This function determines the suitability classes for Cation Exchange Capacity (CEC) requirements of selected agricultural crops
Input cation Exchange Capacity (Cmol(+)/kg).
The crop of interest for which CEC suitability class is sought
The input value can be a map or just a numerical entry of CEC (cmol(+)/kg)
The output is CEC suitability class for the crop. The output is an integer value for suitability class: 1- highly suitable; 2 - moderately suitable; 3 - marginally suitable; 4 - currently not suitable; 5 - not suitable
The output raster map of CEC suitability is given if the input value is raster map
Christian Thine Omuto
Sys, C., Van Ranst, E., Debaveye, J. and Beerneaert, F.1993. Land evaluation: Part III: Crop requirements. Development Cooperation, Belgium.
Naidu, L.G.K., Ramamurthy, V., Challa O., Hegde, R. and Krishnan, P. 2006. Manual, Soil-site Suitability Criteria for Major Crops, National Bureau of Soil Survey and Land Use Planning, ICAR, Nagpur, India
FAO Crop Suitability Requirements: http://ecocrop.fao.org/ecocrop/srv/en/home
tempSuit, PHSuit, rainSuit
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