Land Suitability Index for Estimating Sugar Cane Productivity in the Humid Tropics of South Sulawesi Indonesia
This research was completed using mixed qualitative and quantitative methods. Field surveys were executed in sugar cane plantation throughout South Sulawesi Indonesia. Land suitability analyses were performed using a parametric approach with Storie’s index equation followed up with correlation ana...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Lampung
2016-05-01
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| Series: | Journal of Tropical Soils |
| Online Access: | http://journal.unila.ac.id/index.php/tropicalsoil/article/view/1028/pdf |
| Summary: | This research was completed using mixed qualitative and quantitative methods. Field surveys were executed in
sugar cane plantation throughout South Sulawesi Indonesia. Land suitability analyses were performed using a
parametric approach with Storie’s index equation followed up with correlation analysis using the Pearson correlation.
Results revealed that the period for sugarcane crop growth in the humid tropic relatively dry regions of South
Sulawesi Indonesia lasted for the months of November to July. The land suitability for sugar cane in the research
location was moderately suitable (S2c) and marginally suitable (S3c, S3s, S3s,f and S3c,w) with limiting factors such
as relative humidity during crop maturation phase, the duration of sunlight, soil depth, soil texture, soil pH and soil
drainage. Land suitability index at the research location ranged from 25.2 to 55.0; sugar cane yields ranged from 30.3
to 62.0 Mg ha-1 year-1. Pearson correlation coefficient (r) between LSI with cane and sugar productivity were 0.81 and
0.84 respectively, signifying the strength of the correlation between the two values. This also indicates that land
suitability index can be estimating the potential crop yield in the humid tropicsthat relatively dry climate regions. |
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| ISSN: | 0852-257X 2086-6682 |