Abstract
Abstract ‘Winter Bloomsdale’ spinach plants were grown in a growth chamber with a light intensity of 2400 ft-c until 2 weeks before harvest when light intensity treatments of 600, 1600, 2400, and 3500 ft-c were imposed. The total N and NO 3 concn of the leaves were increased by the addition of N to the soil and by reduction of light intensity. At 600 ft-c the plants accumulated NO 3 -N and total N at all soil N levels, but response to soil increments of N was greater at higher light intensities. The concn of K in the tissue increased with a reduction in the light intensity from 2400 to 600 ft-c or application of N fertilizer to 200 mg/kg of soil. Less P was found in spinach leaves as N fertilizer was added to 100 mg/kg of soil. The P content was variable with light intensity.
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Claims 10
Claim · model-written summary
Adding soil N increased leaf total N concentration.
- Taxon
- Spinach
Spinacia oleraceat0 - Organ / stage
- leavese0
- Treatment
- addition of N to the soile0
- Outcome
- total Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total N and NO 3 concn of the leaves were increased by the addition of N to the soil”
t0“Spinach”
Claim · model-written summary
Adding soil N increased leaf nitrate concentration.
- Taxon
- SpinachSpinacia oleraceat0
- Organ / stage
- leavese0
- Treatment
- addition of N to the soile0
- Outcome
- NO 3 concne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total N and NO 3 concn of the leaves were increased by the addition of N to the soil”
t0“Spinach”
Claim · model-written summary
Reduced light increased leaf total N concentration.
- Taxon
- SpinachSpinacia oleraceat0
- Organ / stage
- leavese0
- Treatment
- reduction of light intensitye0
- Outcome
- total Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total N and NO 3 concn of the leaves were increased by the addition of N to the soil and by reduction of light intensity”
t0“Spinach”
Claim · model-written summary
Reduced light increased leaf nitrate concentration.
- Taxon
- SpinachSpinacia oleraceat0
- Organ / stage
- leavese0
- Treatment
- reduction of light intensitye0
- Outcome
- NO 3 concne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total N and NO 3 concn of the leaves were increased by the addition of N to the soil and by reduction of light intensity”
t0“Spinach”
Claim · model-written summary
At 600 ft-c, spinach accumulated NO 3 -N and total N at all soil N levels.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- 600 ft-ce0
- Outcome
- accumulated NO 3 -N and total Ne0
- Qualifier
- all soil N levelse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 600 ft-c the plants accumulated NO 3 -N and total N at all soil N levels”
t0“Spinach”
Claim · model-written summary
Response to increasing soil N was greater at higher light intensities.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- higher light intensitiese0
- Outcome
- response to soil increments of Ne0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“response to soil increments of N was greater at higher light intensities”
t0“Spinach”
Claim · model-written summary
Reducing light from 2400 to 600 ft-c increased tissue K concentration.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- reduction in the light intensity from 2400 to 600 ft-ce0
- Outcome
- concn of K in the tissuee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“concn of K in the tissue increased with a reduction in the light intensity from 2400 to 600 ft-c”
t0“Spinach”
Claim · model-written summary
N fertilizer at 200 mg/kg soil increased tissue K concentration.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- application of N fertilizer to 200 mg/kg of soile0
- Outcome
- concn of K in the tissuee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“concn of K in the tissue increased with a reduction in the light intensity from 2400 to 600 ft-c or application of N fertilizer to 200 mg/kg of soil”
t0“Spinach”
Claim · model-written summary
Adding N fertilizer to 100 mg/kg soil reduced leaf P.
- Taxon
- spinachSpinacia oleraceae0
- Organ / stage
- leavese0
- Treatment
- N fertilizer was added to 100 mg/kg of soile0
- Outcome
- Pe0
- Direction
- Lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Less P was found in spinach leaves as N fertilizer was added to 100 mg/kg of soil”
Claim · model-written summary
Leaf P content varied with light intensity.
- Taxon
- SpinachSpinacia oleraceat0
- Treatment
- light intensitye0
- Outcome
- P contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P content was variable with light intensity”
t0“Spinach”