Abstract
The aim of this study was to evaluate the N losses due to volatilization at different rates of common urea, polymer coated urea and urease inhibitor-treated urea in the out-of-season corn, using semi-open static collectors. The treatments consisted of N levels on side-dressing fertilization with urea in different treatments: (a) control (without N), (b) urea 40 kg ha-1 N, (c) urea 80 kg ha-1 N, (d) polymer coated urea 40 kg ha-1 N, (e) polymer coated urea 80 kg ha-1 N and (f) urea with the urease inhibitor (UI) N 80 kg ha-1 N. The results showed that the treatments with polymer coated urea and with urease inhibitor-treated urea reduced the volatilization of N around 50 % compared to common urea, either in the first and the second N side-dressing fertilizations. Thus, they demonstrate that the polymer coat and the urease inhibitors were effective in reducing the volatilization of urea N applied in coverage, which resulted in higher productivity. There was also increasing urease activity in the treatments with application of common urea.
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Claims 5
Claim · model-written summary
Polymer coated urea reduced nitrogen volatilization by around 50 % compared with common urea in both side dressings.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- polymer coated ureae0
- Outcome
- volatilization of Ne0
- Direction
- reducede0
- Value
- 50 %e0
- Qualifier
- first and the second N side-dressing fertilizationse0
- Comparator
- common ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatments with polymer coated urea and with urease inhibitor-treated urea reduced the volatilization of N around 50 % compared to common urea, either in the first and the second N side-dressing fertilizations.”
t0“corn”
Claim · model-written summary
Urease inhibitor treated urea reduced nitrogen volatilization by around 50 % compared with common urea in both side dressings.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- urease inhibitor-treated ureae0
- Outcome
- volatilization of Ne0
- Direction
- reducede0
- Value
- 50 %e0
- Qualifier
- first and the second N side-dressing fertilizationse0
- Comparator
- common ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatments with polymer coated urea and with urease inhibitor-treated urea reduced the volatilization of N around 50 % compared to common urea, either in the first and the second N side-dressing fertilizations.”
t0“corn”
Claim · model-written summary
The polymer coat increased corn productivity according to the authors.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- polymer coate0
- Outcome
- productivitye0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the polymer coat and the urease inhibitors were effective in reducing the volatilization of urea N applied in coverage, which resulted in higher productivity.”
t0“corn”
Claim · model-written summary
Urease inhibitors increased corn productivity according to the authors.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- urease inhibitorse0
- Outcome
- productivitye0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the polymer coat and the urease inhibitors were effective in reducing the volatilization of urea N applied in coverage, which resulted in higher productivity.”
t0“corn”
Claim · model-written summary
Common urea application increased urease activity.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- application of common ureae0
- Outcome
- urease activitye0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was also increasing urease activity in the treatments with application of common urea.”
t0“corn”
The same questions in other papers
EC 3.5.1.5 (urease) inhibitor · yield · Zea mays (maize)Positive and negative results
11 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
11 papers more in this group
See all 15 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.