THE IMPACT OF PHOSPHORUS FERTILIZER SOURCES AND RATES ON CANOLA PLANT (Brassica napus L.) GROWN IN CALCAREOUS SOIL | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 16, Volume 34, Issue 5, May 2009, Page 5705-5714 PDF (779.89 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2009.93125 | ||||
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| Authors | ||||
| E. E. A. M. Osman; F. A. F. Zahran; A. I. E. El-Shafie | ||||
| Soil, Water and Environ. Res. Inst., Agric. Res. Center (ARC), Giza, Egypt. | ||||
| Abstract | ||||
| Two field experiments were carried out at El- Areish Agricultural Research Station, North Sinai Governorate during the two winter growing seasons of 2005/2006 and 2006/2007 to study the effect of canola varieties (Serw 4 and Bactol) with superphosphate and rock phosphate at rates (15.5 and 31 kg P2O5 /fed.) on some yield components, seed yield and chemical composition of canola plant grown in calcareous soil. Results can be summarized as follows: 1- Variety Serw 4 was significantly higher than Bactol one for plant height only in the first season. Also, the higher rate of P fertilizer in form of superphosphate was better than other treatments in the first season. 2- Variety Serw 4 gave the highest significant value of seed weight/ plant (g) and oil yield (kg/fed.) in the first season, and oil yield (kg/fed.) in the second season compared to Bactol one. In addition, higher rate of P fertilizer for both P sources was better than lower one for seed weight/ plant (g), seed yield (kg/fed.) and protein % in the first season as well as seed yield (kg/fed.), oil yield (kg/fed.) and protein % in the second season. Variety Serw 4 received any of both P sources at higher level produced significantly better yield and its components than those recorded by other treatments. 3- The treatment of superphosphate and rock phosphate at higher rate gave a significant increase in N- uptake of canola plants in comparison with the other fertilization treatments in both seasons. 4- N- Uptake of variety Serw 4 fertilized with superphosphate at a rate of 31 kg P2O5/fed. was significantly higher than those obtained by others treatments. | ||||
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