Paper · 2009 · Caatinga

Yield and quality of irrigated sugarcane under covering nitrogen and potassium fertilization.

A. B. da Silva; José Dantas Neto; Carlos Henrique de Azevedo Farias; et al.

4
claims
15
verbatim quotes
2
citations
1
research areas
—
Not open access

Abstract

The objective of this work was to evaluate the effect of different levels of nitrogen and potassium fertilization, applied in covering, on the yield and quality of sugarcane (Saccharum ssp., variety SP716949) under irrigation. The experiment was conducted in an area of the Miriri`s distillery, in the Capim district, PB. The treatments were constituted by four levels of covering fertilization: AC185 kg ha -1 ( 44 kg de N plus 41 kg de K2O), AC2 167 kg ha (86 kg de N plus 81 kg de K2O), AC3 305 kg ha -1 (157 kg de N plus 148 kg de K2O), AC4 458 kg ha -1 (236 kg de N plus 222 kg de K2O), arranged in an experimental design of randomized blocks, with three replications. The analyzed variables were: productivity of stems, percentage of oBrix, Pol and PCC, yield of sugar and alcohol. Among of studied variables, just the productivity of stems was affected significantly (p < 0.05) by the fertilization. The regression analyses revealed that the largest productivity of the stems (108.21 t ha), the maximum percentage of PCC and oBrix (14.35 e 20.40%) and the maximum yield of alcohol (9948 L ha) were obtained with the level of covering fertilization of 458 kg ha (236 kg de N plus 222 kg of K2O).

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Claims 4

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Among the variables studied, only stem productivity of sugarcane was significantly affected by covering nitrogen and potassium fertilization (p < 0.05).

Taxon
sugarcanee0
Treatment
nitrogen and potassium fertilizatione0
Outcome
productivity of stemse1
Qualifier
under irrigatione0
Setting
Capim district, PBe5

Not reportedComparatorDirection

Verbatim

e0

“evaluate the effect of different levels of nitrogen and potassium fertilization, applied in covering, on the yield and quality of sugarcane (Saccharum ssp., variety SP716949) under irrigation”

✓ located verbatim in the source · abstract, characters 34–225 · show in text ↑
e1

“Among of studied variables, just the productivity of stems was affected significantly (p < 0.05) by the fertilization”

✓ located verbatim in the source · abstract, characters 788–905 · show in text ↑
e5

“The experiment was conducted in an area of the Miriri`s distillery, in the Capim district, PB”

✓ located verbatim in the source · abstract, characters 227–320 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The largest sugarcane stem productivity (108.21 t ha) was obtained with covering fertilization of 458 kg ha (236 kg N plus 222 kg K2O).

Taxon
sugarcanee0
Treatment
covering fertilization of 458 kg ha (236 kg de N plus 222 kg of K2O)e3
Outcome
productivity of the stemse2
Direction
largeste2
Value
108.21 t hae2
Setting
Capim district, PBe5

Not reportedComparator

Verbatim

e0

“evaluate the effect of different levels of nitrogen and potassium fertilization, applied in covering, on the yield and quality of sugarcane (Saccharum ssp., variety SP716949) under irrigation”

✓ located verbatim in the source · abstract, characters 34–225 · show in text ↑
e2

“the largest productivity of the stems (108.21 t ha)”

✓ located verbatim in the source · abstract, characters 945–996 · show in text ↑
e3

“obtained with the level of covering fertilization of 458 kg ha (236 kg de N plus 222 kg of K2O)”

✓ located verbatim in the source · abstract, characters 1105–1200 · show in text ↑
e5

“The experiment was conducted in an area of the Miriri`s distillery, in the Capim district, PB”

✓ located verbatim in the source · abstract, characters 227–320 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum percentage of PCC and oBrix (14.35 and 20.40%) was obtained with covering fertilization of 458 kg ha (236 kg N plus 222 kg K2O).

Taxon
sugarcanee0
Treatment
covering fertilization of 458 kg ha (236 kg de N plus 222 kg of K2O)e3
Outcome
percentage of PCC and oBrixe4
Direction
maximume4
Value
14.35 e 20.40%e4
Setting
Capim district, PBe5

Not reportedComparator

Verbatim

e0

“evaluate the effect of different levels of nitrogen and potassium fertilization, applied in covering, on the yield and quality of sugarcane (Saccharum ssp., variety SP716949) under irrigation”

✓ located verbatim in the source · abstract, characters 34–225 · show in text ↑
e3

“obtained with the level of covering fertilization of 458 kg ha (236 kg de N plus 222 kg of K2O)”

✓ located verbatim in the source · abstract, characters 1105–1200 · show in text ↑
e4

“the maximum percentage of PCC and oBrix (14.35 e 20.40%)”

✓ located verbatim in the source · abstract, characters 998–1054 · show in text ↑
e5

“The experiment was conducted in an area of the Miriri`s distillery, in the Capim district, PB”

✓ located verbatim in the source · abstract, characters 227–320 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The maximum sugar alcohol yield (9948 L ha) was obtained with covering fertilization of 458 kg ha (236 kg N plus 222 kg K2O).

Taxon
sugarcanee0
Treatment
covering fertilization of 458 kg ha (236 kg de N plus 222 kg of K2O)e3
Outcome
yield of alcohole6
Direction
maximume6
Value
9948 L hae6
Setting
Capim district, PBe5

Not reportedComparator

Verbatim

e0

“evaluate the effect of different levels of nitrogen and potassium fertilization, applied in covering, on the yield and quality of sugarcane (Saccharum ssp., variety SP716949) under irrigation”

✓ located verbatim in the source · abstract, characters 34–225 · show in text ↑
e3

“obtained with the level of covering fertilization of 458 kg ha (236 kg de N plus 222 kg of K2O)”

✓ located verbatim in the source · abstract, characters 1105–1200 · show in text ↑
e6

“the maximum yield of alcohol (9948 L ha)”

✓ located verbatim in the source · abstract, characters 1059–1099 · show in text ↑
e5

“The experiment was conducted in an area of the Miriri`s distillery, in the Capim district, PB”

✓ located verbatim in the source · abstract, characters 227–320 · show in text ↑

potassium · yield · Saccharum officinarum (sugarcane)Results differ

57 papers: 50 positive, 7 negative or no effect

49 papers in the same direction as this paper · 7 in the opposite direction

  1. no effect
  2. negative
  3. no effect

53 papers more in this group

See all 57 papers →

fertilization · yield · Saccharum officinarum (sugarcane)Positive and negative results

346 papers: 312 positive, 34 negative or no effect

311 papers in the same direction as this paper · 28 in the opposite direction · 6 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

342 papers more in this group

See all 346 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.