<![CDATA[The objective of this research is to evaluate the suitability of land for horticultural crops, particularly citrus cultivation, in an effort to increase productivity and support food security in Indonesia. The FAO land evaluation workflow through the Analytic Hierarchy Process (AHP) method was employed, together with the geographic information system (GIS), with several stages of activities such as preparation, survey and data analysis. In the initial stage, a land unit (LU) was formed to facilitate survey activities, data collection and data analysis. The data are analyzed for actual land suitability, followed by AHP analysis to determine relative priorities and potential land suitability. Our study shows that AHP technology is very effective in determining priority weights, as indicated by a consistency ratio (CR) value of <0.1. This condition implies a high and strong dependence on the environment. Environmental parameters that influence the evaluation and have a significant impact on citrus land suitability include rainfall (16%), drainage (15%), soil texture (12%) and erosion risk (4%). The results of the AHP analysis show that 18.57% of the study area is highly suitable (S1) for citrus plants; 65.28% is moderately suitable (S2); and 16.15% is slightly suitable (S3). The principal constraints of the soils are low nutrient content, poor rooting condition, and erosion risk. According to the study, management techniques such as the incorporation of organic matter and inorganic fertilizers, and the addition of mounding soil for plant systems, such as surface or subsurface drains, are required for long-term productivity.]]>
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