Abstract
Abstract Field experiments were conducted with IITA maize ( Zea mays L.) composite B at six locations ranging from forest to savannah in the Western State of Nigeria to assess the level of zinc response on sandy Inceptisols. Zinc, as Na 2 Zn EDTA, was applied as broadcast application at 0, 1.0, 2.0, 4.0, and 8.0 kg/ha. Zinc response in terms of growth development and grain yield was limited to the savannah where yield increases of 1,747 kg/ha of grain were obtained with application of Zn at 1 to 2 kg/ha. For optimum grain yield, 12 ppm Zn in tissue appeared minimal. Maize response to Zn application was most probable when the 0.1 N HCl soil‐extractable Zn was less than 1.0 ppm when measured at silking time.
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Claims 4
Claim · model-written summary
Growth development and grain yield responses to zinc were limited to the savannah.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc response in terms of growth development and grain yield was limited to the savannah”
t0“Maize”
Claim · model-written summary
Zinc at 1 to 2 kg/ha increased savannah maize grain yield by 1,747 kg/ha.
- Treatment
- application of Zn at 1 to 2 kg/hae0
- Outcome
- yielde0
- Direction
- increasese0
- Value
- 1,747 kg/hae0
- Setting
- savannahe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the savannah where yield increases of 1,747 kg/ha of grain were obtained with application of Zn at 1 to 2 kg/ha”
t0“Maize”
Claim · model-written summary
A tissue zinc level of 12 ppm appeared minimal for optimum maize grain yield.
- Organ / stage
- tissuee0
- Compound
- Zne0
- Outcome
- grain yielde0
- Direction
- optimume0
- Value
- 12 ppme0
- Qualifier
- appeared minimale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For optimum grain yield, 12 ppm Zn in tissue appeared minimal.”
t0“Maize”
Claim · model-written summary
Maize response to zinc was most probable when soil-extractable zinc was below 1.0 ppm at silking.
- Compound
- Zne0
- Outcome
- response to Zn applicatione0
- Direction
- most probablee0
- Value
- less than 1.0 ppme0
- Qualifier
- when measured at silking timee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize response to Zn application was most probable when the 0.1 N HCl soil‐extractable Zn was less than 1.0 ppm when measured at silking time.”
The same questions in other papers
zinc atom · yield · Zea mays (maize)Results differ
390 papers in the same direction as this paper · 47 in the opposite direction · 3 reporting no difference from an alternative
- negative
- positive
- negative
437 papers more in this group
See all 441 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.