Paper · 2000 · Weed Technology

Alternative Ways to Control Weeds Between Rows in Weeded Check Plots in Corn (Zea mays) and Soybean (Glycine max)1

WILLIAM W. DONALD

4
claims
10
verbatim quotes
10
citations
2
research areas
—
Not open access

Abstract

Weeded check plots are an integral part of most weed control experiments. They provide a measure of the maximum crop yield without weed competition in a given site-year environment. The traditional way to create weeded check plots is to hoe and pull weeds by hand in the row and hoe weeds between rows. But erratic heavy rainfall can prevent timely hoeing. The objective of this experiment was to compare faster, less-laborious mechanized ways to control weeds between crop rows as alternatives to hoeing in corn and soybean. Hoeing, the traditional method for controlling weeds between crop rows, was compared with either repeated mowing using a cord-mower or a string-trimmer or shallow tilling with a rototiller between rows. Weeds growing in rows were controlled by hand-pulling and hoeing because the focus of the experiment was on speeding weed control between rows. All four methods for controlling weeds between crop rows were equally effective when measured as either corn or soybean yield, visual rating of weed control, or weed ground cover in two years under contrasting rainfall patterns. Cord-mowing or string-trimming between rows was possible when soil was dry enough to walk upon but too wet to hoe or rototill.Nomenclature: Corn, Zea mays L. ‘Pioneer 3379’; soybean, Glycine max (L.) Merr. ‘Pioneer 9381’.Additional index words: Mowing, rototilling, sustainable agriculture, tillage, SETFA.Abbreviations: BR, between row; IR, in row.

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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 4

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Between-row mowing or tilling was equally effective as hoeing for corn yield, visual weed control rating and weed ground cover.

Treatment
repeated mowing using a cord-mower or a string-trimmer or shallow tilling with a rototillere2
Interactor
weedse1weed
Outcome
yield, visual rating of weed control, or weed ground covere1
Direction
equally effectivee1
Comparator
Hoeinge2
Setting
in two years under contrasting rainfall patternse1

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Corn (Zea mays)”

✓ located verbatim in the source · title, characters 72–87 · show in text ↑
e1

“All four methods for controlling weeds between crop rows were equally effective when measured as either corn or soybean yield, visual rating of weed control, or weed ground cover in two years under contrasting rainfall patterns”

✓ located verbatim in the source · abstract, characters 873–1100 · show in text ↑
e2

“Hoeing, the traditional method for controlling weeds between crop rows, was compared with either repeated mowing using a cord-mower or a string-trimmer or shallow tilling with a rototiller between rows”

✓ located verbatim in the source · abstract, characters 526–727 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Between-row mowing or tilling was equally effective as hoeing for soybean yield, visual weed control rating and weed ground cover.

Taxon
soybeanGlycine maxe1
Treatment
repeated mowing using a cord-mower or a string-trimmer or shallow tilling with a rototillere2
Interactor
weedse1weed
Outcome
yield, visual rating of weed control, or weed ground covere1
Direction
equally effectivee1
Comparator
Hoeinge2
Setting
in two years under contrasting rainfall patternse1

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Soybean (Glycine max)”

✓ located verbatim in the source · title, characters 92–113 · show in text ↑
e1

“All four methods for controlling weeds between crop rows were equally effective when measured as either corn or soybean yield, visual rating of weed control, or weed ground cover in two years under contrasting rainfall patterns”

✓ located verbatim in the source · abstract, characters 873–1100 · show in text ↑
e2

“Hoeing, the traditional method for controlling weeds between crop rows, was compared with either repeated mowing using a cord-mower or a string-trimmer or shallow tilling with a rototiller between rows”

✓ located verbatim in the source · abstract, characters 526–727 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cord-mowing or string-trimming between corn rows was possible when soil was dry enough to walk upon but too wet to hoe or rototill.

Treatment
Cord-mowing or string-trimming between rowse3
Outcome
possiblee3
Qualifier
when soil was dry enough to walk upon but too wet to hoe or rototille3

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Corn (Zea mays)”

✓ located verbatim in the source · title, characters 72–87 · show in text ↑
e3

“Cord-mowing or string-trimming between rows was possible when soil was dry enough to walk upon but too wet to hoe or rototill”

✓ located verbatim in the source · abstract, characters 1102–1227 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Cord-mowing or string-trimming between soybean rows was possible when soil was dry enough to walk upon but too wet to hoe or rototill.

Taxon
SoybeanGlycine maxt0
Treatment
Cord-mowing or string-trimming between rowse3
Outcome
possiblee3
Qualifier
when soil was dry enough to walk upon but too wet to hoe or rototille3

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Soybean (Glycine max)”

✓ located verbatim in the source · title, characters 92–113 · show in text ↑
e3

“Cord-mowing or string-trimming between rows was possible when soil was dry enough to walk upon but too wet to hoe or rototill”

✓ located verbatim in the source · abstract, characters 1102–1227 · show in text ↑

pruning · weed · Zea mays (maize)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

1 paper in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
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pruning · weed · Glycine max (soybean)Positive and negative results

7 papers: 5 positive, 2 negative or no effect

1 paper in the same direction as this paper · 5 in the opposite direction

  1. positive
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tillage · weed · Glycine max (soybean)Positive and negative results

44 papers: 25 positive, 19 negative or no effect

18 papers in the same direction as this paper · 25 in the opposite direction

  1. positive
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tillage · weed · Zea mays (maize)Positive and negative results

111 papers: 65 positive, 46 negative or no effect

45 papers in the same direction as this paper · 65 in the opposite direction

  1. positive
  2. positive
  3. positive
    The Nebraska till-plant system moved weed seed away from the corn row.

    Effect of Seedbed Preparation for Corn on Distribution of Weed Seed · 1971 · compared with conventional disking and plowing system of seedbed preparation

    Opposite direction

107 papers more in this group

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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.