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POLLUTION EFFECTS OF DATE PALM (Phoenix dactylifera L.) ORCHARDS WHICH SURROUND Al-DOURA REFINERY POLLUTION WITH GASES | ||
| IRAQ JOURNAL OF AGRICULTURE | ||
| Article 1, Volume 14, Issue 6, 2009, Pages 0-0 | ||
| Authors | ||
| A. H. Salman; N. A. Ahmed; Z. T. Balasem; D. A. Al-Safa | ||
| Abstract | ||
| Experiment was conducted in the date palm orchards at Al-Doura refinery,in 2006 to improve some pollutants like lead and sulfate on two cultivars of date palm (Phoenix dactylifera .L) Zahdi and Khastawi in two soil depths to see the effectivness in yield with and availability of nitrogen, phosphorus and potassium in soil as well as the absorption of nitrogen, phosphorus and potassium by plants was studies . Also the experiment carryout on date palm zone far from source of pollution (1,2,3) km, the control trees were chosen far from pollution zone to investigate the pollution with lead and sulfate both in soil and plant parts. The results indicated that, there was significant reduce in yield for both cultivars in relation to decrease with the distance from pollution source, when we compare with two cultivars we find the first yield in (1km) treatment was reduce in Zahdi cultivar(31 kg). But we found the intensive lead and sulfate exist in ahigh range in soil and plant parts which was nearest the source of pollution. So the high curve was raised in the nearest source of pollution in sequence rates (23.51, 9.67, 3.74, 2.9) mg/l for soil, fruit,old pinna and new pinna. In addition the same way was approved in sulfate contact with sequence rate (634.73, 84.68, 47, 22.3) mg/l for soil, fruit, old pinna and new pinna. Also the experiment approved that the soil which was near the source of pollution full of nitrogen, phosphorus and potassium and record the same treatments of the lowest uptake to the same elements, due to the negative effective of pollution upon the plants, but the remote treatments was record ahighest absorption of nutrients elements nitrogen, phosphorus and potassium in plant, with lowest content of the elements in soil, due to absence of negative toxicity effect of pollution zone. | ||
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