Paper · 2015 · Shanxi nongye kexue

Effect of Different Drip Irrigation Special Purpose Fertilizers on the Yield and Quality of Lettuce

Zhang Yi-gon

8
claims
8
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

The effects of three drip irrigation special purpose fertilizers on yield and quality of lettuce were studied. The results showed that compared to the control combining with treatment of humic acid drip irrigation fertilizer(T1), treatment of leaf vegetables solid inorganic drip irrigation fertilizer(T2),treatment of universal solid inorganic drip irrigation fertilizer(T3), three drip irrigation special purpose fertilizers could significantly increase plant height, plant expansion, leaf number of lettuce. Lettuce yields were found increased 34.9%, 11.8% and 31.3% respectively. Three drip irrigation special purpose fertilizers significantly increased soluble sugar content of lettuce,decreased nitrate content,and there were no significant differences in vitamin C content. Among three drip irrigation special purpose fertilizers,humic acid drip irigation fertilizer(T1)was the best, which obviously enhanced the growth for lettuce,increased yield, improved quality of lettuce.

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Claims 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

All three fertilizers significantly increased lettuce height, expansion and leaf number relative to control.

Taxon
lettuceLactuca sativae0
Treatment
three drip irrigation special purpose fertilizerse0
Outcome
plant height, plant expansion, leaf numbere0
Direction
increasee0

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

“three drip irrigation special purpose fertilizers could significantly increase plant height, plant expansion, leaf number of lettuce.”

✓ located verbatim in the source · abstract, characters 377–510 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic acid fertilizer increased lettuce yield by 34.9%.

Taxon
LettuceLactuca sativae0
Outcome
yieldse0
Direction
increasede0
Value
34.9%e0

Not reportedTreatmentComparator

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 yields were found increased 34.9%, 11.8% and 31.3% respectively.”

✓ located verbatim in the source · abstract, characters 511–583 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Leaf-vegetable solid inorganic fertilizer increased lettuce yield by 11.8%.

Taxon
LettuceLactuca sativae0
Outcome
yieldse0
Direction
increasede0
Value
11.8%e0

Not reportedTreatmentComparator

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 yields were found increased 34.9%, 11.8% and 31.3% respectively.”

✓ located verbatim in the source · abstract, characters 511–583 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Universal solid inorganic fertilizer increased lettuce yield by 31.3%.

Taxon
LettuceLactuca sativae0
Outcome
yieldse0
Direction
increasede0
Value
31.3%e0

Not reportedTreatmentComparator

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 yields were found increased 34.9%, 11.8% and 31.3% respectively.”

✓ located verbatim in the source · abstract, characters 511–583 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

All three fertilizers significantly increased lettuce soluble sugar content.

Taxon
lettuceLactuca sativae0
Treatment
Three drip irrigation special purpose fertilizerse0
Outcome
soluble sugar contente0
Direction
increasede0

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

“Three drip irrigation special purpose fertilizers significantly increased soluble sugar content of lettuce,decreased nitrate content,and there were no significant differences in vitamin C content.”

✓ located verbatim in the source · abstract, characters 584–780 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All three fertilizers decreased lettuce nitrate content.

Taxon
lettuceLactuca sativae0
Treatment
Three drip irrigation special purpose fertilizerse0
Outcome
nitrate contente0
Direction
decreasede0

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

“Three drip irrigation special purpose fertilizers significantly increased soluble sugar content of lettuce,decreased nitrate content,and there were no significant differences in vitamin C content.”

✓ located verbatim in the source · abstract, characters 584–780 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Vitamin C content did not differ significantly among fertilizer treatments.

Taxon
lettuceLactuca sativae0
Treatment
Three drip irrigation special purpose fertilizerse0
Outcome
vitamin C contente0
Direction
no significant differencese0

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

“Three drip irrigation special purpose fertilizers significantly increased soluble sugar content of lettuce,decreased nitrate content,and there were no significant differences in vitamin C content.”

✓ located verbatim in the source · abstract, characters 584–780 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors considered humic acid fertilizer the best for lettuce growth, yield and quality.

Taxon
lettuceLactuca sativae0
Treatment
humic acid drip irigation fertilizer(T1)e0
Outcome
growth for lettuce,increased yield, improved quality of lettucee0

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

“humic acid drip irigation fertilizer(T1)was the best, which obviously enhanced the growth for lettuce,increased yield, improved quality of lettuce.”

✓ located verbatim in the source · abstract, characters 837–984 · show in text ↑

irrigation · quality: phytochemicals · Lactuca sativa (garden lettuce)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
  3. positive

1 paper more in this group

See all 5 papers →

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

8 papers: 6 positive, 2 negative or no effect

5 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. no effect
  3. positive

4 papers more in this group

See all 8 papers →

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

45 papers: 32 positive, 13 negative or no effect

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

  1. no effect
  2. no effect
  3. negative

41 papers more in this group

See all 45 papers →

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

49 papers: 39 positive, 10 negative or no effect

9 papers in the same direction as this paper · 39 in the opposite direction

  1. positive
  2. positive
  3. positive

45 papers more in this group

See all 49 papers →

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. negative
  2. negative
  3. no effect

133 papers more in this group

See all 137 papers →

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. negative
  2. negative
  3. negative

244 papers more in this group

See all 248 papers →

irrigation · physiology: osmolytes · Lactuca sativa (garden lettuce)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

fertilization · physiology: osmolytes · Lactuca sativa (garden lettuce)Results agree

17 papers: 17 positive, 0 negative or no effect

16 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

13 papers more in this group

See all 17 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.