Abstract
Two field experiments were carried out at the Experimental Station of National Research Centre at Shalakan during the 1998 and 1999 growth seasons to study the response of cowpea plant to different levels of chemical and bio-nitrogen fertilizer . Every experiment included 9 treatments , which were the simple combination between 3 chemical nitrogen fertilizer , i.e. 0 , 50 and 100 kg/fed. and 3 levels bio-nitrogen fertilizer , i.e. 0 , 25 and 50 g/kg seeds . The important results could be summarized as follows : chemical nitrogen fertilization at rate of 100 kg as ammonium sulphate gave the best growth characters of plant . The suitable economic level of biogen is (a bio-fertilizer contain a large number of fixation bacttaria) for cowpea plant is 50 g/kg seeds , where the best growth characters were gained . The heaviest total dry weight of whole plant and its different parts were obtained by adding nitrogen at rate of 100 kg/fed. in the form of ammonium sulphate with treating cowpea seeds by biogen at level 50 g/kg . seeds . The heaviest yield of dry seeds resulted from cowpea plants which received nitrogen at rate of 100 kg/fed. as ammonium sulphate . The heaviest total dry seeds yield as kg/fed. with best quality were resulted with adding 100 kg/fed. of chemical nitrogen fertilizer and with treating cowpea seeds before sowing by biogen at 50 g/kg of seeds .
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Claims 5
Claim · model-written summary
Chemical nitrogen at 100 kg as ammonium sulphate gave the best cowpea growth traits.
- Taxon
- cowpea plant
Vigna unguiculatat0 - Treatment
- chemical nitrogen fertilization at rate of 100 kg as ammonium sulphatee0
- Outcome
- growth characters of plante0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“chemical nitrogen fertilization at rate of 100 kg as ammonium sulphate gave the best growth characters of plant”
t0“cowpea plant”
Claim · model-written summary
Biogen at 50 g/kg seeds gave the best cowpea growth traits.
- Taxon
- cowpea plant
Vigna unguiculatae0 - Treatment
- biogene0
- Outcome
- growth characterse0
- Direction
- beste0
- Value
- 50 g/kg seedse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“biogen is (a bio-fertilizer contain a large number of fixation bacttaria) for cowpea plant is 50 g/kg seeds , where the best growth characters were gained”
Claim · model-written summary
Combined ammonium sulphate and biogen produced the heaviest whole plant and plant part dry weight.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- adding nitrogen at rate of 100 kg/fed. in the form of ammonium sulphate with treating cowpea seeds by biogen at level 50 g/kge0
- Outcome
- total dry weight of whole plant and its different partse0
- Direction
- heavieste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The heaviest total dry weight of whole plant and its different parts were obtained by adding nitrogen at rate of 100 kg/fed. in the form of ammonium sulphate with treating cowpea seeds by biogen at level 50 g/kg”
Claim · model-written summary
Ammonium sulphate at 100 kg/fed. produced the heaviest dry seed yield.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- nitrogen at rate of 100 kg/fed. as ammonium sulphatee0
- Outcome
- yield of dry seedse0
- Direction
- heavieste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The heaviest yield of dry seeds resulted from cowpea plants which received nitrogen at rate of 100 kg/fed. as ammonium sulphate”
Claim · model-written summary
Combined chemical nitrogen and biogen gave the heaviest total dry seed yield and best quality.
- Taxon
- cowpea plant
Vigna unguiculatat0 - Treatment
- adding 100 kg/fed. of chemical nitrogen fertilizer and with treating cowpea seeds before sowing by biogen at 50 g/kg of seedse0
- Outcome
- total dry seeds yield as kg/fed. with best qualitye0
- Direction
- heavieste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The heaviest total dry seeds yield as kg/fed. with best quality were resulted with adding 100 kg/fed. of chemical nitrogen fertilizer and with treating cowpea seeds before sowing by biogen at 50 g/kg of seeds”
t0“cowpea plant”
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