Effect of nanoprosil-1 (lus-1) in combination with vermicompost for production of pseudomonas fluorescens inoculants on the growth and yields of maize

The purpose of this study was to determine capability of bacteria Pseudomonas fluorescence survival on nanoprosil-1, vermicompost, rock phosphate, bentonite and three formulations of them and also, their effect on yield, growth indices and phosphorus uptake in maize. After inoculation of examined carriers with bacteria Pseudomonas fluorescence, inoculants were maintained in 28ْ C for 15 days and then till the end of 180 days in the refrigerator. Bacteria populations were measured at time 180 day through CFU method. Then inoculants were used for greenhouse culture of maize. The experiment was performed through complete randomized block design with five inoculants and two fertilizers treatments in four replicates. After 60 days, some plant growth indices and phosphorous in soil and shoot were determined. The results showed that use of bacteria Pseudomonas fluorescens inoculants based on vermicompost and also the combination of vermicompost and nanoprosile-1 promoted growth indices, soil and plant phosphorus in comparison with control plant significantly (P < 0.05). Based on the results, triple phosphate treatment was relatively the best treatment regarding to phosphorus, but this difference was not significant with vermicompost and combination of vermicompost and nanoprosil-1 treatments (p > 0.05).