Abstract
Abstract Broccoli ( Brassica oleracea L. var. Italica), celery ( Apium graveolens L.), lettuce ( Lactuca sativa L.), and pepper ( Capsicum annuum L.) seedlings were grown in multicells and fertilized with complete nutrient solutions at two N rates (150 or 350 mg·liter −1 ) and three K rates (50, 200, or 350 mg·liter −1 ) in factorial combination. Shoot growth of all species was enhanced at higher N rates but root growth decreased. Broccoli leaf area and shoot dry weight increased curvilinearly with K rate with a maximum at 200 mg·liter −1 . For celery K rates increased leaf area linearly. The effect of K rates on growth characteristics was generally a function of the N status and differed among species, celery being the least affected. Under the high N rate, maximum percentage of shoot dry matter, root dry weight, and root:shoot dry weight ratio, as well as minimum specific leaf area of broccoli were obtained with the intermediate K rate. Increasing K rates under high N status enhanced both lettuce leaf area and dry matter accumulation. For pepper, this caused leaf expansion and resulted in more succulent plants.
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Claims 10
Claim · model-written summary
Shoot growth of all four vegetable species was enhanced at higher N rates.
Not reportedComparator
Verbatim
t0“Four Vegetable Species”
e1“Shoot growth of all species was enhanced at higher N rates”
Claim · model-written summary
Root growth of the four vegetable species decreased at higher N rates.
Not reportedComparator
Verbatim
t0“Four Vegetable Species”
e1“Shoot growth of all species was enhanced at higher N rates but root growth decreased”
Claim · model-written summary
Broccoli leaf area and shoot dry weight increased curvilinearly with K rate, with a maximum at 200 mg·liter −1.
- Taxon
- Broccoli
Brassica oleracea var. italicae1 - Treatment
- K ratee1
- Outcome
- leaf area and shoot dry weighte1
- Direction
- increased curvilinearlye1
- Value
- 200 mg·liter −1e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Broccoli leaf area and shoot dry weight increased curvilinearly with K rate with a maximum at 200 mg·liter −1”
Claim · model-written summary
In celery, K rates increased leaf area linearly.
- Taxon
- celery
%2C_Elswick%2C_Northumberland_4.jpg?width=60)
Apium graveolens Dulce Groupe1 - Treatment
- K ratese1
- Outcome
- leaf areae1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
%2C_Elswick%2C_Northumberland_4.jpg?width=500)
Verbatim
e1“For celery K rates increased leaf area linearly”
Claim · model-written summary
The effect of K rates on growth characteristics was generally a function of the N status.
- Taxon
- four vegetable speciest0
- Treatment
- K ratese1
- Outcome
- growth characteristicse1
- Qualifier
- function of the N statuse1
Not reportedDirection
Verbatim
t0“Four Vegetable Species”
e1“The effect of K rates on growth characteristics was generally a function of the N status”
Claim · model-written summary
The effect of K rates differed among species, with celery being the least affected.
Verbatim
e1“differed among species, celery being the least affected”
t0“Four Vegetable Species”
Claim · model-written summary
Under the high N rate, broccoli reached maximum percentage of shoot dry matter, root dry weight and root:shoot dry weight ratio at the intermediate K rate.
- Taxon
- broccoliBrassica oleracea var. italicae1
- Treatment
- intermediate K ratee1
- Outcome
- percentage of shoot dry matter, root dry weight, and root:shoot dry weight ratioe1
- Direction
- maximume1
- Qualifier
- Under the high N ratee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Under the high N rate, maximum percentage of shoot dry matter, root dry weight, and root:shoot dry weight ratio, as well as minimum specific leaf area of broccoli were obtained with the intermediate K rate”
Claim · model-written summary
Under the high N rate, broccoli had minimum specific leaf area at the intermediate K rate.
- Taxon
- broccoliBrassica oleracea var. italicae1
- Treatment
- intermediate K ratee1
- Outcome
- specific leaf areae1
- Direction
- minimume1
- Qualifier
- Under the high N ratee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Under the high N rate, maximum percentage of shoot dry matter, root dry weight, and root:shoot dry weight ratio, as well as minimum specific leaf area of broccoli were obtained with the intermediate K rate”
Claim · model-written summary
Increasing K rates under high N status enhanced both lettuce leaf area and dry matter accumulation.
- Taxon
- lettuce
Lactuca sativae1 - Treatment
- Increasing K ratese1
- Outcome
- leaf area and dry matter accumulatione1
- Direction
- enhancede1
- Qualifier
- under high N statuse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Increasing K rates under high N status enhanced both lettuce leaf area and dry matter accumulation”
Claim · model-written summary
In pepper, increasing K rates under high N status caused leaf expansion and resulted in more succulent plants.
- Taxon
- peppere2
- Treatment
- Increasing K rates under high N statuse1
- Outcome
- leaf expansion and resulted in more succulent plantse2
- Direction
- increaseinferrede2
Not reportedComparator
Verbatim
e1“Increasing K rates under high N status”
e2“For pepper, this caused leaf expansion and resulted in more succulent plants”
The same questions in other papers
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See all 23 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.