Paper · 2022 · Ciência e Agrotecnologia

Planting position and application of different doses of nitrogen at different times on cassava

Jorge González Aguilera; Bruna Izabel Krewer; Newton Júnior Ribeiro; et al.

4
claims
8
verbatim quotes
0
citations
1
research areas
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Open access · cc-by

Abstract

ABSTRACT In this study, we evaluated the impact of two planting positions of cassava cuttings, cv. ‘Vassourinha’, combined with different times and doses of nitrogen application, on productivity and other agronomic traits. In the experiment, the treatment was completely randomized using a 2 × 3 × 4 factorial scheme with two positions of the cuttings [horizontal (PH) and vertical (PV)], three instances of N application (45, 90, and 135 days after planting), and four doses of N (0, 80, 160, and 240 kg ha-1), with six repetitions. We recorded and evaluated the plant height, number of shoots, stem diameter, biomass of the aerial part, number of commercial roots, the total production, and the collection index. The addition of 240 kg ha-1 N and PH increased plant height and stem diameter but did not affect the number of commercial roots, total production, or the collection index. The treatment involving the addition of nitrogen fertilizer 135 days after planting with 240 kg ha-1 N and planting in the PV provided the highest amount of shoot biomass without influencing crop productivity.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

240 kg ha-1 N with horizontal planting increased plant height and stem diameter.

Treatment
240 kg ha-1 N and PHe0
Outcome
plant height and stem diametere0
Direction
increasede0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The addition of 240 kg ha-1 N and PH increased plant height and stem diameter”

✓ located verbatim in the source · abstract, characters 715–792 · show in text ↑
t0

“Planting position and application of different doses of nitrogen at different times on cassava”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The treatment did not affect commercial root number, production or collection index.

Treatment
240 kg ha-1 N and PHe0
Outcome
number of commercial roots, total production, or the collection indexe0
Direction
did not affecte0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The addition of 240 kg ha-1 N and PH increased plant height and stem diameter but did not affect the number of commercial roots, total production, or the collection index.”

✓ located verbatim in the source · abstract, characters 715–886 · show in text ↑
t0

“Planting position and application of different doses of nitrogen at different times on cassava”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Late nitrogen at 240 kg ha-1 N with vertical planting gave the highest shoot biomass.

Treatment
addition of nitrogen fertilizer 135 days after planting with 240 kg ha-1 N and planting in the PVe0
Outcome
shoot biomasse0
Direction
higheste0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The treatment involving the addition of nitrogen fertilizer 135 days after planting with 240 kg ha-1 N and planting in the PV provided the highest amount of shoot biomass without influencing crop productivity.”

✓ located verbatim in the source · abstract, characters 887–1096 · show in text ↑
t0

“Planting position and application of different doses of nitrogen at different times on cassava”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

That treatment did not influence crop productivity.

Treatment
addition of nitrogen fertilizer 135 days after planting with 240 kg ha-1 N and planting in the PVe0
Outcome
crop productivitye0
Direction
without influencinge0

Not reportedComparator

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

Manihot esculenta
Manihot esculenta · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The treatment involving the addition of nitrogen fertilizer 135 days after planting with 240 kg ha-1 N and planting in the PV provided the highest amount of shoot biomass without influencing crop productivity.”

✓ located verbatim in the source · abstract, characters 887–1096 · show in text ↑
t0

“Planting position and application of different doses of nitrogen at different times on cassava”

✓ located verbatim in the source · title, characters 0–94 · show in text ↑

ph · growth · Manihot esculenta (cassava)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

2 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

1 paper more in this group

See all 5 papers →

fertilization · growth · Manihot esculenta (cassava)Positive and negative results

71 papers: 65 positive, 6 negative or no effect

64 papers in the same direction as this paper · 6 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

67 papers more in this group

See all 71 papers →

fertilization · yield · Manihot esculenta (cassava)Positive and negative results

153 papers: 141 positive, 12 negative or no effect

11 papers in the same direction as this paper · 141 in the opposite direction

  1. positive
  2. positive
  3. positive

149 papers more in this group

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ph · yield · Manihot esculenta (cassava)Results agree

4 papers: 0 positive, 4 negative or no effect

3 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative
See all 4 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.