نوع مقاله : مقاله پژوهشی
1 دانشجوی سابق کارشناسی ارشد، گروه زراعت و اصلاح نباتات دانشکدۀ کشاورزی، دانشگاه صنعتی شاهرود
2 استادیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه صنعتی شاهرود
3 دانشیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه صنعتی شاهرود
4 دانشیار ، گروه زراعت و اصلاح نباتات دانشکده کشاورزی، دانشگاه صنعتی شاهرود
عنوان مقاله [English]
The experiment was conducted to study the effect of different tillage operations, seed priming and application of mycorrhizal fungi on yield, yield components and some growth characters of corn. For this purpose, a split plot factorial in a randomized complete block design was used with three replications in research farm of Shahrood University of Technology, in 2014. Three levels of tillage, conventional tillage (moldboard, disk and furrower), reduce tillage (disc and furrower) minimum tillage (furrower) as a considered main factor. The combination of pretreatment levels (salicylic acid spraying in 0.1 normal concentration and non-spraying) and levels of mycorrhiza (inoculated and non-inoculated) were treated as subplot factors. Analysis of variance showed a significant triple interaction effect of whole treatments on biological and seed yield. Soil bulk density was significantly affected bydifferent levels of tillage. The interaction effects of tillage and fungal symbiosis was significant for soil respiration, the percentage of colonization and 100 seed weight. The results of mean comparison showed that both biological and seed yield was significantly increased in treatment combining of conventional tillage, seed pretreatment and fungal symbiosis. Moreover, the interaction of conventional tillage and fungal symbiosis caused a significant increase in soil respiration and seed weight. Soil bulk density was also significantly increased by conventional tillage.