Evaluation of bio- chemical fertilizers on agronomical traits and oil percentage in sunflower
Subject Areas : New Finding in AgricultureNoor ali Sajedi 1 , Hmid Madani 2 , Mohamad Mirzakhani 3
1 - دانشگاه آزاد اسلامی، واحد اراک، گروه زراعت و اصلاح نباتات، اراک، ایران
2 - دانشگاه آزاد اسلامی، واحد اراک، گروه زراعت و اصلاح نباتات، اراک، ایران
3 - دانشگاه آزاد اسلامی، واحد فراهان، گروه زراعت و اصلاح نباتات، فراهان، ایران
Keywords: Grain yield, Sunflower, oil percentage, Bi-and chemical fertilizers,
Abstract :
In order to assessment of the effects of dual inoculation of bio-and chemical fertilizers on agronomical traits and oil percentage in sunflower, a field experimentl was carried out as factorial based on complete randomized block design with three replicates in the research station of Islamic Azad University- Arak Branch, Iran in 2011. Experimental factors were Nitroxin in two levels of with and without seed inoculation, Barvar 2 in two levels of with and without seed inoculation N and P fertilizers in four levels of control(without application of fertilizer), 150 kg ha-1 N +75 kg ha-1 P, 100 kg ha-1 N +50 kg ha-1 P, 50 kg ha-1 N +25 kg ha-1 P. Results showed that application of 100 kg ha-1 N +50 kg ha-1 P increased grain yield and oil percentage by 11 and 2.8% as compared with control respectively. Seed inoculation with biofertilizers increased grain yield by 18% as compared with control. Maximum of oil percentage equal 46.38% was obtained from interaction effects 100 kg ha-1 N +50 kg ha-1 P and seed inoculation with Nitroxin. the highest grain yield equal 4599.71 kg ha-1 was obtained from 150 kg ha-1 N +75 kg ha-1 P along with biofertilizers, that with treatment of 100 kg ha-1 N +50 kg ha-1 P and seed inoculation of Nitroxin with grain yield equal 4371.10 kg ha-1 was not significant. In general seems that application of 100 kg ha-1 N +50 kg ha-1 P along with Nitroxin and Barvar 2 can obtain acceptable yield.
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