Abstract
Abstract Determining soil Zn thresholds for wheat ( Triticum aestivum L.) is still challenging because soil Zn tests have been poorly calibrated. Therefore, this work aimed to determine, under field conditions, the diethylenetriaminepentaacetic acid (DTPA)–Zn critical threshold for wheat grain yield (GY) response to Zn fertilization in noncalcareous Mollisols. We conducted 14 Zn‐fertilization field trials in Typic Argiudolls from the Argentinean Pampas. Zinc fertilization increased GY in 6 out of 14 trials. Wheat GY response to Zn fertilization ranged from 300 to 949 kg ha –1 . Our DTPA–Zn threshold is the first one determined by field trials for wheat grown in Mollisols (1.03 mg kg −1 , with a 95% confidence interval from 0.87 to 1.23 mg kg −1 ). This threshold was greater than those previously reported for other soil types. Future studies should compare different Zn‐fertilization strategies for wheat on Mollisols by combining different fertilizer rates, sources, timings, and placements.
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Claims 4
Claim · model-written summary
Zinc fertilization increased wheat grain yield in six of fourteen trials.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- Zinc fertilizatione0
- Outcome
- GYe0
- Direction
- increasede0
- Value
- 6 out of 14 trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc fertilization increased GY in 6 out of 14 trials.”
e1“wheat ( Triticum aestivum L.)”
Claim · model-written summary
Wheat grain yield response to Zn fertilization ranged from 300 to 949 kg ha –1.
- Taxon
- WheatTriticum aestivume0
- Treatment
- Zn fertilizatione0
- Outcome
- GY responsee0
- Value
- 300 to 949 kg ha –1e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat GY response to Zn fertilization ranged from 300 to 949 kg ha –1”
Claim · model-written summary
The DTPA–Zn critical threshold for wheat grain yield response in Mollisols was 1.03 mg kg −1.
- Taxon
- wheatTriticum aestivume0
- Outcome
- DTPA–Zn thresholde0
- Value
- 1.03 mg kg −1e0
- Qualifier
- 95% confidence interval from 0.87 to 1.23 mg kg −1e0
- Setting
- Mollisolse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Our DTPA–Zn threshold is the first one determined by field trials for wheat grown in Mollisols (1.03 mg kg −1 , with a 95% confidence interval from 0.87 to 1.23 mg kg −1 )”
Claim · model-written summary
The DTPA–Zn threshold for wheat in Mollisols exceeded earlier soil-type thresholds.
- Taxon
- wheatTriticum aestivume1
- Outcome
- thresholde0
- Direction
- greatere0
- Comparator
- those previously reported for other soil typese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This threshold was greater than those previously reported for other soil types.”
e1“field trials for wheat grown in Mollisols”
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zinc atom · yield · Triticum aestivum (wheat)Results differ
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See all 3,438 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.