Paper · 2001

MOLASSES SOIL AMENDMENT FOR CROP IMPROVEMENT AND NEMATODE MANAGEMENT

S. Schenck

8
claims
13
verbatim quotes
10
citations
3
research areas
—
Not open access

Abstract

Summary Molasses was applied to soil through sprinkler irrigation system or by overhead boom sprayer. In a papaya plantation on Maui where high and damaging populations of reniform nematodes had caused a reduction in fruit yield and quality, the molasses applications lowered nematode soil populations and resulted in marked improvement in the tree growth and harvestable fruit. When applied to Chinese cabbage, there was a decrease in the numbers of Heterodera nematode cysts following harvest. Preplant applications of molasses to onions improved plant color and onion yield although no difference in soil nematode populations or in cyst number was observed. Molasses soil amendments supply carbohydrates and alter the C/N ratio. This affects the soil microbial ecology, usually resulting in lowered populations of plant parasitic nematodes as well as having other favorable effects on plant growth. The specific mechanisms involved are not well understood and vary with the crop, soil conditions, and nematode species present.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Molasses lowered soil reniform nematode populations in papaya plantation.

Taxon
papayaCarica papayae0
Treatment
molasses applicationse0
Interactor
reniform nematodese0peste1
Outcome
reniform nematodese0
Direction
lowerede0
Setting
Mauie0

Not reportedComparator

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

Carica papaya
Carica papaya · TaxonCarlquist, Sherwin John, 1930-2021 · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In a papaya plantation on Maui where high and damaging populations of reniform nematodes had caused a reduction in fruit yield and quality, the molasses applications lowered nematode soil populations”

✓ located verbatim in the source · abstract, characters 102–301 · show in text ↑
e1

“reniform nematodes had caused”

✓ located verbatim in the source · abstract, characters 172–201 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Molasses markedly improved papaya tree growth and harvestable fruit.

Taxon
papayaCarica papayae0
Treatment
molasses applicationse0
Interactor
reniform nematodese0peste1
Outcome
tree growth and harvestable fruite0
Direction
improvemente0
Setting
Mauie0

Not reportedComparator

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

Carica papaya
Carica papaya · TaxonCarlquist, Sherwin John, 1930-2021 · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In a papaya plantation on Maui where high and damaging populations of reniform nematodes had caused a reduction in fruit yield and quality, the molasses applications lowered nematode soil populations and resulted in marked improvement in the tree growth and harvestable fruit”

✓ located verbatim in the source · abstract, characters 102–377 · show in text ↑
e1

“reniform nematodes had caused”

✓ located verbatim in the source · abstract, characters 172–201 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Molasses decreased postharvest Heterodera cyst numbers in Chinese cabbage.

Treatment
appliede0
Interactor
HeteroderaHeteroderae0peste1
Outcome
numbers of Heterodera nematode cystse0
Direction
decreasee0
Qualifier
following harveste0

Not reportedComparator

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

Brassica rapa subsp. pekinensis
Brassica rapa subsp. pekinensis · Taxondekochan · Public domain · Wikimedia Commons ↗
Heterodera
Heterodera · Interactor · picture of the genus (one of its species)Agricultural Research Service · Public domain · Wikimedia Commons ↗

Verbatim

e0

“When applied to Chinese cabbage, there was a decrease in the numbers of Heterodera nematode cysts following harvest”

✓ located verbatim in the source · abstract, characters 379–494 · show in text ↑
e1

“Heterodera nematode cysts”

✓ located verbatim in the source · abstract, characters 451–476 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preplant molasses improved onion plant color.

Taxon
onionsAllium cepae0
Treatment
Preplant applications of molassese0
Outcome
plant colore0
Direction
improvede0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Preplant applications of molasses to onions improved plant color and onion yield”

✓ located verbatim in the source · abstract, characters 496–576 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preplant molasses improved onion yield.

Taxon
onionsAllium cepae0
Treatment
Preplant applications of molassese0
Outcome
onion yielde0
Direction
improvede0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Preplant applications of molasses to onions improved plant color and onion yield”

✓ located verbatim in the source · abstract, characters 496–576 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Preplant molasses showed no difference in onion soil nematode populations or cyst numbers.

Taxon
onionsAllium cepae0
Treatment
Preplant applications of molassese0
Interactor
nematodeNematodae0peste1
Outcome
soil nematode populations or in cyst numbere0
Direction
no differencee0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Preplant applications of molasses to onions improved plant color and onion yield although no difference in soil nematode populations or in cyst number was observed”

✓ located verbatim in the source · abstract, characters 496–659 · show in text ↑
e1

“soil nematode populations or in cyst number”

✓ located verbatim in the source · abstract, characters 603–646 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Molasses soil amendments supply carbohydrates and alter the C/N ratio.

Treatment
Molasses soil amendmentse0
Outcome
supply carbohydrates and alter the C/N ratioe0

Not reportedTaxon

Verbatim

e0

“Molasses soil amendments supply carbohydrates and alter the C/N ratio”

✓ located verbatim in the source · abstract, characters 661–730 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors associate molasses-driven soil microbial changes with lower plant-parasitic nematode populations and favorable plant growth, with mechanisms unresolved.

Taxon
plante0
Interactor
plant parasitic nematodese0peste1
Outcome
lowered populations of plant parasitic nematodese0
Qualifier
soil microbial ecologye0

Verbatim

e0

“This affects the soil microbial ecology, usually resulting in lowered populations of plant parasitic nematodes as well as having other favorable effects on plant growth. The specific mechanisms involved are not well understood and vary with the crop, soil conditions, and nematode species present”

✓ located verbatim in the source · abstract, characters 732–1028 · show in text ↑
e1

“plant parasitic nematodes”

✓ located verbatim in the source · abstract, characters 817–842 · show in text ↑

molasses · yield · Allium cepa (onion)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
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.