Efektivitas Konsorsium Mikroba Pelarut Fosfat Lokal dalam Formulasi Pupuk Cair Organik terhadap Pertumbuhan Cabai Rawit

Taofi Kussani; Juita Fahrani

Authors

Taofi Kussani Universitas Mataram
Juita Fahrani Universitas Mataram

Keywords:

Phosphate-Solubilizing Microbes, Organic Liquid Fertilizer , Bird’s Eye Chili , Microbial Consortium , Plant Growth

Abstract

Declining soil fertility and limited phosphorus availability are key constraints to enhancing the productivity of bird’s eye chili (Capsicum frutescens L.) cultivation. Although phosphorus is present in the soil, much of it exists in insoluble forms, rendering it inaccessible to plants. This study aimed to assess the efficacy of a locally sourced phosphate-solubilizing microbial (PSM) consortium, formulated into an organic liquid fertilizer (OLF), in promoting the growth of bird’s eye chili. The PSM consortium, composed of Bacillus sp., Pseudomonas sp., and Aspergillus sp. isolates obtained from local agricultural soils, was incorporated into an OLF derived from liquid organic waste. A completely randomized design (CRD) was employed with five treatment groups: a non-fertilized control, OLF without PSM, and three concentrations of PSM-enriched OLF. Growth parameters including plant height, leaf number, and biomass weight were measured at 40 days after planting. Results revealed that application of the PSM-enriched OLF significantly enhanced plant growth compared to both the control and the non-inoculated OLF treatment (p < 0.05). The most effective treatment was a 20% concentration of PSM-enriched OLF, which increased plant height by 32.5%, leaf number by 28.4%, and fresh biomass weight by 35.1% relative to the control. These findings underscore the potential of combining organic liquid fertilizer with indigenous phosphate-solubilizing microbes to improve phosphorus bioavailability and support crop growth. This biofertilizer formulation represents a promising, environmentally sustainable alternative for enhancing soil fertility and promoting sustainable agricultural practices.

References

Fitriatin, B. N., Turmuktini, T., & Yuniarti, A. (2010). Aplikasi konsorsium bakteri penambat nitrogen dan pelarut fosfat untuk meningkatkan pertumbuhan dan hasil tanaman padi. Jurnal Tanah dan Sumberdaya Lahan, 6(1), 1–8.

Glick, B. R. (1995). The enhancement of plant growth by free-living bacteria. Canadian Journal of Microbiology, 41(2), 109–117.

Husna, M., Sugiyanta, S., & Pratiwi, E. (2019). Kemampuan konsorsium Bacillus pada pupuk hayati dalam memfiksasi N₂, melarutkan fosfat dan mensintesis fitohormon indole 3-acetic acid. Jurnal Tanah dan Iklim, 43(2), 113–121.

Kalay, M., Jatnika, D., & Setiawan, A. (2020). Peranan mikroba pelarut fosfat terhadap pertumbuhan tanaman. Unnes Journal of Life Science, 9(1), 1–10.

Pane, R. D. P., Ginting, E. N., & Hidayat, F. (2022). Mikroba pelarut fosfat dan potensinya dalam meningkatkan pertumbuhan tanaman. WARTA Pusat Penelitian Kelapa Sawit, 27(1), 1–10.

Permatasari, A. D., & Nurhidayati, T. (2014). Pengaruh inokulan bakteri penambat nitrogen, bakteri pelarut fosfat dan mikoriza asal desa Condro, Lumajang, Jawa Timur terhadap pertumbuhan tanaman cabai rawit. Jurnal Sains dan Seni Pomits, 3(2), 44–48.

Rao, N. S. S. (1982). Mikrobiologi tanah. Jakarta: Universitas Indonesia Press.

Rodriguez, H., & Fraga, R. (1999). Phosphate solubilizing bacteria and their role in plant growth promotion. Biotechnology Advances, 17(4–5), 319–339.

Rohmah, A. E., & Suryani, T. B. S. (2016). Aplikasi pupuk hayati pelarut fosfat dalam upaya peningkatan pertumbuhan dan hasil tanaman kedelai. Jurnal Agroplasma, 8(2), 46–52.

Subba-Rao, N. S. (1994). Soil microorganisms and plant growth (4th ed.). New Delhi: Oxford & IBH Publishing Co.

Whitelaw, M. A. (2000). Growth promotion of plants inoculated with phosphate-solubilizing fungi. Advances in Agronomy, 69, 99–151.

Yuliatiningsih, N. P., Darmayasa, I. B. G., & Defiani, M. R. (2022). Pengaruh formulasi pupuk cair berbasis limbah organik dan penambahan konsorsium mikroba pelarut fosfat terhadap pertumbuhan tanaman cabai rawit (Capsicum frutescens L.). Jurnal Biologi Udayana, 26(1), 29–36.

Yuniati, S., & Sarfuddin. (2019). Pengaruh intensitas penyiraman terhadap pertumbuhan dan produksi tanaman cabai rawit (Capsicum frutescens L.). Jurnal Agriyan, 5(2), 45–52.