Rice crop phenology analysis during rendeng season using remote sensing data: an EVI-2 ratio approach of Aceh Besar regency rice field

Information about rice phase growth is essential forpredicting of rice production, and to ensure food security program, especially during Rendeng season of rice field. The use of remote sensing data is very helpful in the process of determining the phases of plant growth. Information about the condition of the rice plant is very important to be able to estimate the growth phases and the planting season that fittingwithin the control of the production results of the rice field. This research aims to analyze phenology of rice crops during Rendeng season using remote sensing data by utilizing EVI-2 ratio. The methods used in this research is a descriptive method of quantitative interpretation with Landsat 8 OLI data.Classification on phenology phase was carried out fro the selected area of Aceh Besar District, Aceh. Results show that phenology cycle of rice crop during Rendengseason vary, ranging from low greenness to high greenness. The total area for each phase of growth also varies, with peak area occur inJanuary.There are cyclical differences of different rice plant phenology in the Rendeng in Aceh Besar District. The differences of planting times by the farmers resulted in the existence of the value of the EVI-2 ratio variation in the area. January is the higher values of the greenness of rice crop then drop to February to March. The value of the ratio of EVI-2 experience increases with the total area of rice plant in accordance with the phases of growth of the rice plant.