N application rates from mineral fertiliser and manure

<p>Historical N application rates from mineral fertiliser and manure. Prepared for Gridded Global Crop Model Intercomparison (GGCMI) project phase 3.&nbsp;</p> <p>Gridded time series of fertiliser application rates are based on&nbsp;national and sub-national estimates for 141 individual crops for the year 2000 from&nbsp;Mueller et al. (2012) and national time series for five different crop groups from LUH2v2 (Hurtt et al., 2020). Gridded time series of manure application&nbsp;rates on cropland are based on total applied manure per grid cell from Zhang et al. (2017) and cropland extent from&nbsp;LUH2v2 (Hurtt et al., 2020).</p> <p>This update (v.1.1) corrects an error in the manure application rates, which was caused by a misalignment of manure data and cropland extent. Files for fertiser application rates are identical to the&nbsp;previous version.</p> <p>&nbsp;</p> <p><strong>Reference</strong></p> <p>Hurtt, G. C., Chini, L., Sahajpal, R., Frolking, S., Bodirsky, B. L., Calvin, K., Doelman, J. C., Fisk, J., Fujimori, S., Klein Goldewijk, K., Hasegawa, T., Havlik, P., Heinimann, A., Humpen&ouml;der, F., Jungclaus, J., Kaplan, J. O., Kennedy, J., Krisztin, T., Lawrence, D., &hellip; Zhang, X. (2020). Harmonization of global land use change and management for the period 850&ndash;2100 (LUH2) for CMIP6.&nbsp;<em>Geoscientific Model Development</em>,&nbsp;<em>13</em>(11), 5425&ndash;5464. https://doi.org/10.5194/gmd-13-5425-2020</p> <p>Mueller, N. D., Gerber, J. S., Johnston, M., Ray, D. K., Ramankutty, N., &amp; Foley, J. a. (2012). Closing yield gaps through nutrient and water management.&nbsp;<em>Nature</em>,&nbsp;<em>490</em>(7419), 254&ndash;257. https://doi.org/10.1038/nature11420</p> <p>Zhang, B., Tian, H., Lu, C., Dangal, S. R. S., Yang, J., &amp; Pan, S. (2017). Global manure nitrogen production and application in cropland during 1860&ndash;2014: a 5 arcmin gridded global dataset for Earth system modeling.&nbsp;<em>Earth System Science Data</em>,&nbsp;<em>9</em>(2), 667&ndash;678. https://doi.org/10.5194/essd-9-667-2017</p>