Optimization of the LEISA System and Development of a Bioremidiation Model In-Situ Potato Cultivation (Solanum Tuberosum L.) Granola Varieties

The long-term goal is an in-situ bioremediation model using an agricultural system with a low external input system on sustainable agriculture (LEISA) on potato cultivated agricultural land, so that the potato (Solanum Tuberosum L.) consumption produced (1) increases, (2) quality , (3) high competitiveness, and (4) quality is guaranteed. The scope of the study are (1) identification of reduction of insecticide and fungicide contamination, (2) identification of the effectiveness of microbes conducting in-situ bioremediation processes in cultivated land for consumption potatoes due to the application of the LEISA system and (3) optimization of the quantity and quality of consumption potatoes produced.
In 2015 the research focused on: (1) identification of the level of pesticide contamination in potato cultivated land, (2) study of the degradation rate of pesticide residues by microbial activity in the bioremediation process in-situdan (3) study of potato quality as a result of the implementation of the LEISA system. Observation of the level of pesticide contamination and quality of potato tubers is observed periodically (potato plants aged: 1 month, 1.5 months, 2 months, 2.5 months and 3 months). Both observations were made to find the optimal application of the LEISA system to support the bioremediation process and produce quality potatoes. Potato cultivation trials with compost fertilizer treatment (10 tons / ha, 15 tons / ha, 20 tons / ha, and 25 tons / ha) were combined with compost (chicken manure and cow manure) treatments in the dry and rainy season, this is to find the most effective in-situ bioremediation model with an optimal LEISA system.
Research activities in 2016 are focused on studying the most optimal LEISA system for increasing nutrient availability and optimizing potato production. The parameters of the study are: (1) soil psychochemical characteristics, (2) soil biological characteristics, (3) plant and tuber development, (4) land productivity (number of potatoes produced per unit area) and (5) quality of potato tubers (size distribution of tuber weight, level of pesticide contamination in tuber, and percentage of tuber damaged / rotten).
The 2017 research activity is a study of the impact of implementing the LEISA system and the in-situ bioremediation model on: (1) efficient use of potato cultivation facilities (NPK fertilizer and medicines), (2) land productivity, (3) quality of potato tubers produced and ( 4) economic analysis. The LEISA system test research was conducted on ten potato farmers with an area of ​​200 m2 each, and cultivation was carried out in the rainy and dry seasons.