Shelf Life of Biofilm Producing PGPR Liquid Inoculants in Different Enriched Media Composition

Authors

  • Rahma Tia Harahap Universitas Padjadjaran Politeknik Pembangunan Pertanian (Polbangtan) Medan, Indonesia
  • Isnaniar Rahmatul Azizah Department of Soil Science, Universitas Padjadjaran, Indonesia
  • Diyan Herdiyantoro Department of Soil Science, Universitas Padjadjaran, Indonesia
  • Mieke Rochimi Setiawati Department of Soil Science, Universitas Padjadjaran, Indonesia
  • Tualar Simarmata Department of Soil Science, Universitas Padjadjaran, Indonesia

DOI:

https://doi.org/10.37637/ab.v6i2.1285

Keywords:

viability of superior isolates rhizobacteria, liquid consortium biofertilizer, selection of carrier formulation

Abstract

Selecting a carrier material compatible with microbes is crucial for ensuring the quality of biofertilizers. This research aimed to identify a carrier material that could sustain the population of inoculants from dryland (including Delftia tsuruhatensis strain D9, Delftia sp. strain MS2As2, and Bacillus sp.) for a specified period. After conducting the study, it was found that a formulation of 3% molasses, 3% glycerol, 1% potassium sorbate, and 1% Tween-20 enriched with 1% nutrient was the most effective carrier material in maintaining the number of live inoculant cells. This formulation was able to sustain the population of inoculants up to the twelfth week, with a total population of 21.60 × 108 CFU.mL-1 with pH value of media is 5.29, and fulfilled the main criteria for biofertilizers.

Author Biography

Rahma Tia Harahap, Universitas Padjadjaran Politeknik Pembangunan Pertanian (Polbangtan) Medan

Soil Science, Agriculture Departemen.

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Published

2023-10-17

How to Cite

Harahap, R. T., Azizah, I. R., Herdiyantoro, D., Setiawati, M. R., & Simarmata, T. (2023). Shelf Life of Biofilm Producing PGPR Liquid Inoculants in Different Enriched Media Composition. Agro Bali : Agricultural Journal, 6(2), 278–285. https://doi.org/10.37637/ab.v6i2.1285

Issue

Vol. 6 No. 2 (2023)

Section

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