Abstract
In order to study the effect of nitrogen sources upon the yields and nutrition of corn for silage and on the chemical attributes of a Cambisol, at Northern of Minas Gerais, Brazil, under calcareous water. The cultivar used was Decalb 390®, with a spacing of 0,8 m x 0,2 m. The base fertilization consisted in 330 kg ha-1 of formulation 4-30-10 and 50 kg ha-1 of FTE-BR12. Two equal dosages of 40 kg ha-1 of K2O, in the KCl form, were applied 45 and 60 days after corn sowing (DAS), phenologic phases V7 and V10 . The experiment it was realized in a randomized blocks design with six repetitions, been the treatments constituted by: ammonium sulfate (topdressing manuring), urea (topdressing manuring), Crotalaria juncea (before de maize crop). The Nfertilizers were applied parceled into three equal dosages of 40 kg ha-1, 30 DAS, with 15 days between fertilizations. The corn yields increased above control treatment average in 33, 27 and 14 t ha-1 with ammonium sulfate and urea topdressing and with C. juncea pre cropped, respectively. The ammonium sulfate use allows better recovery rate of the N applied by the extractor and higher uptake of Fe, Mn, Zn and S by the corn plants.
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Claims 5
Claim · model-written summary
Ammonium sulfate topdressing raised corn yield by 33 t ha-1 above the control treatment average.
- Taxon
- corn
Zea mays subsp. mayse3 - Material
- Decalb 390®e2
- Treatment
- ammonium sulfatee3
- Outcome
- corn yieldse3
- Direction
- increasede3
- Value
- 33e3
- Qualifier
- under calcareous watere1
- Comparator
- control treatment averagee3
- Setting
- Northern of Minas Gerais, Brazile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In order to study the effect of nitrogen sources upon the yields and nutrition of corn for silage and on the chemical attributes of a Cambisol, at Northern of Minas Gerais, Brazil, under calcareous water”
e2“The cultivar used was Decalb 390®”
e3“The corn yields increased above control treatment average in 33, 27 and 14 t ha-1 with ammonium sulfate and urea topdressing and with C. juncea pre cropped, respectively”
Claim · model-written summary
Urea topdressing raised corn yield by 27 t ha-1 above the control treatment average.
- Taxon
- cornZea mays subsp. mayse3
- Material
- Decalb 390®e2
- Treatment
- ureae3
- Outcome
- corn yieldse3
- Direction
- increasede3
- Value
- 27e3
- Qualifier
- under calcareous watere1
- Comparator
- control treatment averagee3
- Setting
- Northern of Minas Gerais, Brazile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In order to study the effect of nitrogen sources upon the yields and nutrition of corn for silage and on the chemical attributes of a Cambisol, at Northern of Minas Gerais, Brazil, under calcareous water”
e2“The cultivar used was Decalb 390®”
e3“The corn yields increased above control treatment average in 33, 27 and 14 t ha-1 with ammonium sulfate and urea topdressing and with C. juncea pre cropped, respectively”
Claim · model-written summary
Pre-cropping C. juncea raised corn yield by 14 t ha-1 above the control treatment average.
- Taxon
- cornZea mays subsp. mayse3
- Material
- Decalb 390®e2
- Treatment
- C. junceae3
- Outcome
- corn yieldse3
- Direction
- increasede3
- Value
- 14e3
- Qualifier
- under calcareous watere1
- Comparator
- control treatment averagee3
- Setting
- Northern of Minas Gerais, Brazile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In order to study the effect of nitrogen sources upon the yields and nutrition of corn for silage and on the chemical attributes of a Cambisol, at Northern of Minas Gerais, Brazil, under calcareous water”
e2“The cultivar used was Decalb 390®”
e3“The corn yields increased above control treatment average in 33, 27 and 14 t ha-1 with ammonium sulfate and urea topdressing and with C. juncea pre cropped, respectively”
Claim · model-written summary
Ammonium sulfate gave a better recovery rate of the applied nitrogen than the other sources.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- ammonium sulfatee4
- Outcome
- recovery rate of the N appliede4
- Direction
- bettere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In order to study the effect of nitrogen sources upon the yields and nutrition of corn for silage and on the chemical attributes of a Cambisol, at Northern of Minas Gerais, Brazil, under calcareous water”
e4“The ammonium sulfate use allows better recovery rate of the N applied by the extractor”
Claim · model-written summary
Ammonium sulfate gave higher uptake of Fe, Mn, Zn and S by corn plants.
- Taxon
- cornZea mays subsp. mayse5
- Treatment
- ammonium sulfatee4
- Outcome
- uptake of Fe, Mn, Zn and Se5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The ammonium sulfate use allows better recovery rate of the N applied by the extractor”
e5“higher uptake of Fe, Mn, Zn and S by the corn plants”
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See all 2,185 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.