Crop response dataset collated from peer reviewed articles.

Although soil and agronomy data collection in Ethiopia has begun over 60 years ago, the data are hardly accessible as they are scattered across different organizations, mostly held in the hands of individuals (Ashenafi et al.,2020; Tamene et al.,2022), which makes them vulnerable to permanent loss. Cognizant of the problem, the Coalition of the Willing (CoW) for data sharing and access was created in 2018 with joint support and coordination of the Alliance Bioversity-CIAT and GIZ (https://www.ethioagridata.com/index.html). Mobilizing its members, the CoW has embarked on data rescue operations including data ecosystem mapping, collation, and curation of the legacy data, which was put into the central data repository for its members and the wider data user’s community according to the guideline developed based on the FAIR data principles and approved by the CoW. So far, CoW managed to collate and rescue about 20,000 legacy soil profile data and over 38,000 crop responses to fertilizer data (Tamene et al.,2022). The crop response dataset (N=946 observations) is extracted, transformed, and uploaded into a harmonized template, consisting of 76 variables. "A comprehensive dataset specifically on crop response to fertilizers and is obtained from published journal articles, thesis and proceedings spanning at least 5 decades. It represents all the agriculturally productive regions of Ethiopia. The data contains information on region, crop type and soil type under which experiments were conducted, as well as application rates of nutrients (N, P, K, and other nutrients) as well as yields of the control and fertilized treatment on which crop response ratios are derived." Reference: Ashenafi, A., Tamene, L., and Erkossa, T. 2020. Identifying, Cataloguing, and Mapping Soil and Agronomic Data in Ethiopia. CIAT Publication No. 506. International Center for Tropical Agriculture (CIAT). Addis Ababa, Ethiopia. 42 p. 10.13140/RG.2.2.31759.41123. Tamene L; Erkossa T; Tafesse T; Abera W; Schultz S. 2021. A coalition of the Willing - Powering data-driven solutions for Ethiopian Agriculture. CIAT Publication No. 518. International Center for Tropical Agriculture (CIAT). Addis Ababa, Ethiopia. 34 p. https://www.ethioagridata.com/Resources/Powering%20Data-Driven%20Solutions%20for%20Ethiopian%20Agriculture.pdf. The Coalition of the Willing (CoW) website: https://www.ethioagridata.com/index.html. TERMS: Access to the data is limited to the CoW members until the national soil and agronomy data-sharing directive of MoA is registered by the Ministry of Justice and released for implementation. DISCLAIMER: The dataset populated in the harmonized template consisting of 76 variables is extracted, transformed, and uploaded from the source document by the CoW. Hence, if any irregularities are observed, the data users have referred to the source document uploaded along with the dataset. Use of the dataset and any consequences arising from using it is the user’s sole responsibility.

埃塞俄比亚的土壤与农艺数据收集工作虽已开展逾60年，但由于数据分散于各类机构且大多由个人持有（Ashenafi等，2020；Tamene等，2022），因此难以获取，甚至面临永久丢失的风险。
针对这一问题，2018年在生物多样性国际联盟（Alliance Bioversity-CIAT）与德国国际合作机构（GIZ）的联合支持与协调下，自愿数据共享与获取联盟（Coalition of the Willing, CoW）正式成立，其官网为https://www.ethioagridata.com/index.html。
该联盟动员成员开展数据救援工作，涵盖数据生态系统测绘、遗留数据的整理与编目，并依据基于FAIR数据原则（FAIR Data Principles）制定且经CoW批准的指南，将上述数据存入中央数据仓库，供联盟成员及更广泛的数据用户社区使用。
截至目前，CoW已成功整理并救援约20000份土壤剖面数据与超过38000份作物肥料响应数据（Tamene等，2022）。其中的作物响应数据集（样本量N=946）经提取、转换后上传至统一模板，该模板共包含76个变量。
"本数据集专门针对作物肥料响应，其来源涵盖近50年发表的期刊论文、学位论文及会议论文集，覆盖埃塞俄比亚全部农业生产区域。数据包含实验开展的区域、作物类型、土壤类型，氮（N）、磷（P）、钾（K）及其他养分的施用量，以及对照组与施肥组的产量，据此可推导作物响应比。"
参考文献：Ashenafi, A., Tamene, L. 及 Erkossa, T. 2020. 《埃塞俄比亚土壤与农艺数据的识别、编目与测绘》. 国际热带农业中心（International Center for Tropical Agriculture, CIAT）第506号出版物，埃塞俄比亚亚的斯亚贝巴，共42页. DOI: 10.13140/RG.2.2.31759.41123.
Tamene L, Erkossa T, Tafesse T, Abera W, Schultz S. 2021. 《自愿联盟：为埃塞俄比亚农业赋能数据驱动解决方案》. 国际热带农业中心（International Center for Tropical Agriculture, CIAT）第518号出版物，埃塞俄比亚亚的斯亚贝巴，共34页. 访问链接：https://www.ethioagridata.com/Resources/Powering%20Data-Driven%20Solutions%20for%20Ethiopian%20Agriculture.pdf.
自愿数据共享与获取联盟（CoW）官方网站：https://www.ethioagridata.com/index.html.
使用条款：在埃塞俄比亚农业部（Ministry of Agriculture, MoA）制定的国家土壤与农艺数据共享指令经司法部（Ministry of Justice）注册并发布实施前，本数据集仅对CoW成员开放。
免责声明：本数据集包含76个变量，由CoW从源文档中提取、转换并上传至统一模板。若发现任何数据异常，请数据使用者参考随数据集一同上传的源文档。本数据集的使用及由此产生的一切后果均由使用者自行承担。