Abstract
Abstract Since there is an increasing use of high analysis fertilizers containing very little sulfur, two field experiments were conducted to evaluate the S requirements of corn ( Zea mays L.) grown on Coastal Plain soils under present management practices. The soils used were Goldsboro loamy sand (Aquic Paleudult) and Wagram loamy sand (Arenic Paleudult). Experiments consisted of a complete factorial arrangement of nitrogen rates (which varied from 56 to 224 kg/ha) and S rates (which varied from 0 to 66 kg/ha). Gypsum was used as the source of S. The hybrid ‘Pioneer 3369A’ was grown at both sites. Nitrogen fertilization had the largest effect on yield and N content of corn grain. The effects of S fertilization depended on the N supply. With 56 or 112 kg N/ha, S additions had no effect or depressed grain yields and N content. With 168 or 224 kg N/ha, S fertilization significantly increased grain yields and N content of corn grain. Total amounts of S accumulated by corn varied from 7 to 20 kg/ha depending on soil type, N, and S rates. Nitrogen fertilization had a larger effect than S fertilization in determining total S accumulation in grain and stover. This study indicated that additions of 30 to 60 kg S/ha to adequately N‐fertilized corn crops are likely to improve grain yield and quality of corn grown on Coastal Plain soils, particularly on those having deep sandy A horizons.
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Claims 6
Claim · model-written summary
Nitrogen fertilization had the largest effect on corn grain yield.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Nitrogen fertilizatione0
- Outcome
- yielde0
- Direction
- largest effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization had the largest effect on yield and N content of corn grain”
Claim · model-written summary
Nitrogen fertilization had the largest effect on corn grain nitrogen content.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Nitrogen fertilizatione0
- Outcome
- N content of corn graine0
- Direction
- largest effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen fertilization had the largest effect on yield and N content of corn grain”
Claim · model-written summary
At 168 or 224 kg N/ha, sulfur fertilization significantly increased corn grain yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- S fertilizatione0
- Outcome
- grain yieldse0
- Direction
- increasede0
- Qualifier
- 168 or 224 kg N/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With 168 or 224 kg N/ha, S fertilization significantly increased grain yields and N content of corn grain”
Claim · model-written summary
At 168 or 224 kg N/ha, sulfur fertilization significantly increased corn grain nitrogen content.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- S fertilizatione0
- Outcome
- N content of corn graine0
- Direction
- increasede0
- Qualifier
- 168 or 224 kg N/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With 168 or 224 kg N/ha, S fertilization significantly increased grain yields and N content of corn grain”
Claim · model-written summary
Corn accumulated 7 to 20 kg/ha sulfur depending on soil type and fertilizer rates.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- Total amounts of S accumulatede0
- Value
- 7 to 20 kg/hae0
- Qualifier
- depending on soil type, N, and S ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total amounts of S accumulated by corn varied from 7 to 20 kg/ha depending on soil type, N, and S rates”
Claim · model-written summary
The authors suggested 30 to 60 kg S/ha for adequately nitrogen-fertilized corn on Coastal Plain soils to improve yield and quality.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- 30 to 60 kg S/hae0
- Outcome
- improve grain yield and qualitye0
- Setting
- Coastal Plain soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“additions of 30 to 60 kg S/ha to adequately N‐fertilized corn crops are likely to improve grain yield and quality of corn grown on Coastal Plain soils”
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