the effects of biological and chemical fertilizers to use salicylic acid on morphological characteristics and yield of corn

in order to examine the effects of biological and chemical fertilizers with the use of salicylic acid on the agronomic characteristics of corn as a factorial experiment in randomized complete block design with three replications at the agricultural research station in 2011 was boroujerd. factors examined included three levels of phosphorus fertilizer (0, 100 and 150 kg ha), two levels of biological fertilizer (mycorrhizal fungi) (seed inoculation and seed inoculation) and two levels of salicylic acid (0/5 and 1 mm), respectively. the results showed that phosphorus fertilizer and mycorrhizal significant effect on plant height, stem diameter, ear length, ear diameter, grain yield and biological yield, respectively, with the application of 150 kg p ha grain yield of 9006 kg was found that 48% more the treatment of non-usage. in the case of seed inoculation with mycorrhiza on the amount of 8412 kg per hectare, respectively, which was 24% higher than the treatment of non-inoculated seeds. salicylic acid has a significant effect on plant height, stem diameter, ear length, ear diameter, grain yield and biological yield and harvest index. the application of 1 mm salicylic acid yield of 8316 kg per hectare, respectively, which was 24% higher than the treatment of non-use. phosphorus and mycorrhiza interaction on grain yield and biological yield was significant. salicylic acid and phosphorus interaction and effect on yield only three treatments was significant