Agro Bali: Agricultural Journal
Vol 6, No 2 (2023)

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

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



Article Info

Publish Date
17 Oct 2023

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.

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Journal Info

Abbrev

Agro

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

Agro Bali: Agricultural Journal is an information media that contains articles from research, theoretical studies, and scientific writings on agriculture especially agrotechnology i.e.: agronomy, horticulture, plant breeding, soil sciences, plant protection, and other pertinent field related to ...