Replication Data for: Effect of legume intercropping on N2O emissions and CH4 uptake during maize production in the Great Rift Valley, Ethiopia

The data report weekly measurements of soil nitrous oxide (N2O) emission and methane (CH4) uptake in the growing seasons 2015 and 2016 in a maize field experiment performed on the Hawassa University campus, Central Rift Valley, Ethiopia. The experiment was designed to test the effect of intercropping the forage legumes lablab (L. purpureus) and Crotalaria (C. juncea) into nitrogen (N) and phosphorous (P) fertilized maize 3 and 6 weeks after sowing of maize. The forage legumes were harvested at flowering and half of the biomass was returned to the same plots as mulch in the first season. In the second season, N fertilization was halved in mulched plots. Intercropping effects are evaluated against fully and non-fertilized maize treatments. The results are published in Raji SG and Dörsch P, Biogesciences, https://doi.org/10.5194/bg-2019-303

本数据报告了对埃塞俄比亚中裂谷地区豪萨大学校园内玉米田实验中，2015年和2016年生长季节每周土壤一氧化二氮（N2O）排放和甲烷（CH4）吸收量的测量结果。该实验旨在检验在播种后3周和6周将豆科牧草（Lablab purpureus）和Crotalaria juncea与施用氮（N）和磷（P）肥的玉米进行间作对氮磷肥效的影响。豆科牧草在开花期收获，并将一半的生物量作为覆盖物返回到同一地块。在第二个生长季节，覆盖物地块的氮肥施用量减半。间作效果与全施肥和非施肥的玉米处理进行对比评估。相关研究成果已发表在Raji SG和Dörsch P的《生物科学》期刊上，https://doi.org/10.5194/bg-2019-303。