您好，欢迎访问湖北省农业科学院 机构知识库！
湖北省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

The effect of organic manure or green manure incorporation with reductions in chemical fertilizer on yield-scaled N2O emissions in a citrus orchard

文献类型： 外文期刊

作者： Zhou, Wei 1 ; Ma, Qingxu 4 ; Wu, Lei 5 ; Hu, Ronggui 2 ; Jones, Davey L. 7 ; Chadwick, David R. 6 ; Jiang, Yanbing 2 ; Wu, Yupeng 2 ; Xia, Xiange 1 ; Yang, Li 1 ; Chen, Yunfeng 1 ;

作者机构： 1.Hubei Acad Agr Sci, Inst Plant Protect & Soil Sci, Wuhan 430064, Peoples R China

2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China

3.Minist Agr & Rural Affairs, Key Lab Fertilizat Agr Wastes, Wuhan 430064, Peoples R China

4.Zhejiang Univ, Coll Environm & Resource Sci, Hangzhou 310058, Peoples R China

5.Chinese Acad Agr Sci, Inst Agr Resources & Agr Reg Planning, Beijing 100081, Peoples R China

6.Bangor Univ, Sch Nat Sci, Bangor LL57 2UW, Gwynedd, Wales

7.Murdoch Univ, Ctr Sustainable Farming Syst, Food Futures Inst, SoilsWest, Murdoch, WA 6105, Australia

关键词： Citrus orchard; Yield-scale N2O emissions; Organic source; Green manure; Reduction rate

期刊名称：AGRICULTURE ECOSYSTEMS & ENVIRONMENT （ 影响因子：6.576； 五年影响因子：7.088 ）

ISSN： 0167-8809

年卷期： 2022 年 326 卷

页码：

收录情况： SCI

摘要： Excess chemical fertilizer application results in substantial N2O emission. Manure application into agricultural soil can reduce chemical fertilizer input while maintaining crop yield. However, little is known about the potential effects of reduction in chemical fertilizer with green manure or organic manure on yield-scaled N2O emissions in orchards. A two-year experiment was carried out in a citrus orchard, including (i) chemical fertilizer (urea), 0%, 70%, 85% and 100% of N supplied, respectively (CK, C70, C85, CF), (ii) organic manure (rapeseed cake) incorporation with 0%, 70%, 85% and 100% of N supplied from chemical fertilizer (OM, OMC70, OMC85, OMCF), (iii) green manure (smooth vetch) incorporation with 0%, 70%, 85% and 100% of N supplied from chemical fertilizer (GM, GMC70, GMC85, GMCF) treatments. The soil physical-chemical properties, N2O emissions and yields were measured during 2018-2019. N2O emissions were 1.57 and 1.80 kg N ha- 1 yr- 1 under CF treatment in 2018 and 2019, respectively, and decreased by 25.4%-31.6% under C70, 32.5%-55.4% under OMC70 and OMC85 treatments and by 16.1-32.2% under GMC70 and GMC85 treatments. The 70% N rate of chemical fertilizer was the optimal N rate for maximizing yield in no manure, organic manure and green manure treatments, respectively. The C70, OMC70 and GMC70 treatments both significantly decreased yield-scaled N2O emission with the lowest emission in OMC70 treatment relative to CF treatment. N2O fluxes in OMC70 and OMC85 treatments were mainly controlled by the DOC/NO3- ratio, while soil NH4+ was the dominant factor controlling N2O fluxes in GMC70 and GMC85 treatments, suggesting that more NH4+ provided from green manure than from organic manure contributed to higher N2O emission. We conclude that applying organic manure incorporation with 30% reductions of chemical fertilizer is a fertilizer management strategy worth pursuing for sustainable productivity and environmental protection in citrus orchards.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：湖北省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台