ارزیابی تأثیر ویژگی‌های فیزیکی و شیمیایی خاک بر عملکرد گندم دیم

Various factors such as soil properties influence on wheat yield under rainfed condition. Therefore Information about affecting soil properties on yield is really important. The present study was conducted to investigate the effect of soil properties on wheat yield in some dry-farming soils in a Taham region, North West of Zanjan. Correlation tabled showed that some physical factors such as soil aggeregate stability and available water significantly affected whaet yield. Also, wheat yield was affected by chemical properties including electrical conductivity, cation exchangeable capacity, organic matter, calcium carbonate, nitrogen and potassium. Electrical conductivity and calcium carbonate correlated nagatively to wheat grain yield and increasing the properties values decreased yield. Therefore any practices that improve soil physicochemical properties may induce to increasing wheat yield in drylands.