Paper · 1999

Effect of weed control and gypsum application on uptake of N,P, Ca and S by groundnut (Arachis hypogaea) and weeds

M. Devekumar; Gajendra Giri

5
claims
10
verbatim quotes
1
citations
3
research areas
—
Not open access

Abstract

In a field experiment during kharif 1992 and 1993 in New Delhi, India, groundnuts cv. ICGS 1 were given 1 hand weeding at 15 days after sowing (DAS) or 2 hand weedings, at 15 and 30 DAS or were not weeded. They were given 200 kg gypsum/ha at sowing (S) or flowering (F) or 200 or 400 kg in 2 equal splits at S and F, or 36 kg elemental S/ha at S. Weed dry weight and weed N and P uptake generally decreased with increasing weeding, while groundnut pod yield and N, P, Ca and S uptake increased. Gypsum and S treatments had no effect on weeds. Split application of 200 or 400 kg gypsum/ha significantly increased uptake of N, P, Ca and S by groundnuts

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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 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand weeding decreased weed dry weight and weed N and P uptake in groundnut plots.

Taxon
groundnutsArachis hypogaeae0
Material
ICGS 1e0
Treatment
hand weedinge0
Interactor
weede1weed
Outcome
Weed dry weight and weed N and P uptakee1
Direction
decreasede1
Comparator
not weedede0
Setting
New Delhi, Indiae0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“In a field experiment during kharif 1992 and 1993 in New Delhi, India, groundnuts cv. ICGS 1 were given 1 hand weeding at 15 days after sowing (DAS) or 2 hand weedings, at 15 and 30 DAS or were not weeded”

✓ located verbatim in the source · abstract, characters 0–204 · show in text ↑
e1

“Weed dry weight and weed N and P uptake generally decreased with increasing weeding, while groundnut pod yield and N, P, Ca and S uptake increased”

✓ located verbatim in the source · abstract, characters 347–493 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand weeding increased groundnut pod yield.

Taxon
groundnutsArachis hypogaeae0
Material
ICGS 1e0
Treatment
hand weedinge0
Outcome
groundnut pod yielde1
Direction
increasede1
Comparator
not weedede0
Setting
New Delhi, Indiae0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“In a field experiment during kharif 1992 and 1993 in New Delhi, India, groundnuts cv. ICGS 1 were given 1 hand weeding at 15 days after sowing (DAS) or 2 hand weedings, at 15 and 30 DAS or were not weeded”

✓ located verbatim in the source · abstract, characters 0–204 · show in text ↑
e1

“Weed dry weight and weed N and P uptake generally decreased with increasing weeding, while groundnut pod yield and N, P, Ca and S uptake increased”

✓ located verbatim in the source · abstract, characters 347–493 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Hand weeding increased groundnut N, P, Ca and S uptake.

Taxon
groundnutsArachis hypogaeae0
Material
ICGS 1e0
Treatment
hand weedinge0
Outcome
N, P, Ca and S uptakee1
Direction
increasede1
Comparator
not weedede0
Setting
New Delhi, Indiae0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“In a field experiment during kharif 1992 and 1993 in New Delhi, India, groundnuts cv. ICGS 1 were given 1 hand weeding at 15 days after sowing (DAS) or 2 hand weedings, at 15 and 30 DAS or were not weeded”

✓ located verbatim in the source · abstract, characters 0–204 · show in text ↑
e1

“Weed dry weight and weed N and P uptake generally decreased with increasing weeding, while groundnut pod yield and N, P, Ca and S uptake increased”

✓ located verbatim in the source · abstract, characters 347–493 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Gypsum and sulfur treatments had no effect on weeds in groundnut plots.

Taxon
groundnutsArachis hypogaeae0
Material
ICGS 1e0
Treatment
Gypsum and S treatmentse2
Interactor
weedse2weed
Outcome
weedse2
Direction
no_changeinferrede2
Setting
New Delhi, Indiae0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“In a field experiment during kharif 1992 and 1993 in New Delhi, India, groundnuts cv. ICGS 1 were given 1 hand weeding at 15 days after sowing (DAS) or 2 hand weedings, at 15 and 30 DAS or were not weeded”

✓ located verbatim in the source · abstract, characters 0–204 · show in text ↑
e2

“Gypsum and S treatments had no effect on weeds”

✓ located verbatim in the source · abstract, characters 495–541 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Split application of 200 or 400 kg gypsum/ha significantly increased N, P, Ca and S uptake by groundnuts.

Taxon
groundnutsArachis hypogaeae3
Material
ICGS 1e0
Treatment
Split application of 200 or 400 kg gypsum/hae3
Outcome
uptake of N, P, Ca and Se3
Direction
increasede3
Setting
New Delhi, Indiae0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“In a field experiment during kharif 1992 and 1993 in New Delhi, India, groundnuts cv. ICGS 1 were given 1 hand weeding at 15 days after sowing (DAS) or 2 hand weedings, at 15 and 30 DAS or were not weeded”

✓ located verbatim in the source · abstract, characters 0–204 · show in text ↑
e3

“Split application of 200 or 400 kg gypsum/ha significantly increased uptake of N, P, Ca and S by groundnuts”

✓ located verbatim in the source · abstract, characters 543–650 · show in text ↑

sulfur atom · weed · Arachis hypogaea (peanut)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 papers →

lime · nutrient: content · Arachis hypogaea (peanut)Results differ

46 papers: 39 positive, 7 negative or no effect

38 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

42 papers more in this group

See all 46 papers →

herbicide · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

15 papers: 11 positive, 4 negative or no effect

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

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

11 papers more in this group

See all 15 papers →

herbicide · weed · Arachis hypogaea (peanut)Positive and negative results

131 papers: 119 positive, 12 negative or no effect

118 papers in the same direction as this paper · 9 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

127 papers more in this group

See all 131 papers →

herbicide · yield · Arachis hypogaea (peanut)Positive and negative results

230 papers: 172 positive, 58 negative or no effect

171 papers in the same direction as this paper · 51 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

226 papers more in this group

See all 230 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.