PRODUCTION EFFICIENCY oF SOME NITROGEN FERTILIZATION and THEIR EFFECT on THE DAMAGE CAUSED BY WILD BIRDS on SUNFLOWER CROP | ||||
| Assiut Journal of Agricultural Sciences | ||||
| Article 7, Volume 43, Issue 6, December 2012, Page 84-104 PDF (698.97 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajas.2012.267349 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| , M. A Youssef1; M. M. A Omar2; H. A.E El-bardisy3 | ||||
| 1Soil and Water Sci. Dept., Fac. Of Agric., Al-Azhar Univ., Assiut Branch | ||||
| 2Agric. Zoology and Nematology Dept. Fac. Of Agric., Al-Azhar Univ. Assiut Branch. | ||||
| 3Agric. Economic Dept, Fac. Of Agric., Al-Azhar Univ., Assiut Branch. | ||||
| Abstract | ||||
| A field experiment was carried out at The Experimental Farm, Faculty of Agriculture, Al-Azhar Univ. Assiut, Egypt in order to study the effect of different nitrogen fertilization (bio, organic and chemical) with different combination on sunflower yield and its oil content as well as the damage caused by wild birds. The fertilization treatments were carried out as follow. The first treatment without any fertilization as control. The second was treated with ammonium nitrate as a chemical fertilizer (CN) with rate of 50 Kg/fed the third treatment was the effective microorganisms (EM) with rate 6 L/fed. as a bio-fertilizer.The fourth treatment was treated with humic acid (HA) with a rate of 4 L/fed + EM (EMH). The fifth area was treated with a rate of 20 m3 fed from the sheep manure (SM) as organic fertilizer. The sixth treatment was a mixed from SM + EM. The last treatment was mixture from SM + EMH. Each treatment was three plots every one was (2 × 4.5m.) and laid out in a randomized block design with three replicates | ||||
| Keywords | ||||
| : Chemical; organic; bio-fertilizer; without fertilizer; loss; birds; technical (productivity) efficiency; Data Envelopes Analysis model (DEA); leaner program; opti-mal treatments and sunflower | ||||
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