Paper · 1970 · Journal of Agriculture & Rural Development

Effects of Plant Spacing and Mulching on Yield and Profitability of Lettuce (Lactuca sativa L.)

M Moniruzzaman

6
claims
12
verbatim quotes
24
citations
1
research areas
✓
Open access

Abstract

A field experiment with three levels of spacing (40 x 20 cm, 40 x 30 cm and 40 x 40 cm) and two levels of mulching (mulch and non-mulch) was conducted to find out the effect of plant spacing and mulching on yield and profitability of lettuce cv. Green Wave at the Agricultural Research Station, Raikhali, Rangamati Hill District for the two consecutive years during 1999-’00 and 2000-’01. Plant spacing, mulching and their interaction showed significant effect on yield and yield components of lettuce. The highest fresh yield of lettuce was obtained from the closest spacing (40 x 20 cm) that was statistically similar to that recorded of medium spacing (40 x 30 cm) during both the years. Significantly higher fresh yield of lettuce was obtained from the mulched plants than that of unmulched plants. The highest yield (25.9 t/ha in 1999-’00 and 28.3 t/ha in 2000-’01 with an average of 27.10 t/ha) was observed in the spacing of 40 x 20 cm with mulch, which was statistically at par with the spacing of 40 x 30 cm with mulch. The results also revealed that higher Gross Return (Tk. 216, 800.00) was obtained from the closest spacing in combination with mulch followed by medium spacing (40 x 30 cm) with mulch (Tk. 210, 160.00). The treatment combination of 40 x 30 cm spacing and mulching gave the highest benefit cost ratio (8.84). But the benefit cost ratio (4.22) from the treatment combination of 40 x 20 cm spacing and mulching was less due to the involvement of higher seedling cost. Key words: Spacing, mulching, lettuce, yield, profitability.

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Claims 6

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Plant spacing, mulching and their interaction significantly affected yield and yield components of lettuce.

Taxon
lettuceLactuca sativae0
Material
cv. Green Wavee0
Treatment
Plant spacing, mulchinge1
Outcome
yield and yield componentse1
Setting
Agricultural Research Station, Raikhali, Rangamati Hill Districte0

Not reportedComparatorDirection

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“lettuce cv. Green Wave at the Agricultural Research Station, Raikhali, Rangamati Hill District”

✓ located verbatim in the source · abstract, characters 234–328 · show in text ↑
e1

“Plant spacing, mulching and their interaction showed significant effect on yield and yield components of lettuce”

✓ located verbatim in the source · abstract, characters 389–501 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Closest spacing (40 x 20 cm) gave the highest fresh lettuce yield, statistically similar to 40 x 30 cm in both years.

Taxon
lettuceLactuca sativae0
Treatment
closest spacing (40 x 20 cm)e1
Outcome
fresh yielde1
Direction
higheste1
Qualifier
statistically similare1
Comparator
medium spacing (40 x 30 cm)e1

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“lettuce cv. Green Wave at the Agricultural Research Station, Raikhali, Rangamati Hill District”

✓ located verbatim in the source · abstract, characters 234–328 · show in text ↑
e1

“The highest fresh yield of lettuce was obtained from the closest spacing (40 x 20 cm) that was statistically similar to that recorded of medium spacing (40 x 30 cm) during both the years”

✓ located verbatim in the source · abstract, characters 503–689 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mulched lettuce plants gave significantly higher fresh yield than unmulched plants.

Taxon
lettuceLactuca sativae0
Treatment
mulched plantse2
Outcome
fresh yielde2
Direction
highere2
Comparator
unmulched plantse2

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“lettuce cv. Green Wave at the Agricultural Research Station, Raikhali, Rangamati Hill District”

✓ located verbatim in the source · abstract, characters 234–328 · show in text ↑
e2

“Significantly higher fresh yield of lettuce was obtained from the mulched plants than that of unmulched plants”

✓ located verbatim in the source · abstract, characters 691–801 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Closest spacing with mulch gave a higher gross return (Tk. 216, 800.00) than 40 x 30 cm with mulch.

Taxon
lettuceLactuca sativae0
Treatment
closest spacing in combination with mulche4
Outcome
Gross Returne4
Direction
highere4
Value
Tk. 216, 800.00e4
Comparator
medium spacing (40 x 30 cm) with mulche4

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“lettuce cv. Green Wave at the Agricultural Research Station, Raikhali, Rangamati Hill District”

✓ located verbatim in the source · abstract, characters 234–328 · show in text ↑
e4

“higher Gross Return (Tk. 216, 800.00) was obtained from the closest spacing in combination with mulch followed by medium spacing (40 x 30 cm) with mulch (Tk. 210, 160.00)”

✓ located verbatim in the source · abstract, characters 1060–1230 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

40 x 30 cm spacing with mulching gave the highest benefit cost ratio (8.84).

Taxon
lettuceLactuca sativae0
Treatment
40 x 30 cm spacing and mulchinge5
Outcome
benefit cost ratioe5
Direction
higheste5
Value
8.84e5

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“lettuce cv. Green Wave at the Agricultural Research Station, Raikhali, Rangamati Hill District”

✓ located verbatim in the source · abstract, characters 234–328 · show in text ↑
e5

“The treatment combination of 40 x 30 cm spacing and mulching gave the highest benefit cost ratio (8.84)”

✓ located verbatim in the source · abstract, characters 1232–1335 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

40 x 20 cm spacing with mulching gave a lower benefit cost ratio (4.22) than the other combination, due to higher seedling cost.

Taxon
lettuceLactuca sativae0
Treatment
40 x 20 cm spacing and mulchinge6
Outcome
benefit cost ratioe6
Direction
lesse6
Value
4.22e6
Qualifier
due to the involvement of higher seedling coste6

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“lettuce cv. Green Wave at the Agricultural Research Station, Raikhali, Rangamati Hill District”

✓ located verbatim in the source · abstract, characters 234–328 · show in text ↑
e6

“But the benefit cost ratio (4.22) from the treatment combination of 40 x 20 cm spacing and mulching was less due to the involvement of higher seedling cost”

✓ located verbatim in the source · abstract, characters 1337–1492 · show in text ↑

mulching · yield · Lactuca sativa (garden lettuce)Positive and negative results

24 papers: 19 positive, 5 negative or no effect

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

  1. positive
  2. positive
  3. no effect

20 papers more in this group

See all 24 papers →

density · yield · Lactuca sativa (garden lettuce)Results agree

13 papers: 13 positive, 0 negative or no effect

12 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 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.