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Hammad, S., EL-Hamdi, K., Ghanem, S., Naeem, E. (2006). IMPACT OF RICE STRAW ON AVAILABILITY OF SOME NUTRIENT ELEMENTS IN FLOODED RICE SOILS.. Journal of Soil Sciences and Agricultural Engineering, 31(6), 4007-4015. doi: 10.21608/jssae.2006.204045
S.A. Hammad; K.H. EL-Hamdi; S.A. Ghanem; E.S. Naeem. "IMPACT OF RICE STRAW ON AVAILABILITY OF SOME NUTRIENT ELEMENTS IN FLOODED RICE SOILS.". Journal of Soil Sciences and Agricultural Engineering, 31, 6, 2006, 4007-4015. doi: 10.21608/jssae.2006.204045
Hammad, S., EL-Hamdi, K., Ghanem, S., Naeem, E. (2006). 'IMPACT OF RICE STRAW ON AVAILABILITY OF SOME NUTRIENT ELEMENTS IN FLOODED RICE SOILS.', Journal of Soil Sciences and Agricultural Engineering, 31(6), pp. 4007-4015. doi: 10.21608/jssae.2006.204045
Hammad, S., EL-Hamdi, K., Ghanem, S., Naeem, E. IMPACT OF RICE STRAW ON AVAILABILITY OF SOME NUTRIENT ELEMENTS IN FLOODED RICE SOILS.. Journal of Soil Sciences and Agricultural Engineering, 2006; 31(6): 4007-4015. doi: 10.21608/jssae.2006.204045

IMPACT OF RICE STRAW ON AVAILABILITY OF SOME NUTRIENT ELEMENTS IN FLOODED RICE SOILS.

Article 4, Volume 31, Issue 6, June 2006, Page 4007-4015  XML PDF (2.26 MB)
Document Type: Original Article
DOI: 10.21608/jssae.2006.204045
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Authors
S.A. Hammad1; K.H. EL-Hamdi1; S.A. Ghanem2; E.S. Naeem2
1Soil Sci. Dept. of Agric., Mansoura Univ., Egypt.
2Rice Resarch and training Center Sakha, Kafr EL-Sheikh
Abstract
In a field study , with rice plants, of flooded rice soils whose organic matter
content was 1.5 % ,incorporation of composted rice straw either alone or in
combination with nitrogen fertilizer affected the availability of some nutrients NH4-N,
P, K ,Fe2+,Mn2+and Zn2+ in addition to N03-N concentration. The obtained data
showed that the integration of composted rice straw plus nitrogen fertilizer increased
the availability of NH4-N, P, K ,Fe2+ and Mn2+ but decreased Zn2+ availability and
N03-N concentration. Data of simple correlation coefficient (r) between the
phosphorus availability and zinc availability was positively. The linear regression
coefficient showed that the prediction equation for zinc availability (y) could be
formuled as follows:
Available Zn = - 0.477 + 0.0540 Available P.
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