Abstract
The field evaluation and prediction of nitrate-nitrogen movement are given for varying rates of irrigation and urea application to wheat growing on a sandy soil. Nitrate leaching increased and depth to peak concentration moved deeper with heavier irrigation. Larger splits of nitrogen in combination with light irrigation reduced the leaching loss, permitting greater utilization of nitrogen by plants. Under heavier irrigation, the amount of residual nitrogen increased with the number of nitrogen splits. A simple analytical solution has been presented for predicting the movement of surface applied solutes. The solution can be used for predicting nitrate leaching losses. The applicability of the expression in determining depth to peak concentration is established under a variety of situations.
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Claims 7
Claim · model-written summary
Heavier irrigation increased nitrate leaching.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- heavier irrigatione0
- Outcome
- Nitrate leachinge0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate leaching increased and depth to peak concentration moved deeper with heavier irrigation”
t0“to wheat growing on a sandy soil”
Claim · model-written summary
Heavier irrigation moved peak nitrate concentration deeper.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- heavier irrigatione0
- Outcome
- depth to peak concentratione0
- Direction
- deepere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrate leaching increased and depth to peak concentration moved deeper with heavier irrigation”
t0“to wheat growing on a sandy soil”
Claim · model-written summary
Larger nitrogen splits with light irrigation reduced nitrate leaching.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Larger splits of nitrogen in combination with light irrigatione0
- Outcome
- leaching losse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Larger splits of nitrogen in combination with light irrigation reduced the leaching loss”
t0“to wheat growing on a sandy soil”
Claim · model-written summary
The treatment permitted greater nitrogen use by plants.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- utilization of nitrogen by plantse0
- Direction
- greatere0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“permitting greater utilization of nitrogen by plants”
t0“to wheat growing on a sandy soil”
Claim · model-written summary
Residual nitrogen rose with nitrogen splits under heavier irrigation.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- number of nitrogen splitse0
- Outcome
- amount of residual nitrogene0
- Direction
- increasede0
- Qualifier
- heavier irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under heavier irrigation, the amount of residual nitrogen increased with the number of nitrogen splits”
t0“to wheat growing on a sandy soil”
Claim · model-written summary
An analytical solution predicts movement of surface applied solutes.
- Outcome
- movement of surface applied solutese0
Not reportedTaxonComparatorValue
Verbatim
e0“A simple analytical solution has been presented for predicting the movement of surface applied solutes”
t0“to wheat growing on a sandy soil”
Claim · model-written summary
The solution can predict nitrate leaching losses and depth to peak concentration.
- Outcome
- nitrate leaching lossese0
Not reportedTaxonComparatorValue
Verbatim
e0“The solution can be used for predicting nitrate leaching losses. The applicability of the expression in determining depth to peak concentration is established under a variety of situations”
t0“to wheat growing on a sandy soil”
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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.