively. Compared with CK, nitrogen application significantly increased the carbon and nitrogen footprint of summer maize production. The production and transportation of nitrogen fertilizer and soil greenhouse gas emission were the main contributing factors of the carbon footprint, with contribution rates of 54%-60% and 24%-31%, respectively. Nitrate leaching was the main contributing factor of nitrogen footprint, with contribution rate of 57%-94%. Compared with FFP, the carbon and nitrogen footprints of OPT and CRBF were reduced by 11.0% and 16.5%, 19.6% and 28.4%, respectively. Considering the yield, reactive nitrogen loss and carbon and nitrogen footprint, we recommended the single basal application of controlled-release blended fertilizer as an effective nitrogen fertilizer management measure to promote grain clean production in the North China Plain.

Key words: controlled-release blended fertilizer, ammonia volatilization, nitrate leaching, greenhouse gas emissions, life cycle assessment, carbon and nitrogen footprint