The impact of planting array and micro-fertilizers on the yield of oil sunflower ( lakumka ) and its components in the second farming

Subject Areas : crop production

سيما عباس زاده ¹ (دانش آموخته كارشناسي ارشد ، گروه زراعت كشاورزي ، واحد خوي ، دانشگاه آزاد اسلامي، خوي – ايران)
محسن رشدي ² (گروه زراعت كشاورزي، واحد خوي، دانشگاه آزاد اسلامي، خوي – ايران.)

Received: 2014-11-05 Accepted : 2015-01-15 Published : 2014-07-17

Keywords: planting array – sunflower – seed number – oil yield – nitrogen,

Abstract :

To study the impact of planting array and micro-fertilizer on the yield and yield components of oil sunflower, lakumka cultivar in the second farming, an experiment was carried out on the complete random blocks with three replications in Khoy vicinity in 1393. The planting array factor was in three levels of 50×20, 60×16, and 70×14 cm; and the three factors of macro-nitrogen, phosphorus and potassium fertilizers in three recommended levels of 150 and 125 percent. The variance analysis results showed that the effect of planting array on the trait of seed yield and oil yield was meaningful. By the increase of fertilizer consumption by 150 percent, the second yield increased from 1237.7 kg to 1370 kg per hectare, and by the reduction of the space between planting rows from 70 cm to 50 cm, the

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