Abstract
Applying sufficient nitrogen is a key factor for plant growth and yield development. A field study was conducted in 2022 at the research farm of the Agriculture Faculty, Laghman University, to assess the effects of two planting densities, D1 (75 cm x 20 cm) and D2 (65 cm x 20 cm), and four nitrogen rates, N1 (120 kg N/ha), N2 (140 kg N/ha), N3 (160 kg N/ha), and N4 (180 kg N/ha), on the growth and yield parameters of the corn variety GWG888, as well as on weed composition. Results showed that both nitrogen rates and planting densities significantly affected corn growth, yield, and weed composition. Plant height, leaf count, cob count, cob length, and dry matter yield were maximized with a nitrogen rate of 160 kg N/ha (N3). Meanwhile, the highest weed species diversity and population were observed at 180 kg N/ha (N4). The higher planting density (65 cm x 20 cm) reduced plant height and leaf number but significantly increased dry matter yield. These findings suggest that the optimal nitrogen rate for improved corn growth and yield in Laghman Province is 160 kg N/ha with a planting density of 75 cm x 20 cm.
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Claims 7
Claim · model-written summary
Plant height, leaf count and cob count of corn were maximized at 160 kg N/ha (N3).
- Taxon
- corn
Zea mays subsp. mayst0 - Material
- GWG888e2
- Treatment
- nitrogen rate of 160 kg N/ha (N3)e1
- Outcome
- Plant height, leaf count, cob counte1
- Direction
- maximizede1
- Setting
- Laghman Provincet0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Growth, Yield, and Weed Composition in Laghman Province”
e1“Plant height, leaf count, cob count, cob length, and dry matter yield were maximized with a nitrogen rate of 160 kg N/ha (N3)”
e2“the corn variety GWG888”
Claim · model-written summary
Cob length and dry matter yield of corn were maximized at 160 kg N/ha (N3).
- Taxon
- cornZea mays subsp. mayst0
- Material
- GWG888e2
- Treatment
- nitrogen rate of 160 kg N/ha (N3)e1
- Outcome
- cob length, and dry matter yielde1
- Direction
- maximizede1
- Setting
- Laghman Provincet0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Growth, Yield, and Weed Composition in Laghman Province”
e1“Plant height, leaf count, cob count, cob length, and dry matter yield were maximized with a nitrogen rate of 160 kg N/ha (N3)”
e2“the corn variety GWG888”
Claim · model-written summary
Weed species diversity and population were highest at 180 kg N/ha (N4) in corn.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- 180 kg N/ha (N4)e3
- Interactor
- weed speciese3weed
- Outcome
- weed species diversity and populatione3
- Direction
- higheste3
- Setting
- Laghman Provincet0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Growth, Yield, and Weed Composition in Laghman Province”
e3“the highest weed species diversity and population were observed at 180 kg N/ha (N4)”
Claim · model-written summary
Higher planting density (65 cm x 20 cm) reduced plant height and leaf number of corn.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- higher planting density (65 cm x 20 cm)e5
- Outcome
- plant height and leaf numbere5
- Direction
- reducede5
- Setting
- Laghman Provincet0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Growth, Yield, and Weed Composition in Laghman Province”
e5“The higher planting density (65 cm x 20 cm) reduced plant height and leaf number but significantly increased dry matter yield”
Claim · model-written summary
Higher planting density (65 cm x 20 cm) significantly increased dry matter yield of corn.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- higher planting density (65 cm x 20 cm)e5
- Outcome
- dry matter yielde5
- Direction
- increasede5
- Setting
- Laghman Provincet0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Growth, Yield, and Weed Composition in Laghman Province”
e5“The higher planting density (65 cm x 20 cm) reduced plant height and leaf number but significantly increased dry matter yield”
Claim · model-written summary
Nitrogen rates and planting densities significantly affected corn growth, yield and weed composition.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- nitrogen rates and planting densitiese4
- Outcome
- corn growth, yield, and weed compositione4
- Setting
- Laghman Provincet0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Corn Growth, Yield, and Weed Composition in Laghman Province”
e4“both nitrogen rates and planting densities significantly affected corn growth, yield, and weed composition”
Claim · model-written summary
The optimal nitrogen rate for improved corn growth and yield in Laghman Province is 160 kg N/ha with a planting density of 75 cm x 20 cm.
- Taxon
- cornZea mays subsp. mayse6
- Outcome
- optimal nitrogen rate for improved corn growth and yielde6
- Setting
- Laghman Provincee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the optimal nitrogen rate for improved corn growth and yield in Laghman Province is 160 kg N/ha with a planting density of 75 cm x 20 cm”
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