<?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 (map) in Maize biomass in Ashanti region and Brong-Ahafo region in Ghana under three fertilizer application rates i.e., 4 kg/ha Nitrogen (current application rates); 45 kg/ha Nitrogen and 15 kg/ha Phosphorous; 135 kg/ha Nitrogen and 45 kg/ha Phosphorous, 1992-2010</titl><IDNo agency="DOI">doi:10.60507/FK2/XB0TRR</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 (map) in Maize biomass in Ashanti region and Brong-Ahafo region in Ghana under three fertilizer application rates i.e., 4 kg/ha Nitrogen (current application rates); 45 kg/ha Nitrogen and 15 kg/ha Phosphorous; 135 kg/ha Nitrogen and 45 kg/ha Phosphorous, 1992-2010", https://doi.org/10.60507/FK2/XB0TRR, bonndata, V1</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl xml:lang="en">Water Use Efficiency (map) in Maize biomass in Ashanti region and Brong-Ahafo region in Ghana under three fertilizer application rates i.e., 4 kg/ha Nitrogen (current application rates); 45 kg/ha Nitrogen and 15 kg/ha Phosphorous; 135 kg/ha Nitrogen and 45 kg/ha Phosphorous, 1992-2010</titl><IDNo agency="DOI">doi:10.60507/FK2/XB0TRR</IDNo><IDNo agency="ZEF Data Portal">7ee5cca4-574c-4945-a220-00b1b02573f8</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/XB0TRR"/></citation><stdyInfo><subject><keyword xml:lang="en">Other</keyword><topcClas vocab="Research Project">BiomassWeb</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">biomass</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">fertiliser</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">phosphatic fertiliser</topcClas><topcClas vocab="GEMET - Concepts, version 2.4">nitrogenous fertiliser</topcClas></subject><abstract xml:lang="en">Water Use Efficiency (WUE) for maize biomass in Ashanti region and Brong-Ahafo region in Ghana has been estimated under three different fertilizer application rates 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="1992-01-01">1992-01-01</timePrd><timePrd cycle="P1" event="end" date="2010-12-31">2010-12-31</timePrd><collDate cycle="P1" event="start" date="2010-11-16T13:45:00">2010-11-16T13:45:00</collDate><collDate cycle="P1" event="end" date="2010-11-16T13:45:00">2010-11-16T13:45:00</collDate><nation>Ghana</nation><geoBndBox><westBL>-3.2358825597569654</westBL><eastBL>0.5434143147169717</eastBL><southBL>5.0448055527222975</southBL><northBL>11.305379402024625</northBL></geoBndBox></sumDscr><notes>This dataset was first published on the institutional Repository "Zentrum für Entwicklungsforschung: ZEF Data Portal" with ID={7ee5cca4-574c-4945-a220-00b1b02573f8}.&lt;br/>
The water use efficiency in maize biomass under three different fertilizer application rates, plotted in the map was calculated as the average values of 19 years (the year 1992 -2010). The unit is kilogram per millimeter (kg/mm).

Water Use Efficiency (WUE)= Maize biomass (in kg)/ Cumulative precipitation during crop growth period (in millimeter)

The climate data at the national scale was made available from the Terrestrial Hydrology Research Group, Princeton University (http://hydrology.princeton.edu/data.php) at a resolution of 10 km x 10 km. The dataset was constructed by combining a suite of global observation-based datasets with the NCEP/NCAR reanalysis.

Soil parameter values were extracted from the soil property maps of Africa at 1 km x 1 km resolution 
(http://www.isric.org/data/soil-property-maps-africa-1-km).</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="f2793" URI="https://bonndata.uni-bonn.de/catalog/downloads/2793/Ghana_Maize_Resource_U_Eff.zip" level="datafile"><labl>Ghana_Maize_Resource_U_Eff.zip</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">application/zipped-shapefile</notes></otherMat><otherMat ID="f2791" URI="https://bonndata.uni-bonn.de/catalog/downloads/2791/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="f2794" URI="https://bonndata.uni-bonn.de/catalog/downloads/2794/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="f2795" URI="https://bonndata.uni-bonn.de/catalog/downloads/2795/WUE_Maize_Aboveground_Biomass_sel_districts_Ashanti_Brong_Ahafo.png" level="datafile"><labl>WUE_Maize_Aboveground_Biomass_sel_districts_Ashanti_Brong_Ahafo.png</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">image/png</notes></otherMat><otherMat ID="f2792" URI="https://bonndata.uni-bonn.de/catalog/downloads/2792/WUE_Maize_Aboveground_Biomass_sel_districts_Ashanti_Brong_Ahafo_Ghana_300dpi.png" level="datafile"><labl>WUE_Maize_Aboveground_Biomass_sel_districts_Ashanti_Brong_Ahafo_Ghana_300dpi.png</labl><txt></txt><notes level="file" type="DATAVERSE:CONTENTTYPE" subject="Content/MIME Type">image/png</notes></otherMat></codeBook>