Investigate planting date plant density and different level of N fertilizer on the yield and oil percent of spring safflower

Subject Areas : New Finding in Agriculture

hasan Tahmasbizadeh ¹ , hamid madani ² , gholamreza Naderi Boroujerdi ³

1 - دانشگاه آزاد اسلامی، واحد اراک، باشگاه پژوهشگران جوان، اراک، ایران.
2 - دانشگاه آزاد اسلامی، واحد اراک، دانشیار گروه زراعت و اصلاح نباتات، اراک، ایران
3 - دانشگاه آزاد اسلامی، واحد اراک، گروه زراعت و اصلاح نباتات، اراک، ایران.

Received: 2015-12-02 Accepted : 2015-12-02 Published : 2010-04-21

Keywords: yield, Plant density, Safflower, Nitrogen Fertilizer, Oil yield, plant dating,

Abstract :

       This research was conducted to determiner planting date planting density and different level N of fertilizer on the yield and oil percent of spring safflower on Esfahan variety exact10th at 2010 in Arak region. The experiment was performed in factorial split plat based on RCBD with 4replications and 48 plot. treatment were selected as two planting dates (10th of May and 10th of July) and different level of N(46 ,92 and 138 kg/ha) and two plant densities (400000 and 800000 plant/ha) hence 800000 plant per hectare executed in double row planting .result showed that the highest yield was related to 10th  of may planting date with 138 kg/ha N  fertilizer and plant density of 800000 per hectare by 3101 kg/ha. So highest oil yield was related to 10th of may planting date with 138 kg/ha N fertilizer and plant density of 800000 per hectare by 995.85 kg/ha .lowest oil yield was related to 10th of July planting date with 138 kg/ha N fertilizer and plant density of 400000 per hectare by  432 .there for plant density has in crease Effect of oil yield .so according shown result 800000 plant per hectare as comparison 400000 plant per hectare has direct effect in oil yield spring safflower.