The aim of the research was to determine the chemical properties of the soil in the rice fields of the Semangga district. The research method used is survey method. This research was conducted in 3 villages in the Semangga district which had rice fields. Soil sampling was carried out in a composite manner by taking soil samples at a depth of 0-25 cm. Soil samples were analyzed at the Bogor Environmental Biotechnology Laboratory. Based on the analysis results obtained data on soil chemical properties pH, C-organic, and cation exchange capacity (CEC). Based on the research results, the pH value was obtained from neutral to acid. The neutral pH value was found at location A, which was 7.61, at location B, the pH value was 4.42, and at location C, the pH value was 4.75. C-organic from the results of research at 3 locations is classified as moderate to high. At location A the soil organic matter value was 1.19, at location B the soil organic C value was 6.30 and at C location the soil organic C value was 4.11. Cation exchange capacity (CEC) at the study site was classified as moderate to high. At location A it has a cation exchange capacity value of 21.46 cmol/kg, at location B it has a cation exchange capacity value of 30.00, and at location C it has a cation exchange capacity value of 29.12.

Banana is a horticultural commodity that is widely consumed by people in Indonesia, especially in Merauke Regency. Increased production of banana plants is strongly influenced by the quality of seeds and preparation of planting media in the field. This service aims to provide an understanding to the community about the development of banana plants using organic fertilizers and utilizing the potential of unused land in Kweel Village. The implementation of activities includes counseling with a participatory system and demonstration of banana plant development plots. The solutions offered in this activity are; 1) Providing counseling about the benefits of managing livestock waste as organic fertilizer, 2) Providing assistance in processing livestock manure as organic fertilizer and 3) conducting technical guidance and demonstration of banana plant development plots. The targeted outputs of this Partner Village Development program include guidelines for the use of organic fertilizers for banana cultivation, publication of articles in nationally accredited journals, and publication of print/online media.

Sota Village is one of the villages located in Sota District, Merauke Regency with an area of 698.13 km2 of the four other villages in Sota District, Sota Village is the largest area which reaches 26.85% of the Sota District area. Most of the agricultural area in Sota District is located around residential areas is the wet and dry soil. One of the dry soil in Sota Village is dominated by horticultural plants such as Brassica oleraceae L. plants. Brassica oleraceae L. is a horticultural plants that is favored by consumers in the city of Merauke. However, the problem that greatly affects the production of Brassica oleraceae L. plants is the attack of pests and diseases. The approach method to solve these problems is by way of guidance and assistance to farmers through a persuasive approach by applying the concept of Integrated Pest and Disease Management (IPDM). This activity is expected to provide an understanding to Brassica oleraceae L. farmers regarding the proper and correct use of pesticides according to regulations so that plant pests do not become resistant, and in the end can increase the growth and production of Brassica oleraceae L. plants. The evaluation results show that farmers have carried out pest and disease control by following the applicable regulations or the standard operating procedure.

The growth of kale is strongly influenced by environmental conditions, one of which is the level of soil fertility. Soil with less fertile conditions can cause plants to grow not optimally. This study aims to determine the effect of a combination of organic fertilizers on the growth of kale on marginal soils. This study used a randomized block design with a combination dose of organic fertilizer consisting of 5 levels of treatment, namely control (P0), 5 tons ha-1 (P1), 10 tons ha-1 (P2), 15 tons ha-1 (P3). ), and 20 tons ha-1 (P4). The variables observed were plant height, number of leaves, leaf area, number of branches and fresh weight. Observational data were analyzed for variance, which showed a significant effect followed by Duncan's Multiple Range Test (DMRT). The results showed that the combination treatment of organic fertilizer had a significant effect on the growth of kale. The best combination treatment of organic fertilizer was obtained by treatment of cow dung + chicken at a dose of 20 tons ha-1 (P4) with an increase in fresh weight of kale by 87.49% compared to the control