AN APPLICATION OF GEOCHEMICAL AND GEOPHYSICAL DATA IN IDENTIFYING THE SUITABILITY OF RAIN RICE FIELDS AT THE SUMATRAN INSTITUTE OF TECHNOLOGY CASE STUDY: SOUTH LAMPUNG, INDONESIA
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Abstract
South Lampung Regency is the second centre of rice production in Lampung Province based on the 2016 census results. The superior commodity in agriculture in South Lampung Regency is rice. To increase rice productivity, it is necessary to conduct a land suitability study. The purpose of this research is to study the suitability of rainfed lowland rice at the Sumatra Institute of Technology. The methods used are geophysical and geochemical. The results obtained based on the resistivity value showed that the soil in the study area was andosol soil. This fertile soil comes from weathering of tuff rocks. This soil is suitable as a medium for the growth of rainfed rice plants. Based on the land suitability map based on soil pH and temperature, the research area consists of class S1 (highly suitable) indicating that the land is suitable and meets the requirements in land suitability and class S2 (moderate suitable) which needs to be fertilized such as organic fertilizers and inorganic fertilizers such as fertilizers. NPK. These results can later be used to prepare ITERA in developing rainfed lowland rice plants.
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