Paper · 2014 · Academia Journal of Agricultureal Research

Effect of tillage method on weed control and Zea mays (maize) yield under Zimbabwean dry conditions.

Cosmas Parwada; Agathar Kamota; Charles Karavina; et al.

7
claims
14
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Maize production in semi-arid areas is faced with numerous daunting challenges that include weeds, low rainfall and excessive infield water loss through runoff. This compounded to declining grain yield. An experiment was done at Domboshava Training Centre, Zimbabwe to determine effects of two tillage methods and mulching (basin planting + grass mulch and conventional + grass mulch) on Zea mays (maize) height, yield and weeds density. The experiment was a 2 × 1 factorial laid in a randomised complete block design with three replicates. Mulch cover was done on each of the tillage method at a rate of 5 t/ha. The blocking factor was fertility gradient. Data on plant height, weed density and grain yield was collected. The data was analysed for One Way Analysis of Variance at p < 0.05 to determine the effect of tillage on plant height, weed density and yield. Least Square Difference at 5% level was used to separate means. There was a statistical significant effect (p<0.05) of tillage method and mulch on plant height, weed density and grain yield. Conventional tillage + mulch and basin planting + mulch were statistically insignificant (p < 0.05) on weed density and grain yield. The results showed that conventional tillage + grass mulch had lowest weed density, vigorous plant height and highest yield whereas planting basin had the highest weed density, shortest plants. It is therefore recommended that farmers in dry areas would need to mulch their fields for an improved maize yield.

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Claims 7

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Tillage and mulch had a significant effect on plant height, weed density and grain yield.

Taxon
Zea mays (maize)Zea mayst0
Treatment
tillage method and mulche0
Outcome
plant height, weed density and grain yielde0

Not reportedComparatorDirection

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“There was a statistical significant effect (p<0.05) of tillage method and mulch on plant height, weed density and grain yield”

✓ located verbatim in the source · abstract, characters 930–1055 · show in text ↑
t0

“Zea mays (maize)”

✓ located verbatim in the source · title, characters 45–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Conventional tillage with mulch had the lowest weed density.

Taxon
Zea mays (maize)Zea mayst0
Treatment
conventional tillage + grass mulche0
Outcome
weed densitye0
Direction
loweste0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“conventional tillage + grass mulch had lowest weed density”

✓ located verbatim in the source · abstract, characters 1214–1272 · show in text ↑
t0

“Zea mays (maize)”

✓ located verbatim in the source · title, characters 45–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Conventional tillage with mulch produced vigorous plant height.

Taxon
Zea mays (maize)Zea mayst0
Treatment
conventional tillage + grass mulche0
Outcome
plant heighte0
Direction
vigorouse0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“conventional tillage + grass mulch had lowest weed density, vigorous plant height”

✓ located verbatim in the source · abstract, characters 1214–1295 · show in text ↑
t0

“Zea mays (maize)”

✓ located verbatim in the source · title, characters 45–61 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Conventional tillage with mulch had the highest yield.

Taxon
Zea mays (maize)Zea mayst0
Treatment
conventional tillage + grass mulche0
Outcome
yielde0
Direction
higheste0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“conventional tillage + grass mulch had lowest weed density, vigorous plant height and highest yield”

✓ located verbatim in the source · abstract, characters 1214–1313 · show in text ↑
t0

“Zea mays (maize)”

✓ located verbatim in the source · title, characters 45–61 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Planting basins had the highest weed density.

Taxon
Zea mays (maize)Zea mayst0
Treatment
planting basine0
Outcome
weed densitye0
Direction
higheste0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“planting basin had the highest weed density”

✓ located verbatim in the source · abstract, characters 1322–1365 · show in text ↑
t0

“Zea mays (maize)”

✓ located verbatim in the source · title, characters 45–61 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Planting basins had the shortest plants.

Taxon
Zea mays (maize)Zea mayst0
Treatment
planting basine0
Outcome
shortest plantse0
Direction
shorteste0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“planting basin had the highest weed density, shortest plants”

✓ located verbatim in the source · abstract, characters 1322–1382 · show in text ↑
t0

“Zea mays (maize)”

✓ located verbatim in the source · title, characters 45–61 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend mulching in dry areas to improve maize yield.

Taxon
Zea mays (maize)Zea mayst0
Outcome
mulch their fields for an improved maize yielde0

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“farmers in dry areas would need to mulch their fields for an improved maize yield”

✓ located verbatim in the source · abstract, characters 1417–1498 · show in text ↑
t0

“Zea mays (maize)”

✓ located verbatim in the source · title, characters 45–61 · show in text ↑

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

55 papers: 48 positive, 7 negative or no effect

47 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

51 papers more in this group

See all 55 papers →

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

111 papers: 65 positive, 46 negative or no effect

64 papers in the same direction as this paper · 41 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

107 papers more in this group

See all 111 papers →

mulching · growth · Zea mays (maize)Positive and negative results

140 papers: 122 positive, 18 negative or no effect

121 papers in the same direction as this paper · 16 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

136 papers more in this group

See all 140 papers →

tillage · growth · Zea mays (maize)Positive and negative results

283 papers: 196 positive, 87 negative or no effect

195 papers in the same direction as this paper · 81 in the opposite direction · 6 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

279 papers more in this group

See all 283 papers →

mulching · yield · Zea mays (maize)Positive and negative results

364 papers: 330 positive, 34 negative or no effect

329 papers in the same direction as this paper · 31 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative
    Without nitrogen in the wet year, mulched plots yielded much less.

    Effect of a Killed Sod Mulch on Nitrate Movement and Corn Yield1 · 1973 · compared with conventionally‐tilled no nitrogen treatment

    Opposite direction

360 papers more in this group

See all 364 papers →

tillage · yield · Zea mays (maize)Positive and negative results

1,099 papers: 812 positive, 287 negative or no effect

811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

1,095 papers more in this group

See all 1,099 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.