Abstract Andisol soil is a very strong that binds phosphate nutrients, because most of it bound by allophane clay minerals which can retain P up to 97.8%. Therefore, in the available for plants little found, while total high. Where nutrient one essential nutrients need grow and produce well. The availability Andisols be done giving solubilising microbes providing plants. using bacteria as inocu...

At present, there are numerous examples in which symbiotic nitrogen fixation by rhizobia can totally replace the use of fertilizers legume crops. Over years, has been a great effort research institutions to develop and select rhizobial inoculants adapted for these The process is highly dependent on dynamic exchange signals molecular nutrients between partners. Our focus this review was discuss ...

The arbuscular mycorrhizal (AM) fungi, in concert with other soil dwelling microorganisms such as the so-called “plant growth promoting rhizobacteria”, play a pivotal role for natural soil fertility and stability, hence, for sustainable crop production. Appropriate management of the AM fungal community is crucial, especially in the tropics where the cultivated soils are notoriously fragile and ...

For evaluating N(2) fixation of diazotrophic bacteria, nitrogen-poor liquid media supplemented with at least 0.5% sugar and 0.2% agar are widely used for acetylene reduction assays. In such a soft gel medium, however, many N(2)-fixing soil bacteria generally show only trace acetylene reduction activity. Here, we report that use of a N(2) fixation medium solidified with gellan gum instead of aga...