Abstract
Two field experiments were conducted at El-Rod village at Sahl El-Houssinia, El-Sharkia governorate, (32°15' 00" N 30°50' 00" E), Egypt. The study investigated evaluations of different nitrogen fertilizers sources (calcium nitrate, ammonium sulphate and urea fertilizers) and rates (0, 47.6, 71.4 and 107 kg N/ha) alone or combined with bio-fertilizer (using bio-fertilization with Rhiobium radiobacter sp strain on improve nutrients available and contents in cowpea productivity and quality in newly reclaimed saline soil conditions during two summer seasons 2017 and 2018. The studies treatments were disturbed among the experimental pelts in split design with six replicates. The obtained results cleared that the used ammonium sulphate fertilizer was increase effect with increasing rate in EC, pH, and available N, P, K , Fe, Mn and Zn content in soil. Moreover data recorded the applied 71.4 kg N /ha was increase of plant height, weight of 100 seeds, weight of pods (g/plant) , weight of seeds (g)/plant and seeds yield (ton ha-1) have been affected by inoculation with bio-fertilizer combined with nitrogen sources fertilizers and different rates than other treatments. The highest values of N, P , K, Fe, Mn and Zn concentrations and uptake in seeds treated with ammonium sulphate at rate 71.4 kg N/ha than other treatments. The decrease of the soil salinity to increased content of cowpea plant of chlorophyll and protein, but increased salinity of the soil led to increase the content of the plant of proline. The application of ammonium sulphat at 30 kg N/fed combined with bio-fertilizer was improve soil properties and cowpea productivity and quality under saline soils conditions.
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Claims 6
Claim · model-written summary
Increasing ammonium sulphate rate increased soil EC, pH and available nutrients.
- Taxon
- Cowpea
Vigna unguiculatat0 - Treatment
- ammonium sulphate fertilizere0
- Outcome
- EC, pH, and available N, P, K , Fe, Mn and Zn content in soile0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the used ammonium sulphate fertilizer was increase effect with increasing rate in EC, pH, and available N, P, K , Fe, Mn and Zn content in soil.”
t0“Cowpea”
Claim · model-written summary
Nitrogen at 71.4 kg N/ha with biofertilizer increased plant height, seed and pod weights, and seed yield relative to other treatments.
- Taxon
- Cowpea
Vigna unguiculatat0 - Treatment
- inoculation with bio-fertilizer combined with nitrogen sources fertilizers and different ratese0
- Interactor
- Rhiobium radiobacter sp straine1symbiont
- Outcome
- plant height, weight of 100 seeds, weight of pods (g/plant) , weight of seeds (g)/plant and seeds yield (ton ha-1)e0
- Direction
- increasee0
- Value
- 71.4 kg N /hae0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the applied 71.4 kg N /ha was increase of plant height, weight of 100 seeds, weight of pods (g/plant) , weight of seeds (g)/plant and seeds yield (ton ha-1) have been affected by inoculation with bio-fertilizer combined with nitrogen sources fertilizers and different rates than other treatments.”
e1“bio-fertilization with Rhiobium radiobacter sp strain”
t0“Cowpea”
Claim · model-written summary
Ammonium sulphate at 71.4 kg N/ha produced the highest seed nutrient concentrations and uptake.
- Taxon
- Cowpea
Vigna unguiculatat0 - Treatment
- ammonium sulphate at rate 71.4 kg N/hae0
- Outcome
- N, P , K, Fe, Mn and Zn concentrations and uptake in seedse0
- Direction
- higheste0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest values of N, P , K, Fe, Mn and Zn concentrations and uptake in seeds treated with ammonium sulphate at rate 71.4 kg N/ha than other treatments.”
t0“Cowpea”
Claim · model-written summary
Lower soil salinity was associated with higher chlorophyll and protein content.
- Taxon
- cowpea
Vigna unguiculatae0 - Outcome
- content of cowpea plant of chlorophyll and proteine0
- Direction
- increasede0
- Qualifier
- decrease of the soil salinitye0
- Comparator
- soil salinitye0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The decrease of the soil salinity to increased content of cowpea plant of chlorophyll and protein”
t0“Cowpea”
Claim · model-written summary
Higher soil salinity was associated with increased plant proline content.
- Taxon
- Cowpea
Vigna unguiculatat0 - Outcome
- content of the plant of prolinee0
- Direction
- increasee0
- Comparator
- salinity of the soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“increased salinity of the soil led to increase the content of the plant of proline”
t0“Cowpea”
Claim · model-written summary
The authors conclude that ammonium sulphate with biofertilizer improved soil properties and cowpea productivity and quality.
- Taxon
- Cowpea
Vigna unguiculatat0 - Treatment
- ammonium sulphat at 30 kg N/fed combined with bio-fertilizere0
- Interactor
- Rhiobium radiobacter sp straine1symbiont
- Outcome
- soil properties and cowpea productivity and qualitye0
- Direction
- improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The application of ammonium sulphat at 30 kg N/fed combined with bio-fertilizer was improve soil properties and cowpea productivity and quality under saline soils conditions.”
e1“bio-fertilization with Rhiobium radiobacter sp strain”
t0“Cowpea”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.