Abstract
The experiment was conducted in a field in Karaj-Iran to find out the effects of spacing, mulch and organic fertilizer on the growth and yield of lettuce.Four levels of spacing (40×40 cm, 40×35 cm, 40×30 cm and 40×25 cm),two cultivation systems(mulch and nomulch) and two different types oforganic fertilizers (humic acid and vitamint) were conducted onLactuca sativa cv. Iceberg at the Engineer Zeraee's field.The treatmentswere set up ina split plot factorial design based on the randomized complete block design with three replications.According to results of experiment, plantspacingshowed significant effects onstem diameter, stem weight, stem fresh weight, stem dry matter, leaf number, stem dry weight, leaf dry weight, total yield, NO3 %, P %and K%. Mulching had significant effects on stem length, stem diameter, stem weight, head diameter, leaf number, bud number, stem fresh weight, stem dry matter and total yield. Also stem length, stem diameter, stem weight, bud number, leaf dry weight and K%were significantly affected by organic fertilizer. The highesttotal yield of lettuce was obtained from spacing 40×35 cm and the lowest observed in spacing 40×40. Although vitamint showed better effect on lettuce growth, organic fertilizer hadn't significant effect on total yield. Finally, total yield increased with mulch application compare with no mulch treatment.
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Claims 12
Claim · model-written summary
Plant spacing significantly affected lettuce stem traits and leaf number.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- plantspacinge0
- Outcome
- stem diameter, stem weight, stem fresh weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plantspacingshowed significant effects onstem diameter, stem weight, stem fresh weight, stem dry matter, leaf number, stem dry weight, leaf dry weight, total yield, NO3 %, P %and K%.”
t0“lettuce”
Claim · model-written summary
Plant spacing significantly affected lettuce total yield.
- Taxon
- lettuceLactuca sativat0
- Treatment
- plantspacinge0
- Outcome
- total yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plantspacingshowed significant effects onstem diameter, stem weight, stem fresh weight, stem dry matter, leaf number, stem dry weight, leaf dry weight, total yield, NO3 %, P %and K%.”
t0“lettuce”
Claim · model-written summary
Plant spacing significantly affected lettuce nitrate, phosphorus and potassium percentages.
- Taxon
- lettuceLactuca sativat0
- Treatment
- plantspacinge0
- Outcome
- NO3 %, P %and K%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plantspacingshowed significant effects onstem diameter, stem weight, stem fresh weight, stem dry matter, leaf number, stem dry weight, leaf dry weight, total yield, NO3 %, P %and K%.”
t0“lettuce”
Claim · model-written summary
Mulching significantly affected lettuce stem and head traits.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Mulchinge0
- Outcome
- stem length, stem diameter, stem weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mulching had significant effects on stem length, stem diameter, stem weight, head diameter, leaf number, bud number, stem fresh weight, stem dry matter and total yield.”
t0“lettuce”
Claim · model-written summary
Mulching significantly affected lettuce total yield.
- Taxon
- lettuceLactuca sativat0
- Treatment
- Mulchinge0
- Outcome
- total yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mulching had significant effects on stem length, stem diameter, stem weight, head diameter, leaf number, bud number, stem fresh weight, stem dry matter and total yield.”
t0“lettuce”
Claim · model-written summary
Organic fertilizer significantly affected lettuce stem and bud traits.
- Taxon
- lettuceLactuca sativat0
- Treatment
- organic fertilizere0
- Outcome
- stem length, stem diameter, stem weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stem length, stem diameter, stem weight, bud number, leaf dry weight and K%were significantly affected by organic fertilizer.”
t0“lettuce”
Claim · model-written summary
Organic fertilizer significantly affected lettuce leaf dry weight and potassium percentage.
- Taxon
- lettuceLactuca sativat0
- Treatment
- organic fertilizere0
- Outcome
- leaf dry weight and K%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stem length, stem diameter, stem weight, bud number, leaf dry weight and K%were significantly affected by organic fertilizer.”
t0“lettuce”
Claim · model-written summary
Lettuce total yield was highest at 40×35 cm spacing.
- Taxon
- lettuceLactuca sativae0
- Treatment
- spacing 40×35 cme0
- Outcome
- total yielde0
- Direction
- higheste0
- Comparator
- spacing 40×40e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highesttotal yield of lettuce was obtained from spacing 40×35 cm and the lowest observed in spacing 40×40.”
Claim · model-written summary
Lettuce total yield was lowest at 40×40 cm spacing.
- Taxon
- lettuceLactuca sativae0
- Treatment
- spacing 40×40e0
- Outcome
- total yielde0
- Direction
- loweste0
- Comparator
- spacing 40×35 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highesttotal yield of lettuce was obtained from spacing 40×35 cm and the lowest observed in spacing 40×40.”
Claim · model-written summary
Vitamint had a better effect on lettuce growth.
- Taxon
- lettuceLactuca sativae0
- Treatment
- vitaminte0
- Outcome
- lettuce growthe0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although vitamint showed better effect on lettuce growth, organic fertilizer hadn't significant effect on total yield.”
Claim · model-written summary
Organic fertilizer did not significantly affect lettuce total yield.
- Taxon
- lettuceLactuca sativat0
- Treatment
- organic fertilizere0
- Outcome
- total yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“organic fertilizer hadn't significant effect on total yield.”
t0“lettuce”
Claim · model-written summary
Mulch increased lettuce total yield versus no mulch.
- Taxon
- lettuceLactuca sativat0
- Treatment
- mulch applicatione0
- Outcome
- total yielde0
- Direction
- increasede0
- Comparator
- no mulch treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total yield increased with mulch application compare with no mulch treatment.”
t0“lettuce”
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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.