Abstract
Two field trails were conducted during the two successive seasons 2007-2008 on maize plants at the experimental farm of Sakha Agric. Res. Station, Kafr El- Sheikh Governorate, Egypt. The aim of this study was to investigate the influence of maize grain treated with Azotobacter chroococcum and Bacillus megatherium and their combinations with NPK under three N-levels; 80, 100, and 120 kg N/fad for N1, N2, and N3 to increase yield, NPK uptake by maize plants and the availability of NPK in the soil. The experiments were conducted in split plot design, with three replicates. The observed results can be summarized as follows: The yield and components of maize, NPK uptake and the availability of NPK in the studied soil were affected significantly by biofertilizer treatments and N-levels. The maximum values of available N were obtained by the application of Azotobacter chroococcum and Bacillus magetherium with NPK under N3 treatment. the maximum values of available P were recoded by the application of Bacillus megatherium with NPK under N3 treatment. Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons. While shelling percentage did not significantly affected by different treatments. The application of these results should help in reducing environmental pollution.
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Claims 13
Claim · model-written summary
Biofertilizer treatments and nitrogen levels significantly affected maize yield and components.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and components of maize, NPK uptake and the availability of NPK in the studied soil were affected significantly by biofertilizer treatments and N-levels.”
Claim · model-written summary
Biofertilizer treatments and nitrogen levels significantly affected maize NPK uptake.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield and components of maize, NPK uptake and the availability of NPK in the studied soil were affected significantly by biofertilizer treatments and N-levels.”
Claim · model-written summary
Biofertilizer and nitrogen treatments significantly affected soil NPK availability.
Not reportedTaxonComparatorDirection
Verbatim
e0“The yield and components of maize, NPK uptake and the availability of NPK in the studied soil were affected significantly by biofertilizer treatments and N-levels.”
Claim · model-written summary
Combined Azotobacter, Bacillus, and NPK under N3 gave maximum soil available nitrogen.
- Treatment
- Azotobacter chroococcum and Bacillus magetherium with NPK under N3 treatmente0
- Outcome
- available Ne0
- Direction
- maximume0
Not reportedTaxon
Verbatim
e0“The maximum values of available N were obtained by the application of Azotobacter chroococcum and Bacillus magetherium with NPK under N3 treatment.”
Claim · model-written summary
Bacillus with NPK under N3 gave maximum soil available phosphorus.
Not reportedTaxon
Verbatim
e0“the maximum values of available P were recoded by the application of Bacillus megatherium with NPK under N3 treatment.”
Claim · model-written summary
Combined biofertilizers and NPK under N3 raised maize grain yield by 20.9 and 17.9% across the two seasons.
- Treatment
- Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3e0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 20.9 and 17.9%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons.”
t0“MAIZE YIELD”
Claim · model-written summary
Combined biofertilizers and NPK under N3 raised maize straw yield by 16.8 and 20.6%.
- Treatment
- Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3e1
- Outcome
- straw yielde0
- Direction
- increasede1
- Value
- 16.8 and 20.6%e0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“straw yield (16.8 and 20.6%)”
e1“Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons.”
t0“MAIZE YIELD”
Claim · model-written summary
Combined biofertilizers and NPK under N3 raised maize 100 grain weight by 9.9 and 13.3%.
- Treatment
- Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3e0
- Outcome
- 100-grain weighte0
- Direction
- increasede0
- Value
- 9.9 and 13.3%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons.”
t0“MAIZE YIELD”
Claim · model-written summary
Combined biofertilizers and NPK under N3 raised maize ear weight by 21.0 and 18.0.
- Treatment
- Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3e0
- Outcome
- ear weighte0
- Direction
- increasede0
- Value
- 21.0 and 18.0e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons.”
t0“MAIZE YIELD”
Claim · model-written summary
Combined biofertilizers and NPK under N3 increased maize grain nitrogen uptake by 35.1 and 31.3%.
- Treatment
- Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3e0
- Outcome
- N, P, and K uptake by maize graine0
- Direction
- increasede0
- Value
- 35.1 and 31.3%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons.”
t0“MAIZE YIELD”
Claim · model-written summary
Combined biofertilizers and NPK under N3 increased maize grain phosphorus uptake by 21.2 and 26.9%.
- Treatment
- Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3e0
- Outcome
- N, P, and K uptake by maize graine0
- Direction
- increasede0
- Value
- 21.2 and 26.9%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons.”
t0“MAIZE YIELD”
Claim · model-written summary
Combined biofertilizers and NPK under N3 increased maize grain potassium uptake by 18.1 and 31.1%.
- Treatment
- Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3e0
- Outcome
- N, P, and K uptake by maize graine0
- Direction
- increasede0
- Value
- 18.1 and 31.1%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combination of A.chroococcum, B.megatherium, and NPK fertilizers under N3 significantly increased grain yield (20.9 and 17.9%), straw yield (16.8 and 20.6%), 100-grain weight (9.9 and 13.3%), ear weight (21.0 and 18.0) and N, P, and K uptake by maize grain [(35.1 and 31.3%), (21.2 and 26.9%) and (18.1 and 31.1%)] over the control for N, P, and K, respectively, in 2007 and 2008 seasons.”
t0“MAIZE YIELD”
Claim · model-written summary
Shelling percentage did not change significantly across treatments.
- Treatment
- different treatmentse0
- Outcome
- shelling percentagee0
- Direction
- did not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While shelling percentage did not significantly affected by different treatments.”
t0“MAIZE YIELD”
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