Transformation of land uses from several semi-arid agroecosystems in Indonesia: forest to settlement, dryland agriculture, and others had affected to soil erosion. This study was conducted to evaluate soil erosion at semi-arid Manikin Baki watershed, West Timor, Indonesia. USLE method was used to predict soil erosion supporting ArcGIS 10.3 software. The results showed that the highest soil erosion occurred at dryland farming (60.22% with total land cover 11% of total areas), while the smallest one went to the forest (0.20% with total land cover 42% of total areas). Another finding that soil erosion at Manikin Baki watershed was dominated by class I (12,251.77 Ha; 64.38% of total areas), while the smallest one was majored for class IV (1.59% of total areas).

Corn is one of the important food ingredients for Indonesian people, to maximize the important role of corn as a staple food for the community, it can be done by improving the psychology about their decision to manage and consume the corn. This research aims to find out the effect of farmers’ psychological factors on the application of fermentation bose corn technology in Setetes Madu Fatuleu farmer group association. This research was held in Camplong village II Fatuleu District Kupang Regency of East Nusa Tenggara using quantitative research as an explanation survey research method and the participants of all Setetes Madu Fatuleu Farmer Group Association that cultivate the corn is amount 55 participants. Data analysis in this research using multiple linear regression analysis. The result showed: (1) psychological factors consisting of knowledge, motivation and attitudes together had a significant effect of 53,8% on the application of fermented bose corn technology in Setetes Madu Fatuleu Farmers Group Association, (2) psychological factors consisting of knowledge and each motivation has a significant effect of 46,6% for knowledge and 27,2% for the motivation factor of participant Setetes Madu Fatuleu Farmers Group Association on the application of fermented bose corn technology, while the attitude factor of the Setetes Madu Fatuleu Farmers has no effect on the application of fermentation bose corn technology.

The aim of this study is to determine the effect of Manganese (Mn) mine in Supul village on the water quality of the residents' dug wells. Research method is used purposive sampling. Water sampling is required for chemical and biological analysis in the laboratory to determine the content of Fe, Mn, E. coli bacteria and pH level in the water. The results showed that the terms of threshold levels of Fe, Mn, and pH values, well water in Hamlet C (Oefenu) which is 200 to 300 meters away that is more polluted than others because those parameters are over the average threshold that required by the Ministry of Health on drinking and cleaning water quality standards. This condition is caused by very close to the mine site and the tailing Manganese.

No abstract

The study was conducted to determine the land capability class in the Manikin Baki watershed, identify limiting and potential factors on the land and determine the actions taken to overcome existing limiting factors for sustainable land use. The method used is matching to 9 factors that are potential and limiting. The results showed that the Land Capability Class in Manikin Baki watershed was dominated by land capability class III with 55.77% of the total research location. The main factor that is limiting is the slope. Conservation action that needs to be done in order to overcome the limiting factors is to carry out heavy conservation in the form of making terraces.