Abstract
The goal of this study was to evaluate how tomato yield, vegetative dry matter, leaf area index (LAI), and photosynthesis (P n ) responded to winter cover crop and recommended fertilizer N rates. The following winter/spring fertility treatments were applied using randomized complete block design with four replications: 1) 0 N winter /0 N spring, 2) 0 N winter/90 kg·ha –1 N spring, 3) 0 N winter/180 kg·ha –1 N spring, 4) 0 N winter + abruzi rye/0 N spring, 5) 0 N winter + hairy vetch/0 N spring, and 6) 0 N winter + crimson clover/0 N spring. In Spring 1997, `Mountain Pride' tomatoes were transplanted in all plots. Whole plant dry matter, LAI and P n were measured at flowering, fruiting and prior to senescence, while seasonal yield was compiled over 6 weeks. Tomatoes preceded by Vetch produced highest plant dry matter (243.0 g/plant) prior to senescence, highest LAI (3.07) at fruiting and highest P (8.98 μmol CO 2 /m 2 per s) during flowering. Total yield were highest (60.9 Mg·ha –1 ) at 180 kg·ha –1 N and lowest (35.3 Mg·ha –1 ) in control. Supplemental N from legume and grain cover crops affected plant dry weight, LAI, P n , and yield comparable to those receiving synthetic N. Results of this study indicate that cover crop treatments were as effective as N fertilizer in supporting tomato yield, vegetative growth, LAI, and photosynthesis.
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Claims 6
Claim · model-written summary
Vetch preceded tomatoes had the highest dry matter, 243.0 g/plant, before senescence.
- Taxon
- Tomatoes
Solanum lycopersicume0 - Organ / stage
- prior to senescencee0
- Treatment
- Vetche0
- Outcome
- plant dry mattere0
- Direction
- higheste0
- Value
- 243.0 g/plante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes preceded by Vetch produced highest plant dry matter (243.0 g/plant) prior to senescence”
Claim · model-written summary
Vetch preceded tomatoes had the highest LAI, 3.07, at fruiting.
- Taxon
- TomatoesSolanum lycopersicume0
- Organ / stage
- at fruitinge0
- Treatment
- Vetche0
- Outcome
- LAIe0
- Direction
- higheste0
- Value
- 3.07e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes preceded by Vetch produced highest plant dry matter (243.0 g/plant) prior to senescence, highest LAI (3.07) at fruiting”
Claim · model-written summary
Vetch preceded tomatoes had the highest photosynthesis, 8.98 μmol CO 2 /m 2 per s, during flowering.
- Taxon
- TomatoesSolanum lycopersicume0
- Organ / stage
- during floweringe0
- Treatment
- Vetche0
- Outcome
- Pe0
- Direction
- higheste0
- Value
- 8.98 μmol CO 2 /m 2 per se0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes preceded by Vetch produced highest plant dry matter (243.0 g/plant) prior to senescence, highest LAI (3.07) at fruiting and highest P (8.98 μmol CO 2 /m 2 per s) during flowering”
Claim · model-written summary
Total yield was highest at 180 kg·ha –1 N, reaching 60.9 Mg·ha –1.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- 180 kg·ha –1 Ne0
- Outcome
- Total yielde0
- Direction
- higheste0
- Value
- 60.9 Mg·ha –1e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yield were highest (60.9 Mg·ha –1 ) at 180 kg·ha –1 N and lowest (35.3 Mg·ha –1 ) in control”
t0“Tomato”
Claim · model-written summary
Control tomato yield was lowest at 35.3 Mg·ha –1.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- controle0
- Outcome
- Total yielde0
- Direction
- loweste0
- Value
- 35.3 Mg·ha –1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total yield were highest (60.9 Mg·ha –1 ) at 180 kg·ha –1 N and lowest (35.3 Mg·ha –1 ) in control”
t0“Tomato”
Claim · model-written summary
Cover crops performed comparably to synthetic N for dry weight, LAI, photosynthesis, and yield.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- legume and grain cover cropse0
- Outcome
- plant dry weight, LAI, P n , and yielde0
- Direction
- comparablee0
- Comparator
- synthetic Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplemental N from legume and grain cover crops affected plant dry weight, LAI, P n , and yield comparable to those receiving synthetic N”
t0“Tomato”
The same questions in other papers
cover crop · growth · Solanum lycopersicum (tomato)Positive and negative results
4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
2 papers more in this group
See all 6 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.