A field experiment was carried out at Agricultural Researchs and the Experiments Station in Wasit province during 2019-2020 season. This study aimed to investigate effect of three factors, first being biofertilizer levels (without addition , a combination Bacillus megaterium + Glomus mosseae complet G. mosseae, Azotobacter chroococcum, B. Azospirillum brasilense). second factor vermicompost (wi...

In order to study the influence of compost and biofertilizer on yield and essential oil of dill (Anethum graveolens L.), an experiment was conducted as factorial experiment in the base of randomized complete blocks design with eight treatments and three replications at research field of Agriculture Company of Ran in Firouzkuh of Iran in 2012. The factors were compost in four levels (0,...

The main objective of this study was to determine the effects of biofertilizers on quantity and quality of essential oil of basil essential oil content, geranial, caryophyllene, caryophyllene oxide and methyl chavicol in essential oil. The experiment was carried out as randomized complete blocks design with eight treatments and three replications at research field of Agriculture Company of Ran ...

Soil is an excellent niche of growth of many microorganisms: protozoa, fungi, viruses, and bacteria. Some microorganisms are able to colonize soil surrounding plant roots, the rhizosphere, making them come under the influence of plant roots (Hiltner 1904; Kennedy 2005). These bacteria are named rhizobacteria. Rhizobacteria are rhizosphere competent bacteria able to multiply and colonize plant r...

Rhizosphere microorganisms are a heterogenous group of bacteria, including plant growth promoting bacteria, which can improve extent or quality of plant growth direct and indirect. Generally large array of bacteria, including species of Pseudomonas, Azospirillum, Azotobacter, Klebsiella, Enterobacter, Alcaligenes, Arthrobacter, Burkholderia, Bacillus and Serratia have been reported to enhance p...

Ten Azotobacter cultures were isolated from the maize rhizosphere and their auxin producing ability was measured colourimetrically. The auxin production by three efficient Azotobacter cultures (Z1, Z3, Z4) was also measured in the presence of filter sterilized L-tryptophan (at 10G, 10G and 10G M). Azotobacter culture Z4 gave relatively higher auxin production and was selected for further experi...

Evaluation of microbial loads and physico-chemicals cassava mill effluent simulated soil was carried out using standard microbiological biochemical techniques. This to determine the effect (CME) on rhizosphere loads, physicochemical properties, nitrogenous salt heavy metals. The results showed that CME determinants (pH, Ca, Mg, K) metal determinant (Fe, Zn, Co, Ni, Pb Mn) concentration dependen...