Effect of Nitrogen and Potassium Fertilizer Application at Physiological Growth Stages on Yield of Two Wheat Varieties Grown in the North Middle
S. E-D. A., F., RizK, M., Gazia, E., Amer, M. (2011). Effect of Nitrogen and Potassium Fertilizer Application at Physiological Growth Stages on Yield of Two Wheat Varieties Grown in the North Middle. EKB Journal Management System, 32(JANUARY- MARCH), 40-50. doi: 10.21608/asejaiqjsae.2011.2135
Faizy S. E-D. A.; M. M. RizK; E.A.E Gazia; M. M.A. Amer. "Effect of Nitrogen and Potassium Fertilizer Application at Physiological Growth Stages on Yield of Two Wheat Varieties Grown in the North Middle". EKB Journal Management System, 32, JANUARY- MARCH, 2011, 40-50. doi: 10.21608/asejaiqjsae.2011.2135
S. E-D. A., F., RizK, M., Gazia, E., Amer, M. (2011). 'Effect of Nitrogen and Potassium Fertilizer Application at Physiological Growth Stages on Yield of Two Wheat Varieties Grown in the North Middle', EKB Journal Management System, 32(JANUARY- MARCH), pp. 40-50. doi: 10.21608/asejaiqjsae.2011.2135
S. E-D. A., F., RizK, M., Gazia, E., Amer, M. Effect of Nitrogen and Potassium Fertilizer Application at Physiological Growth Stages on Yield of Two Wheat Varieties Grown in the North Middle. EKB Journal Management System, 2011; 32(JANUARY- MARCH): 40-50. doi: 10.21608/asejaiqjsae.2011.2135

Effect of Nitrogen and Potassium Fertilizer Application at Physiological Growth Stages on Yield of Two Wheat Varieties Grown in the North Middle

Alexandria Science Exchange Journal
Article 5, Volume 32, JANUARY- MARCH - Serial Number 1, March 2011, Page 40-50  XML PDF (493.78 K)
Document Type: Original Article
DOI: 10.21608/asejaiqjsae.2011.2135
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Authors
Faizy S. E-D. A.1; M. M. RizK1; E.A.E Gazia2; M. M.A. Amer2
1Soil Dept. Fac. of Agric., Kafr EL-Sheikh Univ
2Soils, Water and Environment Research Institute, A R C.
Abstract
Field experiment was carried out at the experimental farm, faculty of Agric., Kafr El Sheikh Univ. during the two successive seasons (2003 and 2004).The objective of the study was to study effect the of N application at tillering stage on wheat (Triticum aestivum) yield, its components and harvest index (HI), as well as the effect of K. The obtained results could be summarized as follows: The grain and straw yields of the two studied wheat varieties was highly significantly increased with increasing N level up to 120 kg N/fed. (fed=4200 m2) The highest mean values were 21.91and 30.0 ardab grain/fed.,(ardab=150 kg) and 5.19 and 6.0 tons straw/fed. for Giza 168 and Sids7, respectively. The number of spikes/m2, number of grains per spike and 1000–grain weight were highly significantly increased with increasing N and K levels. The highest mean value over the two seasons (435 and 300), (83 and 103.5) and (40.45 and 62.9 g) for Giza 168 and Sids7 respectively. N application at tillering stage in the presence of K have a high significant effect on grain and straw yield, number of spikes/m2, number of grains per spike and 1000–grain weight of the two wheat varieties. The highest mean values were recorded at D6. Hence, application of K lead to increasing N U E.The maximum 1000-grains weight was 54 g could be obtained at about 36 kg N/fed. without K addition, while, in the presence of K it was 59 g and could be obtained at 29 kg N/fed. The highest mean values of HI were 41.21 and 42.26% for Giza 168 and Sids7 respectively. K increased the harvest index and were1.88% and 2.31% for Giza 168 and Sids7. It is recommended to apply 120 kg N/fed. as 24, 60, 18 and 18 at planting, tillering, booting and milking stages, respectively as well as applications of 50 kg K2O/fed. and 22 kg P2O5/fed. Before planting. to obtain the maximum values of grain and straw yield for the studied wheat varieties Giza 168 and Sids7 grown under North Middle Delta conditions.
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