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English :
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Towards the more efficient use for wheat response to nutrients under different conditions of soil types in Egypt
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Arabic :
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نحو كفاءة أفضل لإستجابة محصول القمح للمغذيات تحت ظروف أنواع مختلفة من الأراضى فى مصر
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| Abstract |
A wire green-house trial was conducted to evaluate the sole and combined effects of treated Nile alluvial, sandy and calcareous soils with N-fertilizer (50, 75, 100 & 125 kg N fed-1, applied as NH4NO3, 33.5% N), elemental S (0, 100 & 200 kg S fed-1) and Fe (0, 5, 10, 20, 30 & 60 kg Fe fed-1, as either FeSO4-7H2O or Fe-EDDHA) on wheat yield and nutritional status (N, P, S, Fe, Mn & Zn) of grains.
Obtained results indicated that all the applied treatments led to improve all the studied plant parameters, with a significant level for all individual ones and most cases of combined applications. The highest figures were occurred under the Nile alluvial, while the least ones in the calcareous and sandy soils lie between them, which might be in relation to the fertility status and properties of the soil.
Plants grown on the Nile alluvial soil fertilized with 75 kg N fed-1 yielded the greatest grain yield, while those supplied with 100 kg N fed-1 recorded the highest uptake of N, P & S and those received 125 kg N fed-1 gave the peak of Fe, Mn & Zn. However, application of 125 kg N fed-1 to the sandy and calcareous soils produced the highest increase values of grain yield and uptake of all studied nutrients.
Elemental S had highly significant effect on increasing values of all studied plant parameters, where the highest ones were recorded with 100 kg S fed-1 added to the Nile alluvial and 200 kg S fed-1 to the sandy and calcareous soils.
Concerning Fe fertilization, all plant parameters significantly responded to Fe supply and, however, the chelate form being more effective under all treatments. Applied level of 30 kg Fe fed-1 achieved the highest significant increase of grain yield and absorption of N, S & Fe; while the observed increment of P, Mn & Zn uptake was performed by the lowest applied Fe level (5 kg Fe fed-1) thereafter decreased as Fe application rate increased. However, values of all studied plant parameters were sharply dropped by adding the heaviest Fe level (60 kg Fe fed-1). This was true under the three different soils.
The interactions between the applied nutrients (double or triple) manifested a synergistic effects to a great extent for increasing crop yield and improving the nutritional status of grains, depending upon the studied parameter, levels of applied nutrients, source and level of added Fe as well as the used soil type. Worth mentioning, uptake of P, Mn & Zn exhibited antagonistic behaviour with combined Fe treatments as Fe level increased, over 5 kg Fe fed-1. Also, all combinations contained the heaviest Fe level (60 kg Fe fed-1) caused a significant decrease of all studied plant parameters, which may indicate the nutritional imbalance in soil plant system.
It is interesting to note that, there were positive and significant correlations between either grain yield or nutrients uptake and the different applied treatments
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| Publication year |
2003
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| Pages |
212-222
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| Availability location |
Soils, Water and Environment Research Institute, ARC, 9 Cairo Univ. St, Giza, Egypt
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| Availability number |
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| Organization Name |
Soil, Water and Environment Research Institute (SWERI)
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| Country |
Egypt
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| City |
Zagazig
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| Publisher |
Name:
The Egyptian Society of Applied Sciences
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| serial title |
Egyptian Journal of Applied Sciences
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| ISSN |
1110-1571
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| Volume |
18
. 11B
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| Department |
Soil Physics and Chemistry
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| Author(s) from ARC |
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| Agris Categories |
Soil fertility
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AGROVOC
TERMS |
Calcareous soils.
Fertilizers.
Nutrients.
Sandy soils.
Wheats.
Yields.
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| Publication Type |
Journal
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