Paper · 2024 · Black Sea Journal of Agriculture

Influence of Different Organic Fertilizers on Growth, Yield, Quality, and Element Content in Lettuce (Lactuca sativa var. longifolia)

Yahya Nas

15
claims
30
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

This study was performed in order to determine the effects of pigeon manure, chicken manure, and vermicompost on lettuce’s (Lactuca sativa var. longifolia) yield, vegetative growth, element content, and quality characteristics. The study was carried out in greenhouse. In the study, 0% (control), 0.50% pigeon manure, 0.50% chicken manure, and 0.50% vermicompost were applied via drip irrigation. The treatments began 20 days after the seedling planting, at 10-day intervals and four times. The experiment was set up with four replicates as per the randomized blocks experimental design. As per the research findings, the chicken manure significantly increased the lettuce’s average head weight and total yield compared to the control and two other treatments. Even if the pigeon manure and vermicompost increased the yield parameters similar to chicken manure, they were statistically in the same group as the control. The pigeon manure again significantly increased the chlorophyll amount, root’s fresh and dry weight, leaf’s K and Zn content, leaf color’s L value, and fruit juice’s pH content compared to control. On the other hand, vermicompost generated the highest results for the leaf’s Ca and Pb content. The Pb content in the lettuce leaves increased in all the organic fertilizer treatments compared to control, and the highest Pb content was obtained by the vermicompost, chicken manure, and pigeon manure, respectively. The treatments’ effect on the leaf’s Ni content was found to be insignificant. But the vermicompost increased the leaf’s Ni content compared to the control. The treatments’ effect on leaf color’s a* and b* values, brix degree, head diameter, head height, leaf relative water content, and Na, Mg, Cu and Mn contents was again found to be insignificant. In conclusion, it is recommended to apply 0.50% chicken manure in greenhouse lettuce cultivation to obtain large heads and high yield. To achieve bright-colored plants, high chlorophyll content, high root fresh and dry weight, and high potassium and zinc content, 0.50% pigeon manure is suggested. However, 0.50% vermicompost is not recommended for greenhouse lettuce cultivation due to its potential to increase the Pb and Ni heavy metal content in the leaves.

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Claims 15

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chicken manure significantly increased mean head weight and yield over control and other fertilizers.

Taxon
LettuceLactuca sativat0
Treatment
chicken manuree0
Outcome
average head weight and total yielde0
Direction
increasede0
Comparator
the control and two other treatmentse0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“the chicken manure significantly increased the lettuce’s average head weight and total yield compared to the control and two other treatments”

✓ located verbatim in the source · abstract, characters 618–759 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Pigeon manure increased yield parameters but was statistically grouped with control.

Taxon
LettuceLactuca sativat0
Treatment
pigeon manuree0
Outcome
yield parameterse0
Direction
increasede0
Comparator
the controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“the pigeon manure and vermicompost increased the yield parameters similar to chicken manure, they were statistically in the same group as the control”

✓ located verbatim in the source · abstract, characters 769–918 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Vermicompost increased yield parameters but was statistically grouped with control.

Taxon
LettuceLactuca sativat0
Treatment
vermicomposte0
Outcome
yield parameterse0
Direction
increasede0
Comparator
the controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“the pigeon manure and vermicompost increased the yield parameters similar to chicken manure, they were statistically in the same group as the control”

✓ located verbatim in the source · abstract, characters 769–918 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pigeon manure significantly raised chlorophyll amount.

Taxon
LettuceLactuca sativat0
Treatment
pigeon manuree0
Outcome
chlorophyll amounte0
Direction
increasede0
Comparator
controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“The pigeon manure again significantly increased the chlorophyll amount, root’s fresh and dry weight, leaf’s K and Zn content, leaf color’s L value, and fruit juice’s pH content compared to control”

✓ located verbatim in the source · abstract, characters 920–1116 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pigeon manure significantly raised root fresh and dry weight.

Taxon
LettuceLactuca sativat0
Treatment
pigeon manuree0
Outcome
root’s fresh and dry weighte0
Direction
increasede0
Comparator
controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“The pigeon manure again significantly increased the chlorophyll amount, root’s fresh and dry weight, leaf’s K and Zn content, leaf color’s L value, and fruit juice’s pH content compared to control”

✓ located verbatim in the source · abstract, characters 920–1116 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pigeon manure significantly increased leaf K and Zn content.

Taxon
LettuceLactuca sativat0
Treatment
pigeon manuree0
Outcome
leaf’s K and Zn contente0
Direction
increasede0
Comparator
controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“The pigeon manure again significantly increased the chlorophyll amount, root’s fresh and dry weight, leaf’s K and Zn content, leaf color’s L value, and fruit juice’s pH content compared to control”

✓ located verbatim in the source · abstract, characters 920–1116 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pigeon manure significantly increased leaf color L value and juice pH.

Taxon
LettuceLactuca sativat0
Treatment
pigeon manuree0
Outcome
leaf color’s L value, and fruit juice’s pH contente0
Direction
increasede0
Comparator
controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“The pigeon manure again significantly increased the chlorophyll amount, root’s fresh and dry weight, leaf’s K and Zn content, leaf color’s L value, and fruit juice’s pH content compared to control”

✓ located verbatim in the source · abstract, characters 920–1116 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Vermicompost produced the highest leaf calcium content.

Taxon
LettuceLactuca sativat0
Treatment
vermicomposte0
Outcome
leaf’s Cae0
Direction
higheste0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“vermicompost generated the highest results for the leaf’s Ca and Pb content”

✓ located verbatim in the source · abstract, characters 1137–1212 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

All organic fertilizers increased leaf Pb, with vermicompost highest, followed by chicken and pigeon manure.

Taxon
LettuceLactuca sativat0
Treatment
all the organic fertilizer treatmentse0
Outcome
Pb content in the lettuce leavese0
Direction
increasede0
Comparator
controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“The Pb content in the lettuce leaves increased in all the organic fertilizer treatments compared to control, and the highest Pb content was obtained by the vermicompost, chicken manure, and pigeon manure, respectively”

✓ located verbatim in the source · abstract, characters 1214–1431 · show in text ↑
Intervention effectobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Fertilizer treatments had an insignificant effect on leaf Ni content.

Taxon
LettuceLactuca sativat0
Treatment
treatmentse0
Outcome
leaf’s Ni contente0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“The treatments’ effect on the leaf’s Ni content was found to be insignificant”

✓ located verbatim in the source · abstract, characters 1433–1510 · show in text ↑
Intervention effectobservedoriginal resultnegativenot significant (as stated)measured

Claim · model-written summary

Vermicompost increased leaf Ni relative to control.

Taxon
LettuceLactuca sativat0
Treatment
vermicomposte0
Outcome
leaf’s Ni contente0
Direction
increasede0
Comparator
the controle0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“the vermicompost increased the leaf’s Ni content compared to the control”

✓ located verbatim in the source · abstract, characters 1516–1588 · show in text ↑
Intervention effectobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Treatments had insignificant effects on leaf color a* and b*, brix, head dimensions, relative water content and Na, Mg, Cu and Mn.

Taxon
LettuceLactuca sativat0
Treatment
treatmentse0
Outcome
leaf color’s a* and b* values, brix degree, head diameter, head height, leaf relative water content, and Na, Mg, Cu and Mn contentse0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“The treatments’ effect on leaf color’s a* and b* values, brix degree, head diameter, head height, leaf relative water content, and Na, Mg, Cu and Mn contents was again found to be insignificant”

✓ located verbatim in the source · abstract, characters 1590–1783 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend 0.50% chicken manure for large heads and high yield.

Taxon
LettuceLactuca sativat0
Outcome
apply 0.50% chicken manuree0
Setting
greenhousee0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“it is recommended to apply 0.50% chicken manure in greenhouse lettuce cultivation to obtain large heads and high yield”

✓ located verbatim in the source · abstract, characters 1800–1918 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors suggest 0.50% pigeon manure for bright color, chlorophyll, root mass, potassium and zinc.

Taxon
LettuceLactuca sativat0
Outcome
0.50% pigeon manure is suggestede0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“To achieve bright-colored plants, high chlorophyll content, high root fresh and dry weight, and high potassium and zinc content, 0.50% pigeon manure is suggested”

✓ located verbatim in the source · abstract, characters 1920–2081 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors advise against 0.50% vermicompost because it may increase leaf Pb and Ni.

Taxon
LettuceLactuca sativat0
Outcome
0.50% vermicompost is not recommendede0
Setting
greenhousee0

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

t0

“Lettuce (Lactuca sativa var. longifolia)”

✓ located verbatim in the source · title, characters 93–133 · show in text ↑
e0

“0.50% vermicompost is not recommended for greenhouse lettuce cultivation due to its potential to increase the Pb and Ni heavy metal content in the leaves”

✓ located verbatim in the source · abstract, characters 2092–2245 · show in text ↑

fertilization · physiology: pigments · Lactuca sativa (garden lettuce)Results differ

41 papers: 37 positive, 4 negative or no effect

36 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. no effect
  3. no effect

37 papers more in this group

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fertilization · quality: postharvest · Lactuca sativa (garden lettuce)Positive and negative results

20 papers: 13 positive, 7 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

16 papers more in this group

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fertilization · nutrient: content · Lactuca sativa (garden lettuce)Positive and negative results

137 papers: 112 positive, 25 negative or no effect

111 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

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fertilization · growth · Lactuca sativa (garden lettuce)Positive and negative results

248 papers: 202 positive, 46 negative or no effect

201 papers in the same direction as this paper · 45 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

244 papers more in this group

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

249 papers: 213 positive, 36 negative or no effect

212 papers in the same direction as this paper · 34 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

245 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.