Application of Bacillus spp. and Potassium Fertilizer Against Corn Downy Mildew Disease
DOI:
https://doi.org/10.70609/g-tech.v10i3.10422Keywords:
Bacillus subtilis, Biological agents, Corn, Peronosclerospora sp., PotassiumAbstract
Downy mildew is an important disease in corn cultivation caused by Peronosclerospora spp. There are many different pathogen species such as P. maydis, P. sorghi. Losses reach 50-80% in corn fields. The use of synthetic fungicides has a negative impact because it destroys natural enemies, resulting in pathogen resistance and plant residues. Balanced biological agents and fertilization are solutions to replace chemical fungicides. The aim of this study was to obtain the best dosage of Bacillus sp. and potassium fertilizer to suppress downy mildew and corn growth. The research method used a factorial Randomized Block Design (RBD). The dosage of Bacillus sp. was B0 (0 g), B1 (15 ml), B2 (20 ml). The dosage of potassium fertilizer (KCl) was 3 K0 (0 g/plant), K1 (6 g/plant), K2 (9 g/plant). There were 9 treatment combinations, 3 replications, so there were 27 treatment units. Plant height, number of leaves, temperature, humidity, disease incidence and disease intensity were observed. The treatment of the biological agent Bacillus spp. and the best potassium fertilizers are B1K0, B2K0 and B2K2 which are able to suppress the incidence of corn downy mildew disease, but are not yet able to produce plant height and number of corn leaves.
References
Asri, Jahuddin, R., & Kumalasari, A. S. (2024). KETAHANAN BEBERAPA VARIETAS JAGUNG Philippinensis ) DI DI DESA BUNGUNG LOE KAB . JENEPONTO Resistence Of Some Maize Varieties ( Zea Mays L ) To Tarble Disease ( Peronosclerospora Philippinensis ) In Bungung Loe Village , Jeneponto Regency. Journal Agroecotech Indonesia, 3(1), 102–107.
Bahena, M., Serna, A., Najera, D., & Dorantes, A. (2025). Inoculación de bacterias y hongos promotores del crecimiento inicial del maíz criollo azul. CIENCIA E INNOVACIÓN AGROALIMENTARIA DE LA UNIVERSIDAD DE GUANAJUATO, 6, 143–153.
Bayindir, U., Kucukyumuk, Z. (2025). The Effects of Pottasium on Plant Nutrient Concentration, Plant Development and Rhizoctonia Rot (Rhizoctonia solani) in Pepper. Horticulturae. 11(516), 1-10. https://doi.org/10.3390/horticulturae11050516
Djaenuddin, N., Hary, S., Muis, A., & Azrai, M. (2021). Antagonistic Bacteria Bacillus subtilis Formulation as Biopesticide to Control Corn Downy Mildew caused by Peronosclerospora philippinensis. 11(6), 2148–2152.
Djaenuddin, N., Patandjengi, B., & Kuswinanti, T. (2020). Short Communication : Potential tests of plant growth bacteria for the control of Peronosclerospora philipinensis in corn. 21(8), 3886–3892. https://doi.org/10.13057/biodiv/d210859
Firmansyah, F., Suharjono, S., & Hadiyanto, D. K. (2022). Pengaruh Dosis Pupuk Kalium dan Pupuk Organik Cair terhadap Persentase Serangan Penyakit Bulai dan Potensi Hasil Benih Jagung Manis (Zea mays saccarata L.) Hibrida. Agrosaintifika, 4(1), 254–265. https://doi.org/10.32764/agrosaintifika.v4i1.2390
Habibi, A., Nurcahyanti, S., & Majid, A. (2017). Pengaruh Varietas dan Dosis Pupuk Kalium terhadap Perkembangan Penyakit Bulai (Peronosclerospora maydis Rac.Saw), Pertumbuhan dan Produksi Jagung. J. Agrotek Trop, 6(2), 68–75.
Idah, A. N. (2024). Potensi Bakteri Rizosfer Dalam Memacu Pertumbuhan Padi. Skripsi, 1-48.
Khoiri, S., Badami, K., Pawana, G., & Utami, C. S. (2021). Efektivitas Isolat-Isolat Bacillus sebagai Pengendali Penyakit Bulai dan Pemacu Pertumbuhan Tanaman Jagung pada Kondisi Terkontrol. Rekayasa, 14(2), 144–151. https://doi.org/10.21107/rekayasa.v14i2.10270
Mirsam, H., Suriani, Azrai, M., Muis, A., Nonci, N., Makkulawu, A. T., & Iriany, R. N. (2023). Resistance Assessment of Hybrid Corn Genotypes to Major Corn Diseases and Its Effects on Disease Epidemic Components in South Sulawesi, Indonesia. BIO Web of Conferences, 69, 1–18. https://doi.org/10.1051/bioconf/20236901029
Mugiastuti, E., Manan, A., & Soesanto, L. (2023). Biological control of maize downy mildew with the antagonistic bacterial consortium. 24(9), 4644–4650. https://doi.org/10.13057/biodiv/d240904
Nirwanto, H., & Sutikno. (2024). Distribusi Penyakit Bulai Jagung ( Peronosclerospora maydis ) pada Lahan Pertanaman Jagung dengan Pendekatan Geostatistik Distribution of Downy Mildew ( Peronosclerospora maydis ) on Maize Plots Based on Geospatial Approach. Jurnal Penelitian Pertanian Terapan, 24(4), 504–516.
Ortel, C.C., Roberts, T.L., Rupe, J.C. (2024). A review of the interaction between potassium nutrition and plant diseases control. Agrosyst Geosci Environ. 2024;7:e20489. https://doi.org/10.1002/agg2.20489.
Rahim, I., Nurbaya, Ilmi, N., Sukmawati, Putera, M. I., Suherman, & Yamin, M. (2024). Morphological Character and Clorophyl Content Index of Corn Infected with Dowry Disease on Land Applied With Slow Realease Fertilizer Based on Corn Cob Biochar. Journal of Agriculture ( JoA ), 3(1), 12–23.
Rashwan, B. R. A., & Shaheen, A. E. A. (2021). The Impact of Potassium Sources and Bio Fertilizer on Corn Plant and Potassium Availability in Calcareous Soil. Asian Soil Research Journal, 5(1), 27–37. https://doi.org/10.9734/ASRJ/2021/v5i130099
Reina-hernández, R., Ayvar-serna, S., Arispe-vázquez, J. L., Terrones-salgado, J., Muñoz-arenas, L. C., Barrón-bravo, O. G., Díaz-nájera, J. F., Jiménez-pérez, O., & Cadena-zamudio, D. A. (2026). Inoculation with growth- growth - promoting microorganisms and their impact on the initial development of maize seedlings ( Zea mays L .). 54(1), 1–16.
Salama, D. M., El Aziz, M., Osman, S., Elwahed, M., & SHaaban, E. (2026). Morpho-physiological and biochemical responses and genomic stability of sweet corn ( Zea Mays L . saccharata ) to potassium ferrite. BMC Plant Biology, 26(380), 1–22.
Sitanggang, R., Syamsafitri, & Chaniago, N. (2025). IDENTIFICATION AND MORPHOLOGICAL CHARACTERIZATION OF PERONOSCLEROSPORA MAYDIS CAUSING DOWNY MILDEW ON. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET), 4(12), 749–756.
Solihin, E., Sudirja, R., & Kamaludin, N. (2019). Aplikasi Pupuk Kalium dalam Meningkatkan Pertumbuhan dan Hasil Tanaman Jagung Manis ( Zea mays L .). 30(2), 40–45.
Sukorini, H., & Doeswitawati, D. (2023). EFEKTIFITAS PENULARAN PENYAKIT BULAI PADA DUA VARIETAS TANAMAN JAGUNG Henik Sukorini Dyah Roeswitawati (Pertama). Penerbit Universitas Muhammadiyah Malang.
Sulfitri, N. F., Parawansa, A. K., & Gani, M. S. (2024). Isolasi dan Identifikasi Serangan Penyakit Bulai ( Peronosclerospora philippinensis Shaw) pada Tanaman Jagung (Zea mays L.) di Kabupaten Maros. AGrotekMAS, 5(2), 214–221.
Syaiful, A., Suroso, B., Wijaya, I., Iwan, M., & Jalil, A. (2024). Peran nutrisi terhadap serangan hama dan penyakit tanaman jagung pada berbagai kondisi tanah. Journal of Agricultural Sciences, 22(1), 1–19.
Ukhtani, A. E., Djatmiko, H. A., & Windriyati, R. D. H. (2025). Identifikasi dan Intensitas Penyakit Bulai pada Jagung di Dua Ketinggian Tempat. Cemara, 22(2), 87–94.
Ulhaq, M. A., & Masnilah, R. (2019). Pengaruh Penggunaan Beberapa Varietas dan Aplikasi Pseudomonas fluorescens untuk Mengendalikan Penyakit Bulai (Peronosclerospora maydis) pada Tanaman Jagung (Zea mays L.). Jurnal Pengendalian Hayati, 2(1), 1. https://doi.org/10.19184/jph.v2i1.17131
Usmadi, U., Elfrida, T. L., & Hartatik, S. (2023). Aplikasi Paclobutrazol dan Pupuk Kalium terhadap Pertumbuhan dan Hasil Tanaman Jagung Manis (Zea mays saccharata Sturt). Jurnal Penelitian IPTEKS, 8(2), 205–213. https://doi.org/10.32528/ipteks.v8i2.17146
Wahyudi, Selviani, Z., Wati, T. A. S., Sari, N. N. Y. P., Jayanti, W. H., Dirmawati, S. R., Aeny, T. N., & Suharjo, R. (2025). Kajian taksonomi penyakit bulai pada tanaman jagung dan pengendaliannya. Jurnal Proteksi Agrikultura, 2(1), 13–21. https://jpa.fp.unila.ac.id/index.php/jpa/article/view/8
Widiantini, F., Pitaloka, D. J., Nasahi, C., & Yulia, E. (2017). PerkecambahanPeronosclerospora spp. Asal Beberapa Daerah di Jawa Barat pada Fungisida Berbahan Aktif Metalaksil, Dimetomorf dan Fenamidon. Agrikultura, 28(2), 95–102. https://doi.org/10.24198/agrikultura.v28i2.15753
Windriyati, R. D. H., Wulansari, N. K., & Adisonda, R. (2023). Pengaruh Agens Hayati Terhadap Insiden Penyakit Bulai pada Jagung. G-Tech: Jurnal Teknologi Terapan, 8(1), 322–329. https://doi.org/10.33379/gtech.v8i1.3701
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