Abstract
Phosphorus is the second most significant macro nutrient in rice productivity. Phosphorus fixation in Egyptian soil makes it unavailable for rice to absorb. The goal of this study was to examine the effects of microbial and chemical sources of phosphorus fertilizers on the Egyptian Sakha 106 rice cultivar by applying different sources of phosphorus to increase the bioavailability of soil phosphorus for plants and to allow it to be fixed biologically to change it from an insoluble form to a soluble and available form for rice to absorb. So, in the 2019 and 2020 seasons, a field experiment was conducted at the experimental farm of Sakha Agricultural Research Station, Sakha, Kafr El-Sheikh, Egypt. The experiment was carried out using a Randomized Complete Block Design with four replications to determine the best phosphorus source for rice and soil among various treatments, which included 100% single super phosphate (SSP) basal application (P1), 75% single super phosphate (SSP) basal application (P2), P2 + phosphate-solubilizing bacteria (PSBs) top-dressing, P2 + arbuscular mycorrhizal fungi (AMFs) top-dressing P2 + phosphorus nanoparticles (PNPs) foliar spraying, P2 + phosphoric acid (PA) foliar spraying, P2 + (PSBs + AMFs) foliar spraying, P2 + (PSBs + PNPs) foliar spraying, P2 + (PSBs + PA) foliar spraying, P2 + (PNPs + PA) foliar spraying, P2 + (PSBs + PNPs + PA) foliar spraying and zero-phosphorus fertilizer. The results showed that the highest values were mostly obtained using the combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA, with substantial beneficial impacts on the leaf area index (3.706 and 3.527), dry matter accumulation (464.3 and 462.8 g m2), plant height (96.33 and 95.00 cm), phosphorus uptake in grain (24.3 and 24.49 Kg ha−1), phosphorus uptake in straw (17.7 and 17.0 Kg ha−1) and available phosphorus in the soil at harvest (21.75 and 21.70 ppm) in the 2019 and 2020 seasons, respectively; moreover, 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA or 100% SSP basal application alone improved the number of panicles (506.3 or 521.1 and 521.9 or 547.1 m−2), filled grain weight (3.549 or 3.534 and 3.627 or 3.767 g panicle−1), the percentage of filled grain (96.19 or 96.47 and 95.43 or 96.24%), grain yield (9.353 or 9.221 and 9.311 or 9.148 t ha−1) and straw yield (11.51 or 11.46 and 11.82 or 11.69 t ha−1) in the 2019 and 2020 seasons, respectively. Chemical P fertilizers combined with the foliar spraying of PSBs, PNPs and PA obtained the highest crop productivity and improved most of the examined characteristics without any significant changes with respect to chemical P application alone in some other characteristics, followed by 75% SSP + top-dressing with PSBs + AMFs. The treatment that included the combination of 75% SSP basal application and the foliar spraying of PSBs +PNPs +PA is recommended, as it might be utilized to boost rice yield by solubilizing P in soil and increasing the absorption efficiency. In addition, it reduces chemical P fertilizers by 25%, which would guarantee a cleaner environment and soil conservation.
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Claims 16
Claim · model-written summary
The combination of 75% SSP with foliar PSBs, PNPs and PA mostly gave the highest leaf area index, 3.706 and 3.527 in 2019 and 2020.
- Taxon
- Rice
Oryza sativat0
- Treatment
- combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- leaf area indexe0
- Direction
- highest valuese0
- Value
- 3.706 and 3.527e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values were mostly obtained using the combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA, with substantial beneficial impacts on the leaf area index (3.706 and 3.527)”
t0“Rice”
Claim · model-written summary
The same treatment mostly gave the highest dry matter accumulation, 464.3 and 462.8 g m2.
- Taxon
- rice
Oryza sativat0
- Treatment
- combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- dry matter accumulatione0
- Direction
- highest valuese0
- Value
- 464.3 and 462.8 g m2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values were mostly obtained using the combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA, with substantial beneficial impacts on the leaf area index (3.706 and 3.527), dry matter accumulation (464.3 and 462.8 g m2)”
t0“Rice”
Claim · model-written summary
The same treatment mostly gave the highest plant height, 96.33 and 95.00 cm.
- Taxon
- rice
Oryza sativat0
- Treatment
- combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- plant heighte0
- Direction
- highest valuese0
- Value
- 96.33 and 95.00 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values were mostly obtained using the combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA, with substantial beneficial impacts on the leaf area index (3.706 and 3.527), dry matter accumulation (464.3 and 462.8 g m2), plant height (96.33 and 95.00 cm)”
t0“Rice”
Claim · model-written summary
The same treatment mostly gave the highest phosphorus uptake in grain, 24.3 and 24.49 Kg ha−1.
- Taxon
- rice
Oryza sativat0
- Treatment
- combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- phosphorus uptake in graine0
- Direction
- highest valuese0
- Value
- 24.3 and 24.49 Kg ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values were mostly obtained using the combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA, with substantial beneficial impacts on the leaf area index (3.706 and 3.527), dry matter accumulation (464.3 and 462.8 g m2), plant height (96.33 and 95.00 cm), phosphorus uptake in grain (24.3 and 24.49 Kg ha−1)”
t0“Rice”
Claim · model-written summary
The same treatment mostly gave the highest phosphorus uptake in straw, 17.7 and 17.0 Kg ha−1.
- Taxon
- rice
Oryza sativat0
- Treatment
- combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- phosphorus uptake in strawe0
- Direction
- highest valuese0
- Value
- 17.7 and 17.0 Kg ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values were mostly obtained using the combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA, with substantial beneficial impacts on the leaf area index (3.706 and 3.527), dry matter accumulation (464.3 and 462.8 g m2), plant height (96.33 and 95.00 cm), phosphorus uptake in grain (24.3 and 24.49 Kg ha−1), phosphorus uptake in straw (17.7 and 17.0 Kg ha−1)”
t0“Rice”
Claim · model-written summary
The same treatment mostly gave the highest available soil phosphorus at harvest, 21.75 and 21.70 ppm.
- Taxon
- rice
Oryza sativat0
- Treatment
- combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- available phosphorus in the soil at harveste0
- Direction
- highest valuese0
- Value
- 21.75 and 21.70 ppme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest values were mostly obtained using the combination of 75% SSP basal application with the foliar spraying of PSBs, PNPs and PA, with substantial beneficial impacts on the leaf area index (3.706 and 3.527), dry matter accumulation (464.3 and 462.8 g m2), plant height (96.33 and 95.00 cm), phosphorus uptake in grain (24.3 and 24.49 Kg ha−1), phosphorus uptake in straw (17.7 and 17.0 Kg ha−1) and available phosphorus in the soil at harvest (21.75 and 21.70 ppm)”
t0“Rice”
Claim · model-written summary
The two phosphorus treatments improved panicle number, with reported values of 506.3 or 521.1 and 521.9 or 547.1 m−2.
- Taxon
- rice
Oryza sativat0
- Treatment
- 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- number of paniclese0
- Direction
- improvede0
- Value
- 506.3 or 521.1 and 521.9 or 547.1 m−2e0
- Comparator
- 100% SSP basal application alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% SSP basal application with the foliar spraying of PSBs, PNPs and PA or 100% SSP basal application alone improved the number of panicles (506.3 or 521.1 and 521.9 or 547.1 m−2)”
t0“Rice”
Claim · model-written summary
The two phosphorus treatments improved filled grain weight, with reported values of 3.549 or 3.534 and 3.627 or 3.767 g panicle−1.
- Taxon
- rice
Oryza sativat0
- Treatment
- 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- filled grain weighte0
- Direction
- improvede0
- Value
- 3.549 or 3.534 and 3.627 or 3.767 g panicle−1e0
- Comparator
- 100% SSP basal application alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% SSP basal application with the foliar spraying of PSBs, PNPs and PA or 100% SSP basal application alone improved the number of panicles (506.3 or 521.1 and 521.9 or 547.1 m−2), filled grain weight (3.549 or 3.534 and 3.627 or 3.767 g panicle−1)”
t0“Rice”
Claim · model-written summary
The two phosphorus treatments improved filled grain percentage, with reported values of 96.19 or 96.47 and 95.43 or 96.24%.
- Taxon
- rice
Oryza sativat0
- Treatment
- 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- percentage of filled graine0
- Direction
- improvede0
- Value
- 96.19 or 96.47 and 95.43 or 96.24%e0
- Comparator
- 100% SSP basal application alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% SSP basal application with the foliar spraying of PSBs, PNPs and PA or 100% SSP basal application alone improved the number of panicles (506.3 or 521.1 and 521.9 or 547.1 m−2), filled grain weight (3.549 or 3.534 and 3.627 or 3.767 g panicle−1), the percentage of filled grain (96.19 or 96.47 and 95.43 or 96.24%)”
t0“Rice”
Claim · model-written summary
The two phosphorus treatments improved grain yield, with reported values of 9.353 or 9.221 and 9.311 or 9.148 t ha−1.
- Taxon
- rice
Oryza sativat0
- Treatment
- 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- grain yielde0
- Direction
- improvede0
- Value
- 9.353 or 9.221 and 9.311 or 9.148 t ha−1e0
- Comparator
- 100% SSP basal application alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% SSP basal application with the foliar spraying of PSBs, PNPs and PA or 100% SSP basal application alone improved the number of panicles (506.3 or 521.1 and 521.9 or 547.1 m−2), filled grain weight (3.549 or 3.534 and 3.627 or 3.767 g panicle−1), the percentage of filled grain (96.19 or 96.47 and 95.43 or 96.24%), grain yield (9.353 or 9.221 and 9.311 or 9.148 t ha−1)”
t0“Rice”
Claim · model-written summary
The two phosphorus treatments improved straw yield, with reported values of 11.51 or 11.46 and 11.82 or 11.69 t ha−1.
- Taxon
- rice
Oryza sativat0
- Treatment
- 75% SSP basal application with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- straw yielde0
- Direction
- improvede0
- Value
- 11.51 or 11.46 and 11.82 or 11.69 t ha−1e0
- Comparator
- 100% SSP basal application alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“75% SSP basal application with the foliar spraying of PSBs, PNPs and PA or 100% SSP basal application alone improved the number of panicles (506.3 or 521.1 and 521.9 or 547.1 m−2), filled grain weight (3.549 or 3.534 and 3.627 or 3.767 g panicle−1), the percentage of filled grain (96.19 or 96.47 and 95.43 or 96.24%), grain yield (9.353 or 9.221 and 9.311 or 9.148 t ha−1) and straw yield (11.51 or 11.46 and 11.82 or 11.69 t ha−1)”
t0“Rice”
Claim · model-written summary
Chemical P fertilizer plus foliar PSBs, PNPs and PA gave the highest crop productivity.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Chemical P fertilizers combined with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- crop productivitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical P fertilizers combined with the foliar spraying of PSBs, PNPs and PA obtained the highest crop productivity”
t0“Rice”
Claim · model-written summary
The combined chemical and foliar treatment improved most examined characteristics.
- Taxon
- Rice
Oryza sativat0
- Treatment
- Chemical P fertilizers combined with the foliar spraying of PSBs, PNPs and PAe0
- Outcome
- most of the examined characteristicse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chemical P fertilizers combined with the foliar spraying of PSBs, PNPs and PA obtained the highest crop productivity and improved most of the examined characteristics”
t0“Rice”
Claim · model-written summary
Some other traits did not differ significantly from chemical P application alone.
- Taxon
- Rice
Oryza sativat0
- Outcome
- some other characteristicse0
- Direction
- without any significant changese0
- Comparator
- chemical P application alonee0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without any significant changes with respect to chemical P application alone in some other characteristics”
t0“Rice”
Claim · model-written summary
The combined foliar treatment ranked ahead of 75% SSP with PSBs and AMFs top dressing.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 75% SSP + top-dressing with PSBs + AMFse0
- Outcome
- followed bye0
- Direction
- followed bye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“followed by 75% SSP + top-dressing with PSBs + AMFs”
t0“Rice”
Claim · model-written summary
The authors recommend 75% SSP with foliar PSBs, PNPs and PA to boost rice yield while reducing chemical phosphorus fertilizer by 25%.
- Taxon
- rice
Oryza sativae0
- Treatment
- combination of 75% SSP basal application and the foliar spraying of PSBs +PNPs +PAe0
- Outcome
- boost rice yielde0
- Value
- 25%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment that included the combination of 75% SSP basal application and the foliar spraying of PSBs +PNPs +PA is recommended, as it might be utilized to boost rice yield by solubilizing P in soil and increasing the absorption efficiency. In addition, it reduces chemical P fertilizers by 25%”
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See all 313 papers →8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.