Research Article

Establishing Land Suitability Criteria for Cashew (Anacardium occidentale L.) in Indonesia

Table 3

Data summary of cashew production, used for validity test.

Site
code
Age-adjusted
Production (kg·tree−1)
Land suitability class Validation test result**
According to age-adjusted
production
Soil Depth Surface Rock Slope Elevation Dry month Wet month Rainfall pH Organic-C Total-N Available-P Exchangeable-K Base sat. Clay content Sand content CEC According
to land
characteristics*

A125.94S3S1S1S1S1S1S2S2S3S1S1S2S2S2S1S2S1S31
Al222.68S3S1S1S1S1S1S2S1S3S1S1S2S2S2S1S2S1S31
B119.21NS2S1S1S1S1S2S2S3S1S1S2S1S1NS3S2N1
F.15122.43S3S1S1S1S1S1S3S1S1S1S1S3S1S1S1S1S1S31
F.2830.12S3S1S1S1S1S3S1S1S1S1S1S1S1S1S1S3S1S31
F.2926.29S3S1S1S1S3S3S3S1S1S1S1S2S1S1S1S2S1S31
F.3121.72S3S1S1S1S1S3S1S1S1S1S1S3S1S1S1S1S1S31
ML134.72S3S1S1S1S2S1S3S1S3S1S1S3S1S1S1S1S1S31
ML352.11S3S1S1S2S1S1S3S1S2S1S1S3S1S1S1S1S1S31
O121.98S3S1S1S2S1S1S2S2S2S1S1S2S1S1S2S3S1S31
PK352.95S3S1S1S3S2S2S3S3S3S1S1S2S1S1S2S3S3S31
PK455.58S2S1S1S2S2S2S2S3S3S1S1S2S2S2S3S3S3S30
SA129.49S3S1S1S1S1S2S2S1S3S2S2S2S1S1S2S3S3S31
Y125.88NS1S1S3S1S1S2S1S1S1S1S2S1S1NS3S1N1
Y149.70NS1S1S2S1S1S1S1S2S2S1S2S1S1S1S1S1S20
Y1611.78NS1S1S1S1S1S1S1S1S2S1S3S1S1NS3S1N1
Y1819.66NS1S1S1S2S1S1S10S2S3S2S1S1S1S2S1S30
Y1960.04NS1S1S1S2S1S1S10S2S1S2S1S1NS3S1N1
Y2798.00S1S1S2S1S2S1S1S1S2S1S1S1S1S1S1S1S1S20
Y611.28NS1S1S1S1S1S1S1S1S1S1S3S2S2NS3S1N1

Note: *using the principle of maximum limitation method.
**1 means valid, where result of land suitability class according to production give the same result with the land suitability class according to land characteristics.
0 means invalid, where result of land suitability class according to production gives the different result with the land suitability class according to land characteristics.