to survey the effects of chemical and biological phosphorus on the yield and essential oil of satureja hortensis l. as an important medicinal plant, factorial experiment was conducted based on randomized complete block design with three replicates at research station of faculty of agriculture, urmia university in 2011. the treatments were chemical phosphorus fertilizer with four levels (0, 50, ...

introduction: soil fertility management is a key factor in achieving sustainable agriculture. use of organic fertilizers is one of the methods that without environmental harmful effects with improvement of chemical and biological conditions increases soil fertility. nitroxin contains a collection of the best strains of nitrogen fixation bacteria of the genus azospirillum and azotobacter. these ...

To survey the effects of chemical and biological phosphorus on the yield and essential oil of Satureja hortensis L. as an important medicinal plant, factorial experiment was conducted based on randomized complete block design with three replicates at Research Station of Faculty of Agriculture, Urmia University in 2011. The treatments were chemical phosphorus fertilizer with four levels (0, 50, ...

canola (brassica napus l.) is one of the most important oil seed crops. in order to evaluate the effects of integrated fertilization (chemical, manure and biofertilizers) on canola (b. napus variety hyola 401) yield and uptake of mineral nutrients in saline soil and water, a field experiment was conducted in randomized complete blocks (rcbd) arrangement with eight treatments in three replicatio...

abstract in order to evaluate the effects of biofertilizers on yield and morphological characters in dragonhead, an experiment based on randomized complete block design with four replications was conducted in 2008. treatments were nitroxin, biological phosphorus, biosulfur, nitroxin+biological phosphorus, biological phosphorus+ biosulfur, nitroxin+ biosulfur, nitroxin+biological phosphorus+ bio...

this research, for lowering the use of chemical fertilizer, was carried out using combinations of biological and chemical fertilizer on bean in rasht region in 2012 growing season. the experiment was conducted based on randomized complete blocks design with 12 treatments and three replications. experimental treatments included: control (no fertilizers and no inoculants), chemical fertilizers (n...

wastewater contains many organic and inorganic contaminants that can cause serious damage to the environment and health of people, therefore, they have to be eliminated before being downloaded into sensitive areas. different methods of wastewater purification have been used for contaminants removal. however, they present some technical and economic limitations. thus, new methods of nutrients re...