Uska Peku Jawang 1, Anggreni Madik Linda 2, Marten U. Nganji 1, Yonce M. Killa 1, Lusia Danga Lewu 1, Melycorianda H. Ndapamuri 1 and Suryani KKL Kapoe 1
1 Christian University of Wira Wacana Sumba, Study Program of Agrotechnology, Indonesia
2 Christian University of Wira Wacana Sumba, Study Program of Agribussiness, Indonesia
Jawang, U. P., Linda, A. M., Nganji, M. U., Killa, Y. M., Lewu, L. D., Ndapamuri, M. H. & Kapoe, S. K. K. L. (2025). Evaluation of dryland agricultural soil chemical quality in Haharu district, East Sumba Regency. Bulg. J. Agric. Sci., 31(3), 469–475
Limited information on soil quality on dry land has resulted in efforts to increase agricultural land productivity not going well. The purpose of obtaining data and information on the status of soil chemical quality and directions for dryland agricultural development. The research methods used were survey method and land evaluation with lowery soil quality approach. The results obtained soil chemical values with a pH of 6.2–7.2, C-organic 0.44–5.35, N-total 0.04–0.88, P-total 6.19–138.92, K-total 8.22–103.94, CEC 22.31–40.72. Status of unhealthy soil quality at locations WUN1, RAM1, MBA2, unhealthy at locations NAP3, NAP4, PRA1, WUN2, and healthy soil at locations KAL1, KAL2, KAL3, NAP1, NAP2, KAD1, KAD2, WUN3, PRA1, MBA1, MBA2, MBA3, PRA3, PRA4, PRA5. Directions for improving limiting factors in locations with unhealthy and unhealthy soil categories by adding organic matter and site-specific balanced fertilization by utilizing site-specific organic matter.