OPTIMIZING THE USE OF SINABUNG VOLCANIC ASH AND ORGANIC MATTER AS SOIL AMENDMENTS TO SUPPRESS LATE BLIGHT (PHYTOPHTHORA INFESTANS) AND INCREASE POTATO (SOLANUM TUBEROSUM) PRODUCTION IN THE KARO HIGHLANDS
Published:
2026-08-31Downloads
Abstract
This research was conducted in Surbakti Village, Simpang Empat District, Karo Regency, North Sumatra Province, Indonesia, at an altitude of approximately 1,250 meters above sea level (masl). The research was carried out from August to November 2025. This research was supervised by Dr. Ir. Muhammad Rizwan, M.P. as the Head Supervisor and Dr. Ir. Diapari Siregar, M.P. as the Assistant supervisor. Potato is a strategic horticultural commodity in North Sumatra, whose productivity has declined due to decreasing soil fertility and increasing pest and disease incidence. This study aimed to determine the effect of volcanic ash and organic matter formulations on soil nutrient status in potato cultivation fields in Surbakti Village.The experiment employed a Randomized Complete Block Design (RCBD). The first factor was the formulation of volcanic ash and organic matter, consisting of: A0 = control; A1 = 5 tons/ha (60% volcanic ash + 40% rice husk); A2 = 5 tons/ha (60% volcanic ash + 40% cattle manure); and A3 = 5 ton/ha (40% volcanic ash + 30% rice husk + 30% cattle manure). The second factor was the application time of the volcanic ash and organic matter, consisting of: B1 = one week before planting; B2 = at planting; and B3 = one week after planting.The results showed that the volcanic ash formulations significantly affected plant height, number of leaves per plant, stem diameter, number of tubers per plant, tuber yield, tuber diameter, and the severity of late blight disease. The application timing significantly affected plant height, number of leaves per plant, number of tubers per plant, tuber yield, and tuber diameter. Furthermore, the interaction between volcanic ash formulation and application timing significantly affected plant height and the number of leaves per plant
Keywords:
potato volcanic ash formulation volcanic ash application timingReferences
Abdillah, M. H. (2021). Memperbaiki serapan hara dengan aplikasi bahan organik untuk meningkatkan resistensi tanaman cabai terhadap virulensi kutukebul. Jurnal Agronomi Indonesia, 49(3), 280–287.
Agrios, G. N. (2005). Plant pathology (5th ed.). Elsevier Academic Press.
Anda, A. (2015). Properties of volcanic ash soils and their agricultural potential. Catena.
Anda, M., Dahlgren, R. A., & Khanna, P. K. (2015). Mineralogical characteristics of volcanic ash soils and implications for nutrient availability. Geoderma, 249–250, 54–63.
Aulia, F., Suwardji, S., Mulyati, M., & Susilowati, L. E. (2025). Peran amelioran dalam perbaikan kualitas tanah di lahan kering. Empiricism Journal, 6(4), 2640–2648. https://doi.org/10.36312/11ay8v58
Aytenew, M., & Bore, G. (2020). Effects of organic amendments on soil fertility and environmental quality: A review. Journal of Plant Sciences, 8(5), 146–156.
Badan Geologi Kementerian Energi dan Sumber Daya Mineral. (2014). Karakteristik abu vulkanik dan implikasinya terhadap kesuburan tanah. Kementerian ESDM.
Badan Pusat Statistik. (2024). Statistik Hortikultura Indonesia 2023. BPS.
Brady, N. C., & Weil, R. R. (2017). The nature and properties of soils (15th ed.). Pearson Education.
Dahlgren, R. A., Saigusa, M., & Ugolini, F. C. (2004). The nature, properties and management of volcanic soils. Advances in Agronomy, 82, 113–182.
Diacono, M., & Montemurro, F. (2010). Long-term effects of organic amendments on soil fertility and crop productivity. Agronomy for Sustainable Development, 30, 401–422.
Dinas Tanaman Pangan dan Hortikultura Sumatera Utara. (2024). Data produksi hortikultura Provinsi Sumatera Utara tahun 2020–2023.
Fiantis, D. (2006). Laju pelapukan kimia debu vulkanis G. Talang dan pengaruhnya terhadap proses pembentukan mineral liat non kristalin. Universitas Andalas.
Fiantis, D., Nelson, M., Shamshuddin, J., Goh, T. B., & Van Ranst, E. (2016). Nutrient dynamics in volcanic ash soils and implications for soil fertility management. Geoderma, 263, 38–47.
Fiantis, D., Nelson, M., Shamshuddin, J., Van Ranst, E., & Qafoku, N. P. (2019). Volcanic ash, volcanic soils and their fertility characteristics. Geoderma, 353, 115–127.
Food and Agriculture Organization. (2019). FAO potato production guidelines. FAO.
Fry, W. E. (2008). Phytophthora infestans: The plant (and R gene) destroyer. The American Phytopathological Society Press.
Ginting, R. S., Nasution, M. I., & Manik, H. (2022). Efektivitas fungisida terhadap Phytophthora infestans pada tanaman kentang. Jurnal Agroteknologi Tropika, 10(2), 55–63.
Guntzer, F., Keller, C., & Meunier, J. D. (2012). Benefits of plant silicon for crops: A review. Agronomy for Sustainable Development, 32, 201–213.
Hasan, F., & Kartika, J. G. (2020). Pengaruh pemberian pupuk organik cair dan dosis pupuk anorganik terhadap pertumbuhan dan hasil tanaman kentang (Solanum tuberosum L.). Jurnal Ilmiah Pertanian, 17(1), 11–20.
Havlin, J. L., Tisdale, S. L., Nelson, W. L., & Beaton, J. D. (2005). Soil fertility and fertilizers: An introduction to nutrient management (7th ed.). Pearson Education.
Hidayati, N., & Sari, R. A. (2022). Pengendalian hayati penyakit hawar daun pada kentang: Tantangan dan peluang. Jurnal Proteksi Tanaman, 8(1), 33–42.
Hue, N. V. (1992). Correcting soil acidity of a highly weathered Ultisol with chicken manure and sewage sludge. Communications in Soil Science and Plant Analysis, 23, 241–264.
Kementerian Pertanian RI. (2013). Pedoman umum budidaya pertanian organik. Direktorat Jenderal Hortikultura.
Koch, M., Naumann, M., Pawelzik, E., Gransee, A., & Thiel, H. (2020). The importance of potassium for potato production and tuber quality. Field Crops Research, 248, 107–112.
Lestari, I., Sucipto, H., & Waluyo, S. (2021). Karakteristik kimia abu vulkanik dan potensinya sebagai amelioran tanah masam. Jurnal Tanah dan Iklim, 45(1), 25–32.
Ma, J. F., & Yamaji, N. (2015). A cooperative system of silicon transport in plants. Trends in Plant Science, 20(7), 435–442.
Marschner, P. (2012). Mineral nutrition of higher plants (3rd ed.). Academic Press.
Miao, Z., Chen, J., Zhang, S., Shi, R., Dong, T., Zhao, Y., & Zhao, J. (2026). Soil amendments in cold regions: Applications, challenges and recommendations. Agriculture, 16(3), 326. https://doi.org/10.3390/agriculture16030326
Montgomery, D. C. (2017). Design and analysis of experiments (9th ed.). John Wiley & Sons.
Nanzyo, M., Shoji, S., & Dahlgren, R. A. (1993). Chemical characteristics of volcanic ash soils. In Volcanic ash soils: Genesis, properties and utilization. Elsevier.
Nugraha, T. A., Ningsih, S. R., & Budiastuti, R. (2021). Pemanfaatan abu vulkanik sebagai media tumbuh alternatif dan agen pengendali hayati. Jurnal Ilmu Pertanian Tropika, 6(2), 112–119.
Onder, S., Caliskan, M. E., Onder, D., & Caliskan, S. (2018). Effects of irrigation and potassium fertilization on potato yield and quality. Agricultural Water Management, 201, 1–8.
Paradelo, R., Pedreno, J. N., Glaser, B., Grobelak, A., Kowalska, A., & Singh, B. R. (2024). Potential and constraints of use of organic amendments from agricultural residues for improvement of soil properties. Sustainability, 16(1), 158. https://doi.org/10.3390/su16010158
Pardede, N. D., & Sipayung, A. (2021). Pengaruh pemberian pupuk organik dan dosis NPK terhadap pertumbuhan dan produksi tanaman kentang (Solanum tuberosum L.). Jurnal Agroekoteknologi, 9(1), 45–52.
Purba, R., & Simbolon, E. (2020). Prospek pengembangan kentang sebagai komoditas unggulan hortikultura. Buletin Hortikultura, 18(1), 20–30.
Purwaningsih, D., Nugroho, B. H., & Fitriani, A. (2020). Hubungan status hara dengan ketahanan tanaman kentang terhadap hawar daun. Jurnal Ilmu Tanaman, 27(3), 177–183.
Rajmi, S. L., Gusnidar, G., & Fiantis, D. (2022). Analisis spasial sebaran material dan sifat kimia abu vulkanis hasil erupsi Gunung Sinabung tahun 2019. Jurnal Ilmu-Ilmu Pertanian Indonesia, 24(1), 62–68.
Ramadhan, R., Wibowo, A., & Safitri, D. (2022). Analisis tingkat serangan Phytophthora infestans pada tanaman kentang berdasarkan kesehatan tanah dan status hara. Agrovigor, 15(2), 110–118.
Shoji, S., Nanzyo, M., & Dahlgren, R. A. (1993). Volcanic ash soils: Genesis, properties and utilization. Elsevier.
Sihaloho, N. K. (2021). Kajian sifat kimia tanah pada lahan terdampak abu vulkanik Gunung Sinabung. Jurnal Agroteknosains, 5(1), 57–66.
Simanjuntak, E. P., & Gultom, D. A. (2022). Respons pertumbuhan dan hasil kentang terhadap pemberian abu vulkanik Gunung Sinabung di tanah Andosol Karo. Jurnal Hortikultura Tropika, 9(1), 55–63.
Suharta, N., Rochayati, S., & Subardja, D. (2018). Sifat kimia abu vulkanik dan pengaruhnya terhadap produktivitas tanaman. Jurnal Sumberdaya Lahan, 12(1), 1–11.
Sukarman, & Suparto. (2014). Sebaran dan karakteristik material vulkanik hasil erupsi Gunung Sinabung di Sumatera Utara. Balai Besar Litbang Sumberdaya Lahan Pertanian.
Sumani, & Hidayat. (2005). Unsur hara air tanah dan tanaman. Universitas Brawijaya.
Suryanto, A., & Mulyati, E. (2021). Peran silika terhadap ketahanan tanaman terhadap patogen tular udara. Jurnal Hortikultura Indonesia, 14(1), 45–52.
Taiz, L., Zeiger, E., Møller, I. M., & Murphy, A. (2015). Plant physiology and development (6th ed.). Sinauer Associates.
Xue, X., Geng, T., Liu, H., Yang, W., Zhong, W., Zhang, Z., Zhu, C., & Chu, Z. (2021). Foliar application of silicon enhances resistance against Phytophthora infestans through the ET/JA- and NPR-1-dependent signaling pathways in potato. Frontiers in Plant Science, 12, 609870.
Zhang, X., Wang, L., Ma, F., & Jiang, W. (2018). Effects of organic fertilizer on soil microbial biomass, enzyme activity and crop yield: A meta-analysis. Sustainability, 10(12), 4706. https://doi.org/10.3390/su10124706
Zörb, C., Senbayram, M., & Peiter, E. (2014). Potassium in agriculture—Status and perspectives. Journal of Plant Physiology, 171(9), 656–669
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