Abstract
A GREENHOUSE pot experiment was conducted to study the effect of phosphate solubilizing bacteria (Azospirillum brasilenseAC1 and Bacillus subtilis AC2) in combination with different water resources (River Nile, El-Salam Canal and diluted sea waters, 1:10 ) and soil moisture depletion, SMD, levels (25, 50 and 75% of the soil field capacity, FC) on some soil properties (Soil pH, EC, available P and total bacterial counts) and barley (Hordeum vulgare var. Giza 28) grain yield and NPK uptake. The results indicated that use of diluted sea water for irrigation significantly reduced soil available P as compared to El-Salam canal and Nile waters. It also significantly increased soil pH values compared to Nile water. The results showed also that utilization of A. brasilense strain as inoculant for barley seeds significantly increased soil available P and decreased soil pH values compared to B. subtilis strain. Irrigating barley plants with the different water resources after depletion of 50% from soil FC significantly increased available P and decreased pH value as compared to 25 and 75% SMD levels. Soil salinity was found to be significantly decreased by irrigating the plants after SMD of 50 and 75% compared to 25%. The highest soil available P and EC were obtained with the treatments Nile water + A. brasilense + 50% SMD and diluted sea water + B. subtilis + 25% SMD level, respectively. On the other hand, the maximum pH value was recorded in the treatment El-Salam canal water + B. subtilis + 25% SMD level. Counts of total bacteria in the rhizospheric soil of barley increased with increasing growth period reaching their highest after 90 days from sowing date. After that, the counts markedly decreased reaching their lowest figures after 120 days. However, total rhizospheric bacterial counts decreased with increasing SMD level from 25 to 75%. Utilization of diluted sea water for irrigating barley plants significantly decreased grain yield and NPK uptake as compared to the Nile water. The higher the salinity of irrigation water, the lower were the values of grain yield and K uptake. Inoculating barley seedswith A. brasilense AC1 significantly increased barley grain N uptake compared to B. subtilis AC2. Grain yield and NPK uptake were found to be significantly reduced with increasing level of SMD from 25% to 75% FC. The highest grain yield and N uptake values were obtained with the treatment El-Salam canal water + A. brasilense AC1 + 25% SMD level. On the other hand, the highest grain P and K uptake were recorded under the treatments Nile water + A. brasilense AC1 + 25% SMD level and Nile water + B. subtilis AC2 + 25% SMD level, respectively.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 20
Claim · model-written summary
Diluted sea water irrigation significantly reduced soil available P compared with El-Salam canal and Nile waters.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaret0 - Treatment
- diluted sea water for irrigatione1
- Outcome
- soil available Pe1
- Direction
- reducede1
- Comparator
- El-Salam canal and Nile waterse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Barley under Water Stress”
e1“use of diluted sea water for irrigation significantly reduced soil available P as compared to El-Salam canal and Nile waters”
Claim · model-written summary
Diluted sea water irrigation significantly increased soil pH compared with Nile water.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- diluted sea watere1
- Outcome
- soil pH valuese2
- Direction
- increasede2
- Comparator
- Nile watere2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e1“use of diluted sea water for irrigation significantly reduced soil available P as compared to El-Salam canal and Nile waters”
e2“It also significantly increased soil pH values compared to Nile water”
Claim · model-written summary
A. brasilense inoculation significantly increased soil available P compared with B. subtilis.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- utilization of A. brasilense strain as inoculant for barley seedse3
- Interactor
- A. brasilense
Azospirillum brasilensee3symbiont - Second interactor
- B. subtilis
Bacillus subtilise3symbiont - Outcome
- soil available Pe3
- Direction
- increasede3
- Comparator
- B. subtilis straine3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e3“utilization of A. brasilense strain as inoculant for barley seeds significantly increased soil available P and decreased soil pH values compared to B. subtilis strain”
Claim · model-written summary
A. brasilense inoculation significantly decreased soil pH compared with B. subtilis.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- utilization of A. brasilense strain as inoculant for barley seedse3
- Interactor
- A. brasilenseAzospirillum brasilensee3symbiont
- Second interactor
- B. subtilisBacillus subtilise3symbiont
- Outcome
- soil pH valuese3
- Direction
- decreasede3
- Comparator
- B. subtilis straine3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e3“utilization of A. brasilense strain as inoculant for barley seeds significantly increased soil available P and decreased soil pH values compared to B. subtilis strain”
Claim · model-written summary
Irrigating after 50% soil moisture depletion significantly increased available P compared with 25 and 75% SMD levels.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- after depletion of 50% from soil FCe4
- Outcome
- available Pe4
- Direction
- increasede4
- Comparator
- 25 and 75% SMD levelse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e4“Irrigating barley plants with the different water resources after depletion of 50% from soil FC significantly increased available P and decreased pH value as compared to 25 and 75% SMD levels”
Claim · model-written summary
Irrigating after 50% soil moisture depletion significantly decreased pH compared with 25 and 75% SMD levels.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- after depletion of 50% from soil FCe4
- Outcome
- pH valuee4
- Direction
- decreasede4
- Comparator
- 25 and 75% SMD levelse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e4“Irrigating barley plants with the different water resources after depletion of 50% from soil FC significantly increased available P and decreased pH value as compared to 25 and 75% SMD levels”
Claim · model-written summary
Irrigating after SMD of 50 and 75% significantly decreased soil salinity compared with 25%.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- after SMD of 50 and 75%e5
- Outcome
- Soil salinitye5
- Direction
- decreasede5
- Comparator
- 25%e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e5“Soil salinity was found to be significantly decreased by irrigating the plants after SMD of 50 and 75% compared to 25%”
Claim · model-written summary
Nile water with A. brasilense and 50% SMD gave the highest soil available P.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Nile water + A. brasilense + 50% SMDe6
- Interactor
- A. brasilenseAzospirillum brasilensee6symbiont
- Outcome
- soil available Pe6
- Direction
- higheste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e6“The highest soil available P and EC were obtained with the treatments Nile water + A. brasilense + 50% SMD and diluted sea water + B. subtilis + 25% SMD level, respectively”
Claim · model-written summary
Diluted sea water with B. subtilis and 25% SMD gave the highest soil EC.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- diluted sea water + B. subtilis + 25% SMD levele6
- Interactor
- B. subtilisBacillus subtilise6symbiont
- Outcome
- ECe6
- Direction
- higheste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e6“The highest soil available P and EC were obtained with the treatments Nile water + A. brasilense + 50% SMD and diluted sea water + B. subtilis + 25% SMD level, respectively”
Claim · model-written summary
El-Salam canal water with B. subtilis and 25% SMD gave the maximum soil pH.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- El-Salam canal water + B. subtilis + 25% SMD levele7
- Interactor
- B. subtilisBacillus subtilise7symbiont
- Outcome
- pH valuee7
- Direction
- maximume7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e7“the maximum pH value was recorded in the treatment El-Salam canal water + B. subtilis + 25% SMD level”
Claim · model-written summary
Rhizospheric total bacterial counts increased with growth period, reaching their highest after 90 days.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- increasing growth periode1
- Outcome
- Counts of total bacteria in the rhizospheric soile1
- Direction
- increasede1
- Qualifier
- after 90 dayse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e1“Counts of total bacteria in the rhizospheric soil of barley increased with increasing growth period reaching their highest after 90 days from sowing date”
Claim · model-written summary
Rhizospheric total bacterial counts decreased after 120 days, reaching their lowest figures.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- after 120 dayse2
- Outcome
- countse2
- Direction
- decreasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e2“After that, the counts markedly decreased reaching their lowest figures after 120 days”
Claim · model-written summary
Total rhizospheric bacterial counts decreased as SMD level increased from 25 to 75%.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- increasing SMD level from 25 to 75%e3
- Outcome
- total rhizospheric bacterial countse3
- Direction
- decreasede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e3“However, total rhizospheric bacterial counts decreased with increasing SMD level from 25 to 75%”
Claim · model-written summary
Diluted sea water irrigation significantly decreased grain yield and NPK uptake compared with Nile water.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- diluted sea watere4
- Outcome
- grain yield and NPK uptakee4
- Direction
- decreasede4
- Comparator
- the Nile watere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e4“Utilization of diluted sea water for irrigating barley plants significantly decreased grain yield and NPK uptake as compared to the Nile water”
Claim · model-written summary
Higher irrigation water salinity was associated with lower grain yield and K uptake.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- salinity of irrigation watere5
- Outcome
- grain yield and K uptakee5
- Direction
- lowere5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e5“The higher the salinity of irrigation water, the lower were the values of grain yield and K uptake”
Claim · model-written summary
Inoculation with A. brasilense AC1 significantly increased barley grain N uptake compared with B. subtilis AC2.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- A. brasilense AC1e6
- Interactor
- A. brasilense AC1Azospirillum brasilensee6symbiont
- Second interactor
- B. subtilis AC2Bacillus subtilise6symbiont
- Outcome
- barley grain N uptakee6
- Direction
- increasede6
- Comparator
- B. subtilis AC2e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e6“Inoculating barley seedswith A. brasilense AC1 significantly increased barley grain N uptake compared to B. subtilis AC2”
Claim · model-written summary
Increasing SMD from 25% to 75% FC significantly reduced grain yield and NPK uptake.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- increasing level of SMD from 25% to 75% FCe7
- Outcome
- Grain yield and NPK uptakee7
- Direction
- reducede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e7“Grain yield and NPK uptake were found to be significantly reduced with increasing level of SMD from 25% to 75% FC”
Claim · model-written summary
El-Salam canal water with A. brasilense AC1 and 25% SMD gave the highest grain yield and N uptake.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- El-Salam canal water + A. brasilense AC1 + 25% SMD levele1
- Interactor
- A. brasilense AC1Azospirillum brasilensee1symbiont
- Outcome
- grain yield and N uptake valuese1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e1“The highest grain yield and N uptake values were obtained with the treatment El-Salam canal water + A. brasilense AC1 + 25% SMD level”
Claim · model-written summary
Nile water with A. brasilense AC1 and 25% SMD gave the highest grain P uptake.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Nile water + A. brasilense AC1 + 25% SMD levele2
- Interactor
- A. brasilense AC1Azospirillum brasilensee2symbiont
- Outcome
- grain P and K uptakee2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e2“the highest grain P and K uptake were recorded under the treatments Nile water + A. brasilense AC1 + 25% SMD level and Nile water + B. subtilis AC2 + 25% SMD level, respectively”
Claim · model-written summary
Nile water with B. subtilis AC2 and 25% SMD gave the highest grain K uptake.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Nile water + B. subtilis AC2 + 25% SMD levele2
- Interactor
- B. subtilis AC2Bacillus subtilise2symbiont
- Outcome
- grain P and K uptakee2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley under Water Stress”
e2“the highest grain P and K uptake were recorded under the treatments Nile water + A. brasilense AC1 + 25% SMD level and Nile water + B. subtilis AC2 + 25% SMD level, respectively”
The same questions in other papers
Bacillus subtilis · nutrient: content · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- positive
Azospirillum brasilense · nutrient: content · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
Azospirillum brasilense · yield · Hordeum vulgare (barley)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.