Abstract
Two field experiment were conducted in Tegzerte, Siwa Research Station; Desert Research Center during winter seasons of 2003 and 2004 to study the effect of phosphorus fertilization levels (0, 15.5, 31.0 and 46.5 kg/fed.), nitrogen fertilization levels (0, 80.0, 100.0 and 120.0 kg/fed.) and wheat grain rates (70.0, 80.0 and 90.0 kg/fed.) on weed control and relationship to wheat production. The experimental design was a split split-plot design with four replicates in both seasons, where the phosphorus fertilization treatments occupied the main plots, nitrogen fertilization treatments were arranged in the sup main plots and grain rates treatments in the sub-sub main ones, respectively. Weeds interference treatments were broad leaf weeds, grassy weeds and total annual weed. Results showed that increasing phosphorus and nitrogen fertilization levels and wheat grain rates led to decrease significantly broad leaf weeds (Chenopodium album, Malva parviflora, Cichorium pumpilum, Beta vulgaris, Convolvulus arvensis, Melilotus indicus and Medicago polymorpha), grassy weeds (Zygophyllum album, Phragmites australis, Setaria viridis and Echinochloa colonum), while wheat biological, grain and straw yield were increased significantly as a results of applied the treatments. Higher observation of biological, grain and straw yield were taken from the interaction between the three main factors, especially with (31.0 p kg./fed. & 100.0 N kg./fed. and 90.0 kg. wheat grains /fed. ), which led to 6.0, 2.4 and 3.6 ton. /fed., respectively compared to other treatments
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Claims 12
Claim · model-written summary
Increasing phosphorus fertilization significantly decreased broadleaf weeds.
- Taxon
- WHEAT
Triticum aestivumt0 - Treatment
- phosphoruse0
- Interactor
- broad leaf weedse0weed
- Outcome
- broad leaf weedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing phosphorus and nitrogen fertilization levels and wheat grain rates led to decrease significantly broad leaf weeds”
t0“WHEAT”
Claim · model-written summary
Increasing nitrogen fertilization significantly decreased broadleaf weeds.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- nitrogen fertilization levelse0
- Interactor
- broad leaf weedse0weed
- Outcome
- broad leaf weedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing phosphorus and nitrogen fertilization levels and wheat grain rates led to decrease significantly broad leaf weeds”
t0“WHEAT”
Claim · model-written summary
Increasing wheat grain rates significantly decreased broadleaf weeds.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- wheat grain ratese0
- Interactor
- broad leaf weedse0weed
- Outcome
- broad leaf weedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing phosphorus and nitrogen fertilization levels and wheat grain rates led to decrease significantly broad leaf weeds”
t0“WHEAT”
Claim · model-written summary
Increasing phosphorus fertilization significantly decreased grassy weeds.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- phosphoruse0
- Interactor
- grassy weedse0weed
- Outcome
- grassy weedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing phosphorus and nitrogen fertilization levels and wheat grain rates led to decrease significantly broad leaf weeds (Chenopodium album, Malva parviflora, Cichorium pumpilum, Beta vulgaris, Convolvulus arvensis, Melilotus indicus and Medicago polymorpha), grassy weeds”
t0“WHEAT”
Claim · model-written summary
Increasing nitrogen fertilization significantly decreased grassy weeds.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- nitrogen fertilization levelse0
- Interactor
- grassy weedse0weed
- Outcome
- grassy weedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing phosphorus and nitrogen fertilization levels and wheat grain rates led to decrease significantly broad leaf weeds (Chenopodium album, Malva parviflora, Cichorium pumpilum, Beta vulgaris, Convolvulus arvensis, Melilotus indicus and Medicago polymorpha), grassy weeds”
t0“WHEAT”
Claim · model-written summary
Increasing wheat grain rates significantly decreased grassy weeds.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- wheat grain ratese0
- Interactor
- grassy weedse0weed
- Outcome
- grassy weedse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing phosphorus and nitrogen fertilization levels and wheat grain rates led to decrease significantly broad leaf weeds (Chenopodium album, Malva parviflora, Cichorium pumpilum, Beta vulgaris, Convolvulus arvensis, Melilotus indicus and Medicago polymorpha), grassy weeds”
t0“WHEAT”
Claim · model-written summary
Increasing phosphorus fertilization significantly increased wheat biological, grain, and straw yield.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- phosphoruse1
- Outcome
- wheat biological, grain and straw yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat biological, grain and straw yield were increased significantly as a results of applied the treatments.”
e1“increasing phosphorus and nitrogen fertilization levels and wheat grain rates”
t0“WHEAT”
Claim · model-written summary
Increasing nitrogen fertilization significantly increased wheat biological, grain, and straw yield.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- nitrogen fertilization levelse1
- Outcome
- wheat biological, grain and straw yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat biological, grain and straw yield were increased significantly as a results of applied the treatments.”
e1“increasing phosphorus and nitrogen fertilization levels and wheat grain rates”
t0“WHEAT”
Claim · model-written summary
Increasing wheat grain rates significantly increased wheat biological, grain, and straw yield.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- wheat grain ratese1
- Outcome
- wheat biological, grain and straw yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat biological, grain and straw yield were increased significantly as a results of applied the treatments.”
e1“increasing phosphorus and nitrogen fertilization levels and wheat grain rates”
t0“WHEAT”
Claim · model-written summary
The stated three-factor combination produced 6.0 ton. /fed. biological yield.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- 31.0 p kg./fed. & 100.0 N kg./fed. and 90.0 kg. wheat grains /fed.e0
- Outcome
- biologicale0
- Direction
- Highere0
- Value
- 6.0e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher observation of biological, grain and straw yield were taken from the interaction between the three main factors, especially with (31.0 p kg./fed. & 100.0 N kg./fed. and 90.0 kg. wheat grains /fed. ), which led to 6.0, 2.4 and 3.6 ton. /fed., respectively compared to other treatments”
t0“WHEAT”
Claim · model-written summary
The stated three-factor combination produced 2.4 ton. /fed. grain yield.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- 31.0 p kg./fed. & 100.0 N kg./fed. and 90.0 kg. wheat grains /fed.e0
- Outcome
- graine0
- Direction
- Highere0
- Value
- 2.4e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher observation of biological, grain and straw yield were taken from the interaction between the three main factors, especially with (31.0 p kg./fed. & 100.0 N kg./fed. and 90.0 kg. wheat grains /fed. ), which led to 6.0, 2.4 and 3.6 ton. /fed., respectively compared to other treatments”
t0“WHEAT”
Claim · model-written summary
The stated three-factor combination produced 3.6 ton. /fed. straw yield.
- Taxon
- WHEATTriticum aestivumt0
- Treatment
- 31.0 p kg./fed. & 100.0 N kg./fed. and 90.0 kg. wheat grains /fed.e0
- Outcome
- straw yielde0
- Direction
- Highere0
- Value
- 3.6 ton. /fed.e0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher observation of biological, grain and straw yield were taken from the interaction between the three main factors, especially with (31.0 p kg./fed. & 100.0 N kg./fed. and 90.0 kg. wheat grains /fed. ), which led to 6.0, 2.4 and 3.6 ton. /fed., respectively compared to other treatments”
t0“WHEAT”
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