Phosphorus Solubilizing Microorganisms in the Rhizosphere of Local Rice Varieties Grown without Fertilizer on Acid Sulfate Soils

Properties and Management of Acid Sulfate Soils in Southeast Asia for Sustainable Cultivation of Rice, Oil Palm, and Cocoa

“…A study was conducted using acid sulfate soils of the Kelantan Plains, Malaysia, to prove the occurrence of the bacteria. These results were consistent with those found by Purnomo et al (2005). The low soil pH with depth is consistent with the presence of high exchangeable Al.…”

Comparative study of endophytic and endophytic diazotrophic bacterial communities across rice landraces grown in the highlands of northern Thailand

“…In supplementary farming conditions, the rice landraces usually produce lower yields compared to the modern high-yield varieties but their products are still sufficient for household consumption. Although the majority of locally cultivated rice landraces are cultivated by traditional or natural rice farming without any chemical inputs and pest controls, they have been able to produce reasonable yields year by year (Oupkaew et al 2011;Parzies et al 2004;Purnomo et al 2005). This traditional cultivation of the rice landraces requires both specific farming practices and unique local conditions (Chakhonkaen et al 2012;Oupkaew et al 2011;Saito et al 2006).…”

Compost amendment enhances population and composition of phosphate solubilizing bacteria and improves phosphorus availability in granitic regosols

“…Burkholderia is one of the genera that has many species reported to be able to solubilize inorganic phosphate compounds such as tricalcium phosphate or rock phosphate (Rodriguez and Fraga 1999). Purnomo et al (2005) reported that a Burkholderia spp. is a common P-solubilising bacterial species in the rhizosphere of different rice varieties.…”