Abstract
Nitrogen (N) is the most required nutrient to corn crop (Zea mays L.), and its cost is a significant stake in the profitability of second crop corn. This work aimed to determinate the economic viability of the usage of several sources and rates of nitrogen in the productivity of second crop corn in no-till system. The experiment was developed in an Oxisol, during the agricultural years of 2007 and 2008. Treatments included three N sources (Ammonium sulfonitrate with nitrification inhibitor, ammonium sulfate, and urea) in five N rates (0, 50, 100, 150 and 200 kg ha -1 ), totally applied in the coverage, in six leaf stage (V6). The economic analysis considered the N fertilization costs and the yield additions provided by the N fertilization handling for each relative treatment. The nitrogen fertilization at rate the 100 as ammonium sulfate and 150 kg ha -1 of N or ureia provided the greatest profitability. The ammonium sulfonitrate with nitrification inhibitor provided low profitability and the ammonium sulphate provided the greatest profitabilities with the use of smaller doses of N (150 kg ha -1 of N) compared to urea.
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Claims 4
Claim · model-written summary
Nitrogen at 100 kg ha-1 as ammonium sulfate gave the greatest profitability of second crop corn.
- Treatment
- nitrogen fertilization at rate the 100 as ammonium sulfatee2
- Outcome
- profitabilitye2
- Direction
- greateste2
- Setting
- Oxisole1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) is the most required nutrient to corn crop (Zea mays L.)”
e1“The experiment was developed in an Oxisol”
e2“The nitrogen fertilization at rate the 100 as ammonium sulfate and 150 kg ha -1 of N or ureia provided the greatest profitability”
Claim · model-written summary
Nitrogen at 150 kg ha-1 as urea gave the greatest profitability of second crop corn.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) is the most required nutrient to corn crop (Zea mays L.)”
e1“The experiment was developed in an Oxisol”
e2“The nitrogen fertilization at rate the 100 as ammonium sulfate and 150 kg ha -1 of N or ureia provided the greatest profitability”
Claim · model-written summary
Ammonium sulfonitrate with nitrification inhibitor gave low profitability in second crop corn.
- Treatment
- ammonium sulfonitrate with nitrification inhibitore2
- Outcome
- profitabilitye2
- Direction
- lowe2
- Setting
- Oxisole1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) is the most required nutrient to corn crop (Zea mays L.)”
e1“The experiment was developed in an Oxisol”
e2“The ammonium sulfonitrate with nitrification inhibitor provided low profitability”
Claim · model-written summary
Ammonium sulphate gave the greatest profitability with smaller N doses (150 kg ha-1) than urea.
- Treatment
- ammonium sulphatee2
- Outcome
- profitabilitiese2
- Direction
- greateste2
- Qualifier
- with the use of smaller doses of N (150 kg ha -1 of N)e2
- Comparator
- ureae2
- Setting
- Oxisole1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen (N) is the most required nutrient to corn crop (Zea mays L.)”
e1“The experiment was developed in an Oxisol”
e2“the ammonium sulphate provided the greatest profitabilities with the use of smaller doses of N (150 kg ha -1 of N) compared to urea”
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