Ability of potassium-solubilissing microbes to solubilise feldspar and their effects on sorghum growth


Citation

Pratama D., . and Anas I., . and Suwarno, . Ability of potassium-solubilissing microbes to solubilise feldspar and their effects on sorghum growth. pp. 163-175. ISSN 1394-7990

Abstract

Potassium-solubilising microbes (KSM) are microbes that are able to solubilise different kinds of potassium compounds and make their potassium ions available to plant growth. This study undertook to: (1) isolate KSM from soil samples (2) evaluate their ability to solubilise not-easily soluble potassium sources and (3) evaluate the effect of selected KSM on the growth of sorghum. KSM were isolated from soil samples taken from agricultural land ex-tin mining land and ex-gold mining land. KSM isolates were further selected according to (1) pathogenic characteristics (2) a potassium solubility index on solid medium (3) ability of KSM to solubilise not-easily soluble potassium sources in liquid medium and (4) ability of KSM to stimulate sorghum growth. The best selected KSM were characterised by using molecular analysis. Results showed that KSM isolated from ex-mining land have better ability to solubilise feldspar than KSM from agricultural land. KSB2 and KSB6 isolates have the best ability to stimulate sorghum growth. KSB2 has 97.8 similarity with Achromobacter xylosoxidans and KSB6 has 99 similarity with Burkholderia cepacia.


Download File

Full text available from:

Abstract

Potassium-solubilising microbes (KSM) are microbes that are able to solubilise different kinds of potassium compounds and make their potassium ions available to plant growth. This study undertook to: (1) isolate KSM from soil samples (2) evaluate their ability to solubilise not-easily soluble potassium sources and (3) evaluate the effect of selected KSM on the growth of sorghum. KSM were isolated from soil samples taken from agricultural land ex-tin mining land and ex-gold mining land. KSM isolates were further selected according to (1) pathogenic characteristics (2) a potassium solubility index on solid medium (3) ability of KSM to solubilise not-easily soluble potassium sources in liquid medium and (4) ability of KSM to stimulate sorghum growth. The best selected KSM were characterised by using molecular analysis. Results showed that KSM isolated from ex-mining land have better ability to solubilise feldspar than KSM from agricultural land. KSB2 and KSB6 isolates have the best ability to stimulate sorghum growth. KSB2 has 97.8 similarity with Achromobacter xylosoxidans and KSB6 has 99 similarity with Burkholderia cepacia.

Additional Metadata

[error in script]
Item Type: Article
AGROVOC Term: Potassium
AGROVOC Term: Solubilizing
AGROVOC Term: Bacteria
AGROVOC Term: Sorghum
AGROVOC Term: Feldspar
AGROVOC Term: Plant growthpromoting rhizobacteria
AGROVOC Term: Soil sampling
AGROVOC Term: Isolation
AGROVOC Term: Pathogens
AGROVOC Term: Hypersensitivity
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:53
URI: http://webagris.upm.edu.my/id/eprint/7767

Actions (login required)

View Item View Item
Agris UPM is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.