Abstract
Durum wheat was grown with deficient, adequate, and excessive rates of ¹⁵N-labeled nitrogen fertilizer in order to document fertilizer nitrogen movement in the soil with differing nitrogen management. Crop water use increased with nitrogen rate due to increased vegetative growth. The amount of excess water applied increased with a decrease in nitrogen rate. Soil bromide concentrations at harvest suggest that the maximum potential depth of leaching was 3 to 6 feet. Most of the fertilizer applied in this study was recovered in the top 2 to 3 feet of soil. Fertilizer nitrogen rate and timing resulted in some differences in recovery of labeled fertilizer in the soil and plant, but did not contribute significantly to the depth of fertilizer nitrogen leaching.
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Claims 6
Claim · model-written summary
Crop water use increased with nitrogen rate due to vegetative growth.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- nitrogen ratee0
- Outcome
- Crop water usee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crop water use increased with nitrogen rate due to increased vegetative growth”
t0“Nitrogen Fertilizer Movement in the Soil as Influenced by Nitrogen Rate and Timing in Wheat Production, 1991”
Claim · model-written summary
Excess water applied increased as nitrogen rate decreased.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- nitrogen ratee0
- Outcome
- excess water appliede0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The amount of excess water applied increased with a decrease in nitrogen rate”
t0“Nitrogen Fertilizer Movement in the Soil as Influenced by Nitrogen Rate and Timing in Wheat Production, 1991”
Claim · model-written summary
Soil bromide suggested a maximum potential leaching depth of 3 to 6 feet.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- maximum potential depth of leachinge0
- Value
- 3 to 6 feete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil bromide concentrations at harvest suggest that the maximum potential depth of leaching was 3 to 6 feet”
t0“Nitrogen Fertilizer Movement in the Soil as Influenced by Nitrogen Rate and Timing in Wheat Production, 1991”
Claim · model-written summary
Most fertilizer was recovered in the top 2 to 3 feet of soil.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- fertilizer appliede0
- Value
- 2 to 3 feete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Most of the fertilizer applied in this study was recovered in the top 2 to 3 feet of soil”
t0“Nitrogen Fertilizer Movement in the Soil as Influenced by Nitrogen Rate and Timing in Wheat Production, 1991”
Claim · model-written summary
Nitrogen rate and timing caused some differences in soil and plant recovery of labeled fertilizer.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Fertilizer nitrogen rate and timinge0
- Outcome
- recovery of labeled fertilizere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer nitrogen rate and timing resulted in some differences in recovery of labeled fertilizer in the soil and plant”
t0“Nitrogen Fertilizer Movement in the Soil as Influenced by Nitrogen Rate and Timing in Wheat Production, 1991”
Claim · model-written summary
Nitrogen rate and timing did not significantly alter fertilizer nitrogen leaching depth.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- Nitrogen rate and timingt0
- Outcome
- depth of fertilizer nitrogen leachinge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but did not contribute significantly to the depth of fertilizer nitrogen leaching”
t0“Nitrogen Fertilizer Movement in the Soil as Influenced by Nitrogen Rate and Timing in Wheat Production, 1991”
The same questions in other papers
nitrogen · environment: emissions · Triticum aestivum (wheat)Positive and negative results
9 papers in the same direction as this paper · 19 in the opposite direction
- positive
- positive
- positive
25 papers more in this group
See all 29 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.