Paper · 2011

Effects of humic acid liquid fertilizer on the yield and quality of lettuces

Zhang Gui-nv

8
claims
16
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

To study effect of humic acid liquid fertilizer(HALF)on the yield and quality of lettuces(Lactuca sativa),the treatment of chosing HALF as basal and topdressing fertilizers compared with the treatment of chosing compound fertilizer(CF)as basal fertilizer and urea as topdressing(control),through the random blocks field experiments design.The results indicated that compared with control and combining application of HALF and microelements as topdressing(T1),treatment of CF as basal fertilizer and HALF as topdressing(T1),the treatment of HALF as basal fertilizer and topdressing(T2),treatment of HALF as basal fertilizer had soluble sugar contents increasing by 20.8%,51.5% and 88.6%,and soluble protein contents by 13.9%,14.1%,38.7%,respectively.Under the same nutrient supplies,HALF increased soluble sugar and soluble protein contents,improved the quality of lettuces.Among all of the treatments,T3 was best.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.

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 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The basal fertilizer treatment increased soluble sugar by 20.8% versus control.

Taxon
lettucesLactuca sativat0
Treatment
HALF as basal fertilizere0
Outcome
soluble sugar contentse0
Direction
increasinge0
Value
20.8%e0

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“treatment of HALF as basal fertilizer had soluble sugar contents increasing by 20.8%,51.5% and 88.6%”

✓ located verbatim in the source · abstract, characters 585–685 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The basal fertilizer treatment increased soluble sugar by 51.5% versus combined HALF and microelements.

Taxon
lettucesLactuca sativat0
Treatment
HALF as basal fertilizere0
Outcome
soluble sugar contentse0
Direction
increasinge0
Value
51.5%e0

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“treatment of HALF as basal fertilizer had soluble sugar contents increasing by 20.8%,51.5% and 88.6%”

✓ located verbatim in the source · abstract, characters 585–685 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The basal fertilizer treatment increased soluble sugar by 88.6% versus CF basal and HALF topdressing.

Taxon
lettucesLactuca sativat0
Treatment
HALF as basal fertilizere0
Outcome
soluble sugar contentse0
Direction
increasinge0
Value
88.6%e0

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“treatment of HALF as basal fertilizer had soluble sugar contents increasing by 20.8%,51.5% and 88.6%”

✓ located verbatim in the source · abstract, characters 585–685 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The basal fertilizer treatment increased soluble protein by 13.9% versus control.

Taxon
lettucesLactuca sativat0
Outcome
soluble protein contentse0
Value
13.9%e0

Not reportedTreatmentComparatorDirection

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“soluble protein contents by 13.9%,14.1%,38.7%,respectively”

✓ located verbatim in the source · abstract, characters 690–748 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The basal fertilizer treatment increased soluble protein by 14.1% versus combined HALF and microelements.

Taxon
lettucesLactuca sativat0
Outcome
soluble protein contentse0
Value
14.1%e0

Not reportedTreatmentComparatorDirection

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“soluble protein contents by 13.9%,14.1%,38.7%,respectively”

✓ located verbatim in the source · abstract, characters 690–748 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The basal fertilizer treatment increased soluble protein by 38.7% versus CF basal and HALF topdressing.

Taxon
lettucesLactuca sativat0
Outcome
soluble protein contentse0
Value
38.7%e0

Not reportedTreatmentComparatorDirection

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“soluble protein contents by 13.9%,14.1%,38.7%,respectively”

✓ located verbatim in the source · abstract, characters 690–748 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

HALF increased lettuce sugar and protein under equal nutrient supply.

Taxon
lettucesLactuca sativat0
Treatment
HALFe0
Outcome
soluble sugar and soluble protein contentse0
Direction
increasede0
Qualifier
Under the same nutrient suppliese0

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“Under the same nutrient supplies,HALF increased soluble sugar and soluble protein contents”

✓ located verbatim in the source · abstract, characters 749–839 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

T3 ranked best among all treatments.

Taxon
lettucesLactuca sativat0
Outcome
T3 was beste0
Direction
beste0

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

“lettuces”

✓ located verbatim in the source · title, characters 68–76 · show in text ↑
e0

“Among all of the treatments,T3 was best”

✓ located verbatim in the source · abstract, characters 873–912 · show in text ↑

other · physiology: osmolytes · Lactuca sativa (garden lettuce)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

1 paper more in this group

See all 5 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.