Abstract
The growth, yield, head quality and NPK contents in lettuce plants grown on a sandy soil fertilized with different rates (0, 75 and 150 gm m-2) of 18:7:16 NPK compound fertilizer was evaluated in an experiment conducted for two successive seasons (1998/1999 and 1999/2000). As compared with the control, fertilized treatments showed significant differences in fresh weight per plant, percentage dry/fresh weight, leaf area, total yield, head diameter and head circumference for the two seasons. After harvest, the contents of NPK in the lettuce leaves and the soil were increased by the application of the compound fertilizer at a rate of 150 gm/m2. However, the increase in P % in both lettuce leaves and soil was not significant for all treatments.
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Claims 5
Claim · model-written summary
Fertilised treatments significantly differed from the control in fresh weight per plant and percentage dry/fresh weight.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- fertilized treatmentse1
- Outcome
- fresh weight per plant, percentage dry/fresh weighte1
- Comparator
- controle1
- Setting
- two seasonse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“HEAD QUALITY OF LETTUCE”
e1“As compared with the control, fertilized treatments showed significant differences in fresh weight per plant, percentage dry/fresh weight, leaf area, total yield, head diameter and head circumference for the two seasons”
Claim · model-written summary
Fertilised treatments significantly differed from the control in leaf area and total yield.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- fertilized treatmentse1
- Outcome
- leaf area, total yielde1
- Comparator
- controle1
- Setting
- two seasonse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“HEAD QUALITY OF LETTUCE”
e1“As compared with the control, fertilized treatments showed significant differences in fresh weight per plant, percentage dry/fresh weight, leaf area, total yield, head diameter and head circumference for the two seasons”
Claim · model-written summary
Fertilised treatments significantly differed from the control in head diameter and head circumference.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- fertilized treatmentse1
- Outcome
- head diameter and head circumferencee1
- Comparator
- controle1
- Setting
- two seasonse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“HEAD QUALITY OF LETTUCE”
e1“As compared with the control, fertilized treatments showed significant differences in fresh weight per plant, percentage dry/fresh weight, leaf area, total yield, head diameter and head circumference for the two seasons”
Claim · model-written summary
Compound fertiliser at 150 gm/m2 increased NPK contents in lettuce leaves and soil after harvest.
- Taxon
- lettuce
Lactuca sativat0 - Organ / stage
- lettuce leavese2
- Treatment
- compound fertilizer at a rate of 150 gm/m2e2
- Outcome
- contents of NPK in the lettuce leaves and the soile2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“HEAD QUALITY OF LETTUCE”
e2“After harvest, the contents of NPK in the lettuce leaves and the soil were increased by the application of the compound fertilizer at a rate of 150 gm/m2”
Claim · model-written summary
The increase in P percentage in lettuce leaves and soil was not significant across fertilised treatments.
- Taxon
- lettuce
Lactuca sativat0 - Organ / stage
- lettuce leavese3
- Treatment
- all treatmentse3
- Outcome
- increase in P % in both lettuce leaves and soile3
- Direction
- increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“HEAD QUALITY OF LETTUCE”
e3“However, the increase in P % in both lettuce leaves and soil was not significant for all treatments”