Abstract
A field experiment was conducted in two successive seasons 2001/2002 and 2002/2003 in a sandy calcareous soil at west Samalout, EL-Minia Governorate, to study the effect of applying organic and inorganic nitrogen fertilizers as chicken manure (18.5% N and 30% water content ), ammonium sulfate ( 20.6% N) and their combination on growth parameters (plant height , bulb diameter , total fresh and dry weight of onion bulb after 100 days of transplanting ), bulb total yield of onion (Allium cepa L) and its N, P and K content . The two single sources of nitrogen fertilizer and their combination were application at five levels that are equal of nitrogen value . 1- Chicken manure was applied at levels of 0.0 , 5.0 , 10.0, 15.0 and 20.0m3 / fed ., that equal of 0.0 , 2.0 , 4.0, 6.0 and 8.0 ton / fed., respectively . 2- Ammonium sulfate was applied at levels of 0.0, 37.0 , 74.0 , 111.0 and 148.0 kg N / fed . 3- Their combination at levels of nitrogen value :- 1 ton of chicken manure +18.5 kg N of ammonium sulfate / fed. 2 ton of chicken manure+ 37.0 kg N of ammonium sulfate / fed 3 ton of chicken manure+55.5 kg N of ammonium sulfate/fed. 4 ton of chicken manure+ 74 kg N of ammonium sulfate/ fed. The results indicated that the application of organic , inorganic nitrogen fertilizer and their combination. at different levels significantly increased some growth parameters (plant height, and fresh and dry bulb weight) after 100 days of transplanting. The total yield and average weight of 10 bulbs also significantly increased with applying different levels of chicken manure and N fertilizer compared with control treatment. The application of chicken manure, ammonium sulfate and their combination at different levels significantly increased N, P and K concentration and uptake by onion plants at harvest. Moreover, the increases in the nutrient concentration and uptake by onion due to the application of these sources of nitrogen fertilizers followed the trend of ammonium sulfate + chicken manure > ammonium sulfate alone > chicken manure alone) . Generally the results showed that the addition of 6 to 8 ton of chicken manure with 60 to 70 kg N / fed. as ammonium sulfate recommend to increase the yield of onion and the uptake of nitrogen, phosphorus and potassium by onion
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Claims 5
Claim · model-written summary
Organic and inorganic nitrogen fertilizer significantly increased some onion growth parameters after 100 days of transplanting.
- Taxon
- ONION PLANTS
Allium cepat0 - Treatment
- organic , inorganic nitrogen fertilizere0
- Outcome
- some growth parameters (plant height, and fresh and dry bulb weight)e0
- Direction
- significantly increasede0
- Setting
- west Samalout, EL-Minia Governoratee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“EFFECT OF SOME ORGANIC AND INORGANIC NITROGEN FERTILIZERS ON ONION PLANTS GROWN ON A SANDY CALCAREOUS SOIL .”
e0“The results indicated that the application of organic , inorganic nitrogen fertilizer and their combination. at different levels significantly increased some growth parameters (plant height, and fresh and dry bulb weight) after 100 days of transplanting”
e1“A field experiment was conducted in two successive seasons 2001/2002 and 2002/2003 in a sandy calcareous soil at west Samalout, EL-Minia Governorate”
Claim · model-written summary
Chicken manure and N fertilizer significantly increased onion total yield and average weight of 10 bulbs compared with control.
- Taxon
- ONION PLANTS
Allium cepat0 - Treatment
- chicken manure and N fertilizere0
- Outcome
- total yield and average weight of 10 bulbse0
- Direction
- significantly increasede0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“EFFECT OF SOME ORGANIC AND INORGANIC NITROGEN FERTILIZERS ON ONION PLANTS GROWN ON A SANDY CALCAREOUS SOIL .”
e0“The total yield and average weight of 10 bulbs also significantly increased with applying different levels of chicken manure and N fertilizer compared with control treatment”
Claim · model-written summary
Chicken manure, ammonium sulfate and their combination significantly increased N, P and K concentration and uptake by onion plants at harvest.
- Taxon
- onion plants
Allium cepae0 - Treatment
- chicken manure, ammonium sulfate and their combinatione0
- Outcome
- N, P and K concentration and uptake by onion plantse0
- Direction
- significantly increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“EFFECT OF SOME ORGANIC AND INORGANIC NITROGEN FERTILIZERS ON ONION PLANTS GROWN ON A SANDY CALCAREOUS SOIL .”
e0“The application of chicken manure, ammonium sulfate and their combination at different levels significantly increased N, P and K concentration and uptake by onion plants at harvest”
Claim · model-written summary
Nutrient concentration and uptake by onion followed the trend ammonium sulfate plus chicken manure > ammonium sulfate alone > chicken manure alone.
- Taxon
- onion
Allium cepae0 - Treatment
- ammonium sulfate + chicken manuree0
- Outcome
- nutrient concentration and uptake by onione0
- Direction
- followed the trende0
- Comparator
- ammonium sulfate alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“EFFECT OF SOME ORGANIC AND INORGANIC NITROGEN FERTILIZERS ON ONION PLANTS GROWN ON A SANDY CALCAREOUS SOIL .”
e0“the increases in the nutrient concentration and uptake by onion due to the application of these sources of nitrogen fertilizers followed the trend of ammonium sulfate + chicken manure > ammonium sulfate alone > chicken manure alone”
Claim · model-written summary
The authors recommend 6 to 8 ton chicken manure with 60 to 70 kg N/fed as ammonium sulfate to increase onion yield and N, P and K uptake.
- Taxon
- onion
Allium cepae0 - Treatment
- the addition of 6 to 8 ton of chicken manure with 60 to 70 kg N / fed. as ammonium sulfatee0
- Outcome
- the yield of onion and the uptake of nitrogen, phosphorus and potassium by onione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“EFFECT OF SOME ORGANIC AND INORGANIC NITROGEN FERTILIZERS ON ONION PLANTS GROWN ON A SANDY CALCAREOUS SOIL .”
e0“Generally the results showed that the addition of 6 to 8 ton of chicken manure with 60 to 70 kg N / fed. as ammonium sulfate recommend to increase the yield of onion and the uptake of nitrogen, phosphorus and potassium by onion”
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