| Titles |
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English :
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Management of salinity problems at Sahl Eltina- North Sinai
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Arabic :
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ادارة مشاكل الملوحة بسهل الطينة-شمال سيناء
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| Abstract |
A filed experiment was carried out on a sandy loam soil at a newly reclaimed
area of Sahl El-Tina, Galbana Village No.7, North Sinai, Egypt, during a growing
summer season (2009) to study the effect of two techniques for management (Raised
beds practice compared with traditional system Furrow row) of saline soil under different
rates and forms of N-mineral fertilizers on soil chemical properties, growth, yield
and yield component. The applied treatments were two cultural practices (Raised
beds and Furrow rows) as well as three solid N-mineral fertilizer forms (i.e., Urea,
Ammonium Nitrate and Ammonium sulfate which added at rates of 75 and 100% of
the recommended dose (120 kg N fed-1). Maize (Zea mays L., Th. 321 cv.) was undertaken
as plant indicator.
The obtained results indicated that the soil chemicals properties were improved
under Raised beds conditions compared with traditional system (Furrow row),
particularly in the root zone. The pH values were slightly reduced from 8.0 to 7.6 and
7.8. Also the electrical conductivity values (EC) were strongly reduced from 7.3 to 3.4
and 4.2 for Raised beds and Furrow row respectively. More or less similar trend was
obtained for the soluble ions with the height reduction up to more than 50% approximately,
particular for Cl- and Na+ in the maize root zone under Raised beds system.
The role of Raised bed was positive for increase the soil content of available N up to
10.4%, but it was negative on values of available K while decreased up to 12.9% under
the same conditions. On the other hand, the available N and K were increased
relatively under addition of N forms, while, the rats of nitrogen addition was nonsignificant.
The maize plant parameters such as leaves &stalks, grains nutritional
status, grain yields, weight of 100 kernels and crude protein were recorded the best
values with Raised beds planting as compared with the traditional practice (Furrow
row).
In general, NUE (Nitrogen use efficiency) values below 60% include an increased
risk of nitrogen losses and should be avoided in order to protect the environment
at N application rates. Also, these values were increased or closed to level of
balance in–and output approximately at low N application rates (90 kg.fed-1) under
Raised beds practice technology compared with the traditional system (Furrow row),
and the best values for NUE were 74.7 % when the ammonium sulfate addition compared
with other N forms Thus, the addition rate of N recommended (120 kg.fed-1) for
maize production dose not acceptable to saline studied soil
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| URL |
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| Publication year |
2011
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| Pages |
1099 - 1114
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| Organization Name |
Soil, Water and Environment Research Institute (SWERI)
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| City |
المنصورة
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| serial title |
J.Soil Sci. and Agric. Eng., Mansoura Univ
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| ISSN |
1110-0346
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| Author(s) from ARC |
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| Agris Categories |
Soil erosion, conservation and reclamationSoil fertilitySoil science and management
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AGROVOC
TERMS |
Maize.
Management.
Saline soils.
Soaking.
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| Proposed Agrovoc |
N-mineral;
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| Publication Type |
Journal
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