suitabilityClass {soilassessment}

A function to determine suitability classes for given indicator values

Description

This function determines the suitability class to which a given indicator value falls based on the crop requirement

Usage

suitabilityClass(value,crop,factor)

Arguments

value

Input indicator value.

crop

The crop of interest for which suitability is determined.

factor

The suitability factor for crop requirement. Example factors include: rain, slope, carbonate, EC, ESP, depth, ph, temperature,

Value

The output is rainfall suitability class for the crop. The output is integer value for suitability class: 1- highly suitable; 2 - moderately suitable; 3 - marginally suitable; 4 - currently not suitable; 5 - not suitable

Note

This function assumes rainfall as the source of water for crop development. The input slope value must be in degrees

Author(s)

Christian Thine Omuto

References

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

See Also

suitability,slopeSuit, tempSuit

Examples

library(sp)
library(raster)
suitabilityClass(20.14,"saffron","slope")
slope=suitabinput["slope"]
slope$tea=slopeSuit(slope$slope,"tea")
slope$saffron=suitabilityClass(slope$slope,"saffron","slope")
summary(slope$saffron)
spplot(slope["tea"], main="Slope suitability for tea")
spplot(slope["saffron"], main="Slope suitability for saffron")