Paper · 2013 · Ciencia e investigación agraria

Chemical composition of corn and sorghum grains cultivated in Oxisol according to different application methods and doses of zinc. Cien. Inv. Agr. 40(1):97-108.

Aline Peregrina Puga; Renato de Mello Prado; Ben‐Hur Mattiuz; et al.

6
claims
8
verbatim quotes
0
citations
2
research areas
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Not open access

Abstract

In general, tropical soils present low concentrations of zinc (Zn), and the deficiency of Zn is recognized as a world nutritional problem for cereal production and human beings. Therefore, the main goal of this study was to assess the effects of different methods of Zn application on the quality of corn and sorghum grains grown in Oxisol. Two experiments were set up in the experimental area of UNESP (campus of Jaboticabal, Brazil). The following nine treatments were applied: three doses of Zn by banded application (seed furrows), three doses of Zn by incorporation into soil (0-20 cm depth), foliar application, seed application, and control (no Zn applied). The treatments were arranged in randomized blocks with four replicates. The contents of Zn, carbohydrates and proteins were determined for corn and sorghum grains. Regardless of the method, Zn application promoted higher contents of this micronutrient in corn and sorghum grains. The banded application method of Zn in soil promoted greater contents of total carbohydrates, starch and protein in both cultures. The incorporation of Zn into the soil method provided higher contents of soluble carbohydrates in both corn and sorghum grains.Los suelos tropicales, en general, tienen una baja concentracion de zinc (Zn), y la deficiencia de este micronutriente es reconocida como un problema nutricional mundial para la produccion de cereales y para los seres humanos. Asi, el objetivo de este estudio fue evaluar los efectos de diferentes metodos de aplicacion de Zn sobre la calidad del grano de maiz y sorgo. Para esto, se realizaron dos experimentos en el area experimental de FCAV/UNESP, Jaboticabal, Brasil. Se aplicaron nueve tratamientos: tres dosis de Zn aplicadas en forma localizada en los surcos de las semillas, tres dosis de Zn aplicadas en forma incorporada al suelo (0-20 cm de profundidad), una dosis aplicada en forma foliar, y el tratamiento control (sin aplicacion de Zn); dispuestos en un diseno de bloques completos al azar con cuatro repeticiones. Las variables medidas fueron: contenido de Zn, proteinas y carbohidratos en los granos de maiz y sorgo. La adicion de Zn, independientemente del modo, promovio mayores niveles de este micronutriente en los granos de maiz y sorgo. El modo de aplicacion de Zn en el suelo de una forma localizada mostro mayores niveles de carbohidratos, almidon y proteina en las semillas de ambos cultivos. La aplicacion de Zn en el suelo de modo incorporado resulto en altos niveles de carbohidratos solubles en los granos de maiz y sorgo.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc application increased zinc content in corn grains regardless of application method.

Treatment
Zn applicatione0
Outcome
contents of this micronutriente0
Direction
highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Regardless of the method, Zn application promoted higher contents of this micronutrient in corn and sorghum grains”

✓ located verbatim in the source · abstract, characters 829–943 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc application increased zinc content in sorghum grains regardless of application method.

Taxon
sorghumSorghume0
Treatment
Zn applicatione0
Outcome
contents of this micronutriente0
Direction
highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“Regardless of the method, Zn application promoted higher contents of this micronutrient in corn and sorghum grains”

✓ located verbatim in the source · abstract, characters 829–943 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Banded soil zinc application increased total carbohydrates, starch and protein in corn grain.

Treatment
banded application method of Zn in soile0
Outcome
contents of total carbohydrates, starch and proteine0
Direction
greatere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The banded application method of Zn in soil promoted greater contents of total carbohydrates, starch and protein in both cultures”

✓ located verbatim in the source · abstract, characters 945–1074 · show in text ↑
t0

“corn and sorghum grains”

✓ located verbatim in the source · title, characters 24–47 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Banded soil zinc application increased total carbohydrates, starch and protein in sorghum grain.

Taxon
sorghumSorghumt0
Treatment
banded application method of Zn in soile0
Outcome
contents of total carbohydrates, starch and proteine0
Direction
greatere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The banded application method of Zn in soil promoted greater contents of total carbohydrates, starch and protein in both cultures”

✓ located verbatim in the source · abstract, characters 945–1074 · show in text ↑
t0

“corn and sorghum grains”

✓ located verbatim in the source · title, characters 24–47 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil incorporation of zinc increased soluble carbohydrates in corn grain.

Treatment
incorporation of Zn into the soile0
Outcome
contents of soluble carbohydratese0
Direction
highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The incorporation of Zn into the soil method provided higher contents of soluble carbohydrates in both corn and sorghum grains”

✓ located verbatim in the source · abstract, characters 1076–1202 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil incorporation of zinc increased soluble carbohydrates in sorghum grain.

Taxon
sorghumSorghume0
Treatment
incorporation of Zn into the soile0
Outcome
contents of soluble carbohydratese0
Direction
highere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The incorporation of Zn into the soil method provided higher contents of soluble carbohydrates in both corn and sorghum grains”

✓ located verbatim in the source · abstract, characters 1076–1202 · show in text ↑

zinc atom · quality: protein · Zea mays (maize)Results differ

42 papers: 37 positive, 5 negative or no effect

36 papers in the same direction as this paper · 5 in the opposite direction

  1. no effect
  2. negative
  3. no effect

38 papers more in this group

See all 42 papers →

zinc atom · molecular: metabolites · SorghumPositive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

zinc atom · molecular: metabolites · Zea mays (maize)Positive and negative results

44 papers: 36 positive, 8 negative or no effect

35 papers in the same direction as this paper · 8 in the opposite direction

  1. negative
  2. negative
  3. no effect

40 papers more in this group

See all 44 papers →

zinc atom · quality: sugar starch · SorghumResults agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

zinc atom · quality: protein · SorghumResults agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

zinc atom · quality: sugar starch · Zea mays (maize)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 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.