Paper · 1994 · HortScience

004 WINTER COVER CROPS FOR WEED CONTROL IN SUSTAINABLE VEGETABLE PRODUCTION

Vasey N. Mwaja; John B. Masiunas

6
claims
8
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

A three-year study determined the effect of winter cover crops on weeds and vegetable crops in a vegetable production system. Winter rye and hairy vetch were interseeded in the fall of 1990, 1991 and 1992 at 112 and 34-kg ha -1 , respectively. The cover crops were killed by ether applying glyphosate at 1.1 kg a.i ha -1 [reduced tillage(RT)] or mowing and disking the cover crop (Disked). The conventional tillage (CT) was bare ground with a preplant incorporated application of 0.84 kg a.i ha -1 of trifluralin. During the three years, the greatest snap bean yields were in the CT; total yields of cabbage and tomato varied between the years; and were not affected by management systems. Weed control was similar in the RT and CT treatments during the three years. Disked cover crop treatments tended to have greater weed numbers than either RT or CT treatments.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Conventional tillage gave the greatest snap bean yields over three years.

Taxon
snap beane0
Treatment
CTe0
Outcome
snap bean yieldse0
Direction
greateste0

Not reportedComparator

Verbatim

e0

“During the three years, the greatest snap bean yields were in the CT”

✓ located verbatim in the source · abstract, characters 514–582 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cabbage yields varied between years.

Outcome
total yieldse0
Direction
variede0
Setting
the yearse0

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“total yields of cabbage and tomato varied between the years”

✓ located verbatim in the source · abstract, characters 584–643 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Tomato yields varied between years.

Outcome
total yieldse0
Direction
variede0
Setting
the yearse0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“total yields of cabbage and tomato varied between the years”

✓ located verbatim in the source · abstract, characters 584–643 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cabbage and tomato yields were unaffected by management systems.

Treatment
management systemse0
Outcome
total yieldse0
Direction
not affectede0

Not reportedComparator

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

Brassica oleracea var. capitata
Brassica oleracea var. capitata · TaxonThamizhpparithi Maari · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“total yields of cabbage and tomato varied between the years; and were not affected by management systems”

✓ located verbatim in the source · abstract, characters 584–688 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Weed control was similar under reduced and conventional tillage.

Taxon
VEGETABLEt0
Treatment
RTe0
Outcome
Weed controle0
Direction
similare0
Comparator
CTe0

Verbatim

e0

“Weed control was similar in the RT and CT treatments during the three years”

✓ located verbatim in the source · abstract, characters 690–765 · show in text ↑
t0

“VEGETABLE PRODUCTION”

✓ located verbatim in the source · title, characters 55–75 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Disked cover crops tended to have more weeds than reduced or conventional tillage.

Taxon
VEGETABLEt0
Treatment
Disked cover crop treatmentse0
Outcome
weed numberse0
Direction
greatere0
Qualifier
tendede0
Comparator
RT or CT treatmentse0

Verbatim

e0

“Disked cover crop treatments tended to have greater weed numbers than either RT or CT treatments”

✓ located verbatim in the source · abstract, characters 767–863 · show in text ↑
t0

“VEGETABLE PRODUCTION”

✓ located verbatim in the source · title, characters 55–75 · show in text ↑

cultivation system · yield · Brassica oleracea (wild cabbage)Positive and negative results

14 papers: 8 positive, 6 negative or no effect

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

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

tillage · yield · Phaseolus vulgaris (common bean)Positive and negative results

64 papers: 41 positive, 23 negative or no effect

40 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

60 papers more in this group

See all 64 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.