Abstract
One field experiment was conducted at Hada Al-Sham Ex- perimental Station, King Abdulaziz University, to study the effect of three different rates of irrigation, based on depletion ratios of 50%, 25%, 10% (IR 1 , IR 2 , IR 3 ) and four different rates of nitrogen fertiliza- tion (urea), zero, 100, 200, 300 kg/ha (N 0 , N 1 , N 2 , N 3 ) of hybrid corn plant (AGA Seed 215 Cultivar). Total dry matter accumulation and its parts (leaves, stems, ears, and tassels) as well as the nitrogen content in different plant parts at different growth stages during two successive sowing dates (autumn 1994 and spring 1995) were determined. The ir- rigation scheduling processes were designed under constraint of equal total seasonal applied water for different irrigation treatments, which were 90.15 cm/sowing date one (9015 m3 /ha/sowing date one) and 82.1 cm/sowing date two (8210 m 3 /ha/sowing date two) for two sowing dates, respectively. The first sowing date outcome had a significantly higher leaf area index and dry weight (ear, tassel and total), plant nitro- gen percentage (stem, ear and total). However, the nitrogen percentage of tassel was significantly higher in second sowing date . All plant var- iables (dry matters) were higher under the fourth plant stage (matura- tion) except tassel dry weights. The nitrogen treatment affected sig- nificantly some growth variables, where the N 3 treatment gave higher values of dry weight (3202.9 kg/ha for ear, 232.3 kg/ha for tassel and 6438.2 kg/ha for total), and nitrogen percentage (1.98 gm/kg for leaf, and stem), while N 2 treatment gave higher values of nitrogen content in plant and its parts, (2.9 gm/kg for total, 2.84 gm/kg for leaf, 1.97 gm/kg for stem, 1.67 gm/kg and 1.56 gm/kg for tassel). There was no sig- nificant effect for the irrigation regimes or interaction treatments (nitro- gen treatment and irrigation regimes) on all the studied plant variables.
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Claims 15
Claim · model-written summary
The first sowing date produced higher leaf area index and ear, tassel and total dry weight.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- first sowing datee0
- Outcome
- leaf area index and dry weight (ear, tassel and total)e0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The first sowing date outcome had a significantly higher leaf area index and dry weight (ear, tassel and total)”
t0“Corn”
Claim · model-written summary
The first sowing date had higher stem, ear and total plant nitrogen percentage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- first sowing datee1
- Outcome
- plant nitro- gen percentage (stem, ear and total)e0
- Direction
- highere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant nitro- gen percentage (stem, ear and total)”
t0“Corn”
e1“The first sowing date outcome had a significantly higher leaf area index and dry weight (ear, tassel and total)”
Claim · model-written summary
Tassel nitrogen percentage was higher in the second sowing date.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- second sowing datee0
- Outcome
- nitrogen percentage of tassele0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nitrogen percentage of tassel was significantly higher in second sowing date”
t0“Corn”
Claim · model-written summary
Dry matter variables other than tassel dry weight peaked at maturation.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- fourth plant stage (matura- tion)e0
- Outcome
- plant var- iables (dry matters)e0
- Direction
- highere0
- Qualifier
- except tassel dry weightse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All plant var- iables (dry matters) were higher under the fourth plant stage (matura- tion) except tassel dry weights”
t0“Corn”
Claim · model-written summary
N 3 gave the highest ear dry weight, 3202.9 kg/ha.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- eare0
- Treatment
- N 3e0
- Outcome
- dry weighte0
- Direction
- highere0
- Value
- 3202.9 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 3 treatment gave higher values of dry weight (3202.9 kg/ha for ear”
t0“Corn”
Claim · model-written summary
N 3 gave higher tassel dry weight, 232.3 kg/ha.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- tassele0
- Treatment
- N 3e0
- Outcome
- dry weighte0
- Direction
- highere0
- Value
- 232.3 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 3 treatment gave higher values of dry weight (3202.9 kg/ha for ear, 232.3 kg/ha for tassel”
t0“Corn”
Claim · model-written summary
N 3 gave higher total dry weight, 6438.2 kg/ha.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- N 3e0
- Outcome
- dry weighte0
- Direction
- highere0
- Value
- 6438.2 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 3 treatment gave higher values of dry weight (3202.9 kg/ha for ear, 232.3 kg/ha for tassel and 6438.2 kg/ha for total”
t0“Corn”
Claim · model-written summary
N 3 gave higher leaf and stem nitrogen percentage of 1.98 gm/kg.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- leaf, and steme0
- Treatment
- N 3e1
- Outcome
- nitrogen percentagee0
- Direction
- highere1
- Value
- 1.98 gm/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen percentage (1.98 gm/kg for leaf, and stem)”
t0“Corn”
e1“The nitrogen treatment affected sig- nificantly some growth variables, where the N 3 treatment gave higher values of dry weight”
Claim · model-written summary
N 2 gave higher total nitrogen content, 2.9 gm/kg.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- N 2e0
- Outcome
- nitrogen contente0
- Direction
- highere0
- Value
- 2.9 gm/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 2 treatment gave higher values of nitrogen content in plant and its parts, (2.9 gm/kg for total”
t0“Corn”
Claim · model-written summary
N 2 gave higher leaf nitrogen content, 2.84 gm/kg.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- leafe0
- Treatment
- N 2e0
- Outcome
- nitrogen contente0
- Direction
- highere0
- Value
- 2.84 gm/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 2 treatment gave higher values of nitrogen content in plant and its parts, (2.9 gm/kg for total, 2.84 gm/kg for leaf”
t0“Corn”
Claim · model-written summary
N 2 gave higher stem nitrogen content, 1.97 gm/kg.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- steme0
- Treatment
- N 2e0
- Outcome
- nitrogen contente0
- Direction
- highere0
- Value
- 1.97 gm/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 2 treatment gave higher values of nitrogen content in plant and its parts, (2.9 gm/kg for total, 2.84 gm/kg for leaf, 1.97 gm/kg for stem”
t0“Corn”
Claim · model-written summary
N 2 gave a reported tassel nitrogen content of 1.67 gm/kg.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- N 2e0
- Outcome
- nitrogen contente0
- Direction
- highere0
- Value
- 1.67 gm/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 2 treatment gave higher values of nitrogen content in plant and its parts, (2.9 gm/kg for total, 2.84 gm/kg for leaf, 1.97 gm/kg for stem, 1.67 gm/kg and 1.56 gm/kg for tassel”
t0“Corn”
Claim · model-written summary
N 2 gave reported tassel nitrogen content of 1.56 gm/kg.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- tassele0
- Treatment
- N 2e0
- Outcome
- nitrogen contente0
- Direction
- highere0
- Value
- 1.56 gm/kge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N 2 treatment gave higher values of nitrogen content in plant and its parts, (2.9 gm/kg for total, 2.84 gm/kg for leaf, 1.97 gm/kg for stem, 1.67 gm/kg and 1.56 gm/kg for tassel”
t0“Corn”
Claim · model-written summary
Irrigation regimes showed no significant effect on studied plant variables.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- irrigation regimese0
- Outcome
- all the studied plant variablese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no sig- nificant effect for the irrigation regimes or interaction treatments (nitro- gen treatment and irrigation regimes) on all the studied plant variables”
t0“Corn”
Claim · model-written summary
Nitrogen by irrigation interactions showed no significant effect on studied plant variables.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- interaction treatments (nitro- gen treatment and irrigation regimes)e0
- Outcome
- all the studied plant variablese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no sig- nificant effect for the irrigation regimes or interaction treatments (nitro- gen treatment and irrigation regimes) on all the studied plant variables”
t0“Corn”
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