Messenger Supported Wiring The Crop Production Percentile and Crop Production Regression models estimate crop yield and nutrient value for a fixed set of crops, derived from user-supplied landcover information. Crop yield is primarily driven by climate and fertilizer rates.
Heat Pump Wiring Diagram “Farming the planet: 2. Geographic distribution of crop areas, yields, physiological types, and net primary production in the year 2000." Global Biogeochemical Cycles, Vol.22, GB1022, doi:10.1029/2007GB002947. 2008
House Wiring Ontario “Closing yield gaps through nutrient and water management” N Mueller, J. Gerber, M. Johnston, D. Ray, N. Ramankutty, J. Foley. Nature. 2012 Oct 11;490(7419):254-7. doi: 10.1038/nature11420. Epub 2012 Aug 29.