Abstract
Nitrogen is the most demanded element with the most complex management and with the highest responses in productivity in the corn crop, of the principal source of nitrogen supplies, but the urea is inefficient due to its volatilization. The objective of this work was to evaluate the agronomic performance and the efficiency of the urease inhibitor in formulations containing urea, applied in five different commercial corn hybrids in Sinop - MT. The experimental design was in randomized blocks, in a 3 x 5 factorial scheme with three replications. The first factor consisted of three cover fertilizations: control (without application of fertilizer); fertilization with 250 kg ha-1 of urea and fertilization with 250 kg ha-1 of urea with the presence of the urease inhibitor (UREMAX®) NBPT. The second factor was five corn hybrids: 2B433, DKB255, DKB335, NS45 and SYN522. It was found that all hybrids had greater growth and productivity when they received the urease inhibitor, in relation to the treatment without coverage. The hybrids DKB 255, 2B433 and SYN 522, the treatment with UREMAX® reached the highest productivity. The most prominent hybrid in productivity was DKB 255, which reached 9600 kg ha-1, with UREMAX® in cover fertilization, about 31% more than the treatment without urea coverage, and with gains of 18% in relation to urea.
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Claims 6
Claim · model-written summary
All corn hybrids had greater growth with urease inhibitor than without cover fertilization.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- urease inhibitore0
- Outcome
- growthe0
- Direction
- greatere0
- Comparator
- treatment without coveragee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all hybrids had greater growth and productivity when they received the urease inhibitor, in relation to the treatment without coverage”
t0“corn hybrids”
Claim · model-written summary
All corn hybrids had greater productivity with urease inhibitor than without cover fertilization.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- urease inhibitore0
- Outcome
- productivitye0
- Direction
- greatere0
- Comparator
- treatment without coveragee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all hybrids had greater growth and productivity when they received the urease inhibitor, in relation to the treatment without coverage”
t0“corn hybrids”
Claim · model-written summary
DKB 255, 2B433 and SYN 522 achieved the highest productivity with UREMAX®.
- Taxon
- cornZea mays subsp. mayst0
- Material
- DKB 255, 2B433 and SYN 522e0
- Treatment
- UREMAX®e0
- Outcome
- productivitye0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hybrids DKB 255, 2B433 and SYN 522, the treatment with UREMAX® reached the highest productivity”
t0“corn hybrids”
Claim · model-written summary
DKB 255 yielded 9600 kg ha-1 with UREMAX® cover fertilization.
- Taxon
- cornZea mays subsp. mayst0
- Material
- DKB 255e0
- Treatment
- UREMAX® in cover fertilizatione0
- Outcome
- productivitye1
- Value
- 9600 kg ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DKB 255, which reached 9600 kg ha-1, with UREMAX® in cover fertilization”
e1“all hybrids had greater growth and productivity when they received the urease inhibitor, in relation to the treatment without coverage”
t0“corn hybrids”
Claim · model-written summary
DKB 255 productivity with UREMAX® was about 31% higher than without urea coverage.
- Taxon
- cornZea mays subsp. mayst0
- Material
- DKB 255e0
- Treatment
- UREMAX® in cover fertilizatione0
- Outcome
- productivitye1
- Direction
- moree0
- Value
- 31%e0
- Comparator
- treatment without urea coveragee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DKB 255, which reached 9600 kg ha-1, with UREMAX® in cover fertilization, about 31% more than the treatment without urea coverage”
e1“all hybrids had greater growth and productivity when they received the urease inhibitor, in relation to the treatment without coverage”
t0“corn hybrids”
Claim · model-written summary
DKB 255 productivity with UREMAX® gained 18% relative to urea.
- Taxon
- cornZea mays subsp. mayst0
- Material
- DKB 255e0
- Treatment
- UREMAX® in cover fertilizatione0
- Outcome
- productivitye1
- Direction
- gainse0
- Value
- 18%e0
- Comparator
- ureae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DKB 255, which reached 9600 kg ha-1, with UREMAX® in cover fertilization, about 31% more than the treatment without urea coverage, and with gains of 18% in relation to urea”
e1“all hybrids had greater growth and productivity when they received the urease inhibitor, in relation to the treatment without coverage”
t0“corn hybrids”
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