Abstract Few studies have quantified soil greenhouse gas (GHG) −CH4, CO2 N2O – annual fluxes directly from smallholder maize cropping systems under different soil fertility management technologies in Sub Saharan Africa. We quantified soil GHG annual fluxes from smallholder maize cropping systems under four different soil fertility management technologies in the Central Highlands of Kenya. We regularly sampled GHG from 2nd March 2018 to 1st March 2019 (1 year) in three maize farms using a static chamber technique. The fertility management technologies were: inorganic fertilizer, animal manure, animal manure combined with inorganic fertilizer, and a Control (No external input). The experimental design was a randomized complete block design replicated thrice. Cumulative annual soil fluxes ranged from -2.40 kg CH4-C ha−1 yr−1 from the control treatment to −1.62 kg CH4-C ha−1 yr−1 from the manure combined with inorganic fertilizer treatment, 4810 kg CO2-C ha−1 yr−1 from the control treatment to 6576 kg CO2-C ha−1 yr−1 from the inorganic fertilizer treatment, and 0.21 kg N2O-N ha−1 yr−1 from the control treatment to 0.38 kg N2O-N ha−1 yr−1 from the inorganic fertilizer treatment for CH4, CO2, and N2O fluxes, respectively. Fertilizer treatment produced the highest CO2 emissions (p

中文翻译：

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肯尼亚不同土壤肥力管理技术下玉米种植系统土壤温室气体通量

摘要 很少有研究量化了撒哈拉以南非洲不同土壤肥力管理技术下直接来自小农玉米种植系统的土壤温室气体 (GHG) -CH4、CO2 N2O - 年通量。我们量化了肯尼亚中部高地在四种不同土壤肥力管理技术下小农玉米种植系统的土壤温室气体年通量。我们在 2018 年 3 月 2 日至 2019 年 3 月 1 日（1 年）期间使用静态室技术定期对三个玉米农场的温室气体进行采样。肥力管理技术为：无机肥、畜禽粪便、畜禽粪肥配无机肥、对照（无外部投入）。实验设计是重复三次的随机完整区组设计。累积年土壤通量范围为 -2。40 kg CH4-C ha-1 yr-1 从对照处理到-1.62 kg CH4-C ha-1 yr-1 从粪肥结合无机肥料处理，4810 kg CO2-C ha-1 yr-1 从控制处理从无机肥料处理到 6576 kg CO2-C ha-1 yr-1，从控制处理到 0.21 kg N2O-N ha-1 yr-1 到 0.38 kg N2O-N ha-1 yr-1 从无机肥处理分别用于 CH4、CO2 和 N2O 通量。肥料处理产生的二氧化碳排放量最高（p