Land Suitability for Rice by Agro-Ecological Zone in Majene Regency, West Sulawesi, Indonesia

Syamsuddin and Marthen P. Sirappa

Journal of Agricultural Studies, 2018, vol. 6, issue 1, 68-84

Abstract: In order to support the self-sufficiency of food, especially rice, the government made special efforts to increase rice production in several ways, such as increased production, improved cropping index, and the expansion of planting area. In relation to the increase in crop production, data and information of land resource is necessary for optimal land use, focused and efficient through the surveying and mapping of land resources. Land surveying and mapping activities carried out in Majene Regency on a scale of 1: 50,000. Its objective was to determine the land suitability for food crops, especially lowland rice and upland rice in Majene Regency, West Sulawesi to support self-sufficiency in rice. Land evaluation results indicate that the suitability of land for rice crops of the total land area of 91,322 ha survey are as follows: (a) land that is quite appropriate (S2) for lowland rice area of 6,259 ha (6.85%) consists of two subclasses, namely S2wa an area of 5,552 ha (6.08%) by a factor limiting the availability of water (moderate rainfall), and S2wa, eh area of 707 ha (0.77%) by a factor limiting the availability of water and slopes of 3-8%; (b) land that is quite appropriate (S2) for upland rice area of 4,957 ha (5.42%), consists of two subclasses, namely S2na an area of 4,250 ha (4.65%) by a factor limiting the availability of nutrients low-medium, and S2na, eh area of 707 ha (0.77%) with the limiting factor being the availability of nutrients and low-slope 3-8%; while land classified in accordance marginal (S3) for upland rice area of 1,816 ha (1.99%), consists of two subclasses, namely S3rc an area of 1,302 ha (1.43%) with limiting factors impeded drainage, and S3eh an area of 514 ha (0.56%) with limiting factor willayah wavy shape/slope of 8-15%; and (c) land that is classified as not suitable (N) area of 84,227-84,741 ha or approximately 92.23 to 92.79% with a limiting factor slopes > 15%, very shallow soil, drainage severely hampered, and the danger of sulfidic materials.

Keywords: Land suitability; rice plants; the limiting factor; Agro-Ecological Zones (search for similar items in EconPapers)
Date: 2018
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