Paper · 2024 · Cogent Food & Agriculture

Tillage rotation and biostimulants can compensate for reduced synthetic agrochemical application in a dryland cropping system

Flackson Tshuma; Pieter Andreas Swanepoel; Johan Labuschagne; et al.

5
claims
10
verbatim quotes
4
citations
1
research areas
✓
Open access · cc-by

Abstract

The effects of four continuous tillage regimes; mouldboard ploughing, tine-tillage, shallow tine-tillage, no-tillage; and three tillage rotations (involving shallow tine-tillage once every two, three, and four years in rotation with no-tillage), and two rates of synthetic agrochemicals (standard: with regular application of synthetic agrochemicals; and reduced: fewer synthetic agrochemicals in combination with biostimulants) on wheat and canola yield and quality were investigated between 2018 and 2020 under typical Mediterranean climatic conditions in South Africa. It was hypothesised that a combination of tillage rotations and the application of reduced synthetic agrochemicals will improve crop yield and quality relative to mouldboard ploughing or no-tillage. Results showed that a combination of reduced application of synthetic agrochemicals and tillage rotation practices maintained but did not significantly increase crop yield and quality, relative to no-tillage and mouldboard ploughing. Results also showed that intensive ploughing is unnecessary as it did not significantly increase yields (p > 0.05). In addition, it is possible to reduce the quantity of synthetic agrochemicals applied by partially replacing them with biostimulants without significant changes in grain or seed yields and quality. We, therefore, suggest that producers opt for biostimulants in combination with no-tillage or tillage rotation as a sustainable way of farming.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 5

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Reduced agrochemicals with tillage rotation maintained wheat yield and quality relative to no-tillage and mouldboard ploughing.

Treatment
reduced application of synthetic agrochemicals and tillage rotation practicese0
Outcome
crop yield and qualitye0
Direction
maintainede0
Comparator
no-tillage and mouldboard ploughinge0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“a combination of reduced application of synthetic agrochemicals and tillage rotation practices maintained but did not significantly increase crop yield and quality, relative to no-tillage and mouldboard ploughing”

✓ located verbatim in the source · abstract, characters 791–1003 · show in text ↑
t0

“wheat and canola”

✓ located verbatim in the source · abstract, characters 432–448 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Reduced agrochemicals with tillage rotation maintained canola yield and quality relative to no-tillage and mouldboard ploughing.

Treatment
reduced application of synthetic agrochemicals and tillage rotation practicese0
Outcome
crop yield and qualitye0
Direction
maintainede0
Comparator
no-tillage and mouldboard ploughinge0

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

Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“a combination of reduced application of synthetic agrochemicals and tillage rotation practices maintained but did not significantly increase crop yield and quality, relative to no-tillage and mouldboard ploughing”

✓ located verbatim in the source · abstract, characters 791–1003 · show in text ↑
t0

“wheat and canola”

✓ located verbatim in the source · abstract, characters 432–448 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Intensive ploughing did not significantly increase yields.

Treatment
intensive ploughinge0
Outcome
yieldse0
Direction
did not significantly increasee0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“intensive ploughing is unnecessary as it did not significantly increase yields (p > 0.05)”

✓ located verbatim in the source · abstract, characters 1030–1119 · show in text ↑
t0

“wheat and canola”

✓ located verbatim in the source · abstract, characters 432–448 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Partially replacing synthetic agrochemicals with biostimulants did not significantly change grain or seed yields and quality.

Treatment
partially replacing them with biostimulantse0
Outcome
grain or seed yields and qualitye0
Direction
without significant changese0
Comparator
synthetic agrochemicalse0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“reduce the quantity of synthetic agrochemicals applied by partially replacing them with biostimulants without significant changes in grain or seed yields and quality”

✓ located verbatim in the source · abstract, characters 1152–1317 · show in text ↑
t0

“wheat and canola”

✓ located verbatim in the source · abstract, characters 432–448 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend biostimulants with no-tillage or tillage rotation as a sustainable farming practice.

Outcome
biostimulants in combination with no-tillage or tillage rotatione0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Brassica napus var. napus
Brassica napus var. napus · Taxoncontri from Yonezawa-Shi, Yamagata, Japan · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“producers opt for biostimulants in combination with no-tillage or tillage rotation as a sustainable way of farming”

✓ located verbatim in the source · abstract, characters 1347–1461 · show in text ↑
t0

“wheat and canola”

✓ located verbatim in the source · abstract, characters 432–448 · show in text ↑

other · quality: general · Brassica napus (oilseed rape)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 reporting no difference from an alternative

  1. positive
See all 2 papers →

other · quality: general · Triticum aestivum (wheat)Positive and negative results

14 papers: 11 positive, 3 negative or no effect

2 papers in the same direction as this paper · 11 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

10 papers more in this group

See all 14 papers →

rotation · quality: general · Triticum aestivum (wheat)Positive and negative results

16 papers: 10 positive, 6 negative or no effect

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

  1. positive
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

tillage · quality: general · Triticum aestivum (wheat)Positive and negative results

18 papers: 14 positive, 4 negative or no effect

3 papers in the same direction as this paper · 14 in the opposite direction

  1. positive
  2. positive
  3. positive

14 papers more in this group

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tillage · yield · Brassica napus (oilseed rape)Positive and negative results

50 papers: 42 positive, 8 negative or no effect

7 papers in the same direction as this paper · 42 in the opposite direction

  1. positive
  2. positive
  3. positive

46 papers more in this group

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tillage · yield · Triticum aestivum (wheat)Positive and negative results

1,414 papers: 1,116 positive, 298 negative or no effect

297 papers in the same direction as this paper · 1,116 in the opposite direction

  1. positive
  2. positive
  3. no effect

1,410 papers more in this group

See all 1,414 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.