Paper · 1977 · Journal of the American Society for Horticultural Science

The Influence of Potassium Applications and Nematocides on the Potassium Nutrition of ‘Valencia’ Orange Trees on Replant Citrus Soil1

P. S. Fouche; D. H. Bester; G. H. Veldman

4
claims
6
verbatim quotes
4
citations
4
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Soil application of K 2 SO 4 with a nematocide, Aldicarb, significantly increased the level of K and fruit size of ‘Valencia’ orange trees ( Citrus sinensis (L.) Osbeck) growing on soils previously planted to citrus. Foliar applications of KNO 3 , KCl, and K 2 SO 4 were less effective. Aldicarb, where applied singly every third year, only controlled the citrus nematode Tylenchulus semipenetrans Cobb for one year following it's application.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 resultpositivesignificant (as stated)measured

Claim · model-written summary

Soil K 2 SO 4 with Aldicarb significantly increased K levels in Valencia orange trees.

Taxon
Citrus sinensis (L.) OsbeckCitrus sinensise0
Material
Valenciae0
Treatment
Soil application of K 2 SO 4 with a nematocide, Aldicarbe0
Outcome
level of Ke0
Direction
increasede0
Setting
soils previously planted to citruse0

Not reportedComparator

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Soil application of K 2 SO 4 with a nematocide, Aldicarb, significantly increased the level of K and fruit size of ‘Valencia’ orange trees ( Citrus sinensis (L.) Osbeck) growing on soils previously planted to citrus”

✓ located verbatim in the source · abstract, characters 9–224 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Soil K 2 SO 4 with Aldicarb significantly increased fruit size of Valencia orange trees.

Taxon
Citrus sinensis (L.) OsbeckCitrus sinensise0
Material
Valenciae0
Treatment
Soil application of K 2 SO 4 with a nematocide, Aldicarbe0
Outcome
fruit sizee0
Direction
increasede0

Not reportedComparator

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Soil application of K 2 SO 4 with a nematocide, Aldicarb, significantly increased the level of K and fruit size of ‘Valencia’ orange trees ( Citrus sinensis (L.) Osbeck) growing on soils previously planted to citrus”

✓ located verbatim in the source · abstract, characters 9–224 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Foliar KNO 3, KCl and K 2 SO 4 applications were less effective.

Taxon
Orange Treest0
Treatment
Foliar applications of KNO 3 , KCl, and K 2 SO 4e0
Outcome
less effectivee0
Direction
less effectivee0

Not reportedComparator

Verbatim

e0

“Foliar applications of KNO 3 , KCl, and K 2 SO 4 were less effective”

✓ located verbatim in the source · abstract, characters 226–294 · show in text ↑
t0

“Orange Trees”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Aldicarb alone every third year controlled citrus nematodes for only one year after application.

Taxon
Orange Treest0
Treatment
Aldicarb, where applied singly every third yeare0
Interactor
Tylenchulus semipenetrans CobbTylenchulus semipenetranse0pest
Outcome
citrus nematodee0
Direction
controllede0
Qualifier
for one year following it's applicatione0

Not reportedComparator

Verbatim

e0

“Aldicarb, where applied singly every third year, only controlled the citrus nematode Tylenchulus semipenetrans Cobb for one year following it's application”

✓ located verbatim in the source · abstract, characters 296–451 · show in text ↑
t0

“Orange Trees”

✓ located verbatim in the source · title, characters 97–109 · show in text ↑

aldicarb · Tylenchulus semipenetrans · Citrus sinensis (sweet orange)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

aldicarb · yield · Citrus sinensis (sweet orange)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

potassium sulfate · yield · Citrus sinensis (sweet orange)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

application · yield · Citrus sinensis (sweet orange)Positive and negative results

77 papers: 65 positive, 12 negative or no effect

64 papers in the same direction as this paper · 12 in the opposite direction

  1. no effect
  2. no effect
  3. negative

73 papers more in this group

See all 77 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.