<?xml version='1.0' encoding='UTF-8'?><codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5" xml:lang="en"><docDscr><citation><titlStmt><titl xml:lang="en">Water Use Efficiency (WUE) in Maize grain yield in Ethiopia (Map) under unfertilized conditions, 90 kg ha-1 Nitrogen and 30 kg ha-1 Phosphorus application rate, 225 kg ha-1 Nitrogen and 75 kg ha-1 Phosphorus application rate, 2004-2010</titl><IDNo agency="DOI">doi:10.60507/FK2/WOIIJG</IDNo></titlStmt><distStmt><distrbtr source="archive">bonndata</distrbtr><distDate>2023-09-18</distDate></distStmt><verStmt source="archive"><version date="2023-09-18" type="RELEASED">1</version></verStmt><biblCit>Amit Kumar Srivastava, 2023, "Water Use Efficiency (WUE) in Maize grain yield in Ethiopia (Map) under unfertilized conditions, 90 kg ha-1 Nitrogen and 30 kg ha-1 Phosphorus application rate, 225 kg ha-1 Nitrogen and 75 kg ha-1 Phosphorus application rate, 2004-2010", https://doi.org/10.60507/FK2/WOIIJG, bonndata, V1</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl xml:lang="en">Water Use Efficiency (WUE) in Maize grain yield in Ethiopia (Map) under unfertilized conditions, 90 kg ha-1 Nitrogen and 30 kg ha-1 Phosphorus application rate, 225 kg ha-1 Nitrogen and 75 kg ha-1 Phosphorus application rate, 2004-2010</titl><IDNo agency="DOI">doi:10.60507/FK2/WOIIJG</IDNo><IDNo agency="ZEF Data Portal">d9271b3a-5890-48f8-9648-9b099aaba5b5</IDNo></titlStmt><rspStmt><AuthEnty affiliation="Institute of Crop Science and Resource Conservation (INRES), University of Bonn">Amit Kumar Srivastava</AuthEnty></rspStmt><prodStmt/><distStmt><distrbtr source="archive">bonndata</distrbtr><contact affiliation="Institute of Crop Science and Resource Conservation (INRES), University of Bonn" email="amit@uni-bonn.de">Amit Kumar Srivastava</contact></distStmt><holdings URI="https://doi.org/10.60507/FK2/WOIIJG"/></citation><stdyInfo><subject><keyword xml:lang="en">Other</keyword><topcClas vocab="Research Project">BiomassWeb</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">phosphatic fertiliser</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">nitrogenous fertiliser</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">fertiliser</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">yield (agricultural)</topcClas></subject><abstract xml:lang="en">Water Use Efficiency (RUE) for maize grain yield across the Ethiopia has been estimated under fertilized conditions using crop model LINTUL5 embedded into the modeling framework SIMPLACE (Scientific Impact Assessment and Modelling Platform for Advanced Crop and Ecosystem Management.

Purpose: To increase food production, identifying the regions with untapped production capacity is of prime importance and can be achieved by quantitative and spatially explicit estimates of Water use efficiency, thus considering the spatial variation in environment and the production system.</abstract><sumDscr><timePrd cycle="P1" event="start" date="2004-01-01">2004-01-01</timePrd><timePrd cycle="P1" event="end" date="2010-12-31">2010-12-31</timePrd><collDate cycle="P1" event="start" date="2010-11-29T11:00:00">2010-11-29T11:00:00</collDate><collDate cycle="P1" event="end" date="2010-11-29T11:00:00">2010-11-29T11:00:00</collDate><nation>Ethiopia</nation><geoBndBox><westBL>32.59522772638616</westBL><eastBL>48.41554022418385</eastBL><southBL>3.0215369954067945</southBL><northBL>14.638381977311354</northBL></geoBndBox></sumDscr><notes>This dataset was first published on the institutional Repository "Zentrum für Entwicklungsforschung: ZEF Data Portal" with ID={d9271b3a-5890-48f8-9648-9b099aaba5b5}.&lt;br/>
The water use efficiency in maize grain yield under fertilized conditions plotted in the map was calculated as the average values of 7 years (the year 2004 -2010). The unit is kilogram per millimeter (kg/mm).

Water Use Efficiency (WUE)= Maize grain yield under fertilized condition (in kg)/ Cumulative precipitation during crop growth period (in millimeter)

The climate data at the national scale was made available from the National Aeronautics and Space Administration (NASA), Goddard Institute of Space Studies(https://data.giss.nasa.gov/impacts/agmipcf/agmerra/), AgMERRA.The dataset is stored at 0.25°×0.25° horizontal resolution (~25km).

Soil parameter values were extracted from the soil property maps of Africa at 1 km x 1 km resolution 
(http://http://www.isric.org/projects/soil-property-maps-africa-1-km-resolution).</notes></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/><notes type="DVN:TOU" level="dv">&lt;a href="http://creativecommons.org/licenses/by-sa/4.0">CC BY-SA 4.0&lt;/a></notes></dataAccs><othrStdyMat/></stdyDscr><otherMat ID="f2674" URI="https://bonndata.uni-bonn.de/catalog/downloads/2674/BIOW_Water-Use-Efficiency-Ethiopia_2004-10_pol.zip" level="datafile"><labl>BIOW_Water-Use-Efficiency-Ethiopia_2004-10_pol.zip</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/zip</notes></otherMat><otherMat ID="f2672" URI="https://bonndata.uni-bonn.de/catalog/downloads/2672/metadata.xml" level="datafile"><labl>metadata.xml</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">text/xml</notes></otherMat><otherMat ID="f2675" URI="https://bonndata.uni-bonn.de/catalog/downloads/2675/proj_BiomassWEB.png" level="datafile"><labl>proj_BiomassWEB.png</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">image/png</notes></otherMat><otherMat ID="f2673" URI="https://bonndata.uni-bonn.de/catalog/downloads/2673/Water%20use%20efficiency%20in%20Maize%20Grain%20yield_landscape_300dpi.png" level="datafile"><labl>Water use efficiency in Maize Grain yield_landscape_300dpi.png</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">image/png</notes></otherMat><otherMat ID="f2676" URI="https://bonndata.uni-bonn.de/catalog/downloads/2676/Water_use_efficiency_in_Maize_Grain_yield_new.png" level="datafile"><labl>Water_use_efficiency_in_Maize_Grain_yield_new.png</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">image/png</notes></otherMat></codeBook>