Alromian, F., EI- Fakhrani, Y. (2002). EFFECT OF SULPHUR ON THE UTILIZATION EFFICIENCY OF NITROGEN BY WHEAT ON SANDY SOILS OF SAUDI ARABIA. Journal of Soil Sciences and Agricultural Engineering, 27(9), 6477-6491. doi: 10.21608/jssae.2002.255362
F. M. Alromian; Y. M. EI- Fakhrani. "EFFECT OF SULPHUR ON THE UTILIZATION EFFICIENCY OF NITROGEN BY WHEAT ON SANDY SOILS OF SAUDI ARABIA". Journal of Soil Sciences and Agricultural Engineering, 27, 9, 2002, 6477-6491. doi: 10.21608/jssae.2002.255362
Alromian, F., EI- Fakhrani, Y. (2002). 'EFFECT OF SULPHUR ON THE UTILIZATION EFFICIENCY OF NITROGEN BY WHEAT ON SANDY SOILS OF SAUDI ARABIA', Journal of Soil Sciences and Agricultural Engineering, 27(9), pp. 6477-6491. doi: 10.21608/jssae.2002.255362
Alromian, F., EI- Fakhrani, Y. EFFECT OF SULPHUR ON THE UTILIZATION EFFICIENCY OF NITROGEN BY WHEAT ON SANDY SOILS OF SAUDI ARABIA. Journal of Soil Sciences and Agricultural Engineering, 2002; 27(9): 6477-6491. doi: 10.21608/jssae.2002.255362
EFFECT OF SULPHUR ON THE UTILIZATION EFFICIENCY OF NITROGEN BY WHEAT ON SANDY SOILS OF SAUDI ARABIA
Department of 5011 and Water, COllege af Agriculture and Veterinary Medicine, King Saud Unlverlsty. AI-Qasslm Branch, Suraydah. P. O. Sax 1482, Saudi Arabia.
Abstract
Two field experimenls were conducted during winter seasons of 2000-2001 and 2001- 2002 10 examine the effect of eternentat sulphur applied at Ihe rales of 0, 500 and 1000 Kg na' on the utilization efficiency of nitrogen fertilizer as urea at the rates of 0, 100, 200 and 300 Kg N ha·1 by wheat grown on sandy soils using sprinkler irrigation system under the arid conditions in the central region of Saudi Arabia (AJ- Oasstrn region).
The oblained results indicated that tho straw and grain yields of wheat were significantly increased as the nitrogen dose Increased and more pronounced increases were producd with applying nitrogen wilh sulphur as compared to the application of nitrogen alone. The optimum economic level of nitrogen with sulphur at the rate of 500 or 1000 Kg na' was 200 Kg N ha·1• The protein content or wheat grains increased signlflcanlly with increasing nitrogen and sulphur application rates when they were applied either alone or in combination and it was significantly correlated with the nitrogen conrent In wheal grains. N , P and K contents of Wheat straw and grains were significantly increased with increasing nitrogen and sulphur application rates when they were applied either alone or in combination,
Soil salinity (ECe) was inaeased si9nificanUy due to the applicallon of 300 Kg Nand 1000 Kg sulphur ha'. while soil pH was Significantly decreased. Available soil Nand P increased significantly with increasing nitrogen and sulphur application rates during the two seasons, whJle Available soil K was significantly increased with increasing sulphur levels in the first season arid with nitrogen at the rates of 200 and 300 Kg N ha' in the second season, II can be concluded that application of sulphur has apparently promoted the utilization efficienc.y of nitrogen fertilic:er as urea 'In sandy soils under arid environment.
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