Soil is a resource key for sustainable agriculture, environment, and food security. It is highly important to understand the factors that cause complex soil problems as well as the solutions to overcome. One of our contributions was through this International Seminar and 12th Congress of Indonesian Soil Science Society (ISCO-ISS 2019) which was held from August 5-7, 2019 in Bandung, West Java, Indonesia. The theme of the seminar was Land Resource Management and Agriculture Innovation towards Sustainable Environment and Food Security.On behalf of the committee, we would like to extend a sincere gratitude to all participants, invited speakers, and especially the President of International Union of Soil Science (IUSS) who have made this event possible. The seminar was jointly organized with Universitas Padjadjaran Indonesia, and significantly supported by Ministry of Research Technology and Higher Education, Ministry of Agrarian Affairs and Spatial Planning/National Land Agency, Ministry of Agriculture Republic of Indonesia, Oil Palm Plantation Fund Management Agency, and PT. Riau Andalan Pulp and Paper Indonesia.The seminar was attended by approximately three hundred and fifty participants from eight countries, including researchers, lecturers, students, government institutions and non-governmental organizations. This scientific meeting was arranged into three general plenary presentations by ten invited speakers; five parallel sessions as well as poster sessions. The subjects range from Soil Health and Fertility, Biodiversity and Bioresources; Soil Physic, Water Conservation and Agroforestry; Land Use Planning and Policy, Socio-cultural and Economical Aspect of Land Management; Soil Mineralogy, Genesis and Classification; Mining Reclamation and Environment Disaster Management; and Digital Agriculture, Integrated Farming System, and Green Technology. All papers have under gone the careful peer-reviewed by expert referees to the qualified standard before being selected for publication in this proceeding.High appreciation dedicated to the committee who have worked very hard and the reviewers who gave their valuable comments and suggestions for improving the quality of manuscripts in this conference proceedings.DR. ANNE NURBAITYChair of ISCO-ISS 2019 CommitteeChair of Indonesian Soil Science Society Commissariat West Java