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All Journal Agro Bali: Agricultural Journal
Tualar Simarmata
Department of Soil Science, Universitas Padjadjaran, Indonesia
Agriculture, Biological Sciences & Forestry

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Shelf Life of Biofilm Producing PGPR Liquid Inoculants in Different Enriched Media Composition Rahma Tia Harahap; Isnaniar Rahmatul Azizah; Diyan Herdiyantoro; Mieke Rochimi Setiawati; Tualar Simarmata
Agro Bali : Agricultural Journal Vol 6, No 2 (2023)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v6i2.1285

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.
Co-Authors Diyan Herdiyantoro Isnaniar Rahmatul Azizah Mieke Rochimi Setiawati Rahma Tia Harahap