Abstract
Management practices can influence tomato ( Lycopersicon esculentum Mill.) yield and N uptake. The effects of tillage (no-till, chisel plowing, and moldboard plowing), cover crop [hairy vetch ( Vicia villosa Roth) vs. none], and N fertilization (0, 90, and 180 kg·ha -1 N) on transplanted tomato yield and N uptake were studied in the field from May to August in 1996 and 1997 on a Norfolk sandy loam (fine-loamy, siliceous, thermic, Typic Kandiudults) in central Georgia. Plowing increased fresh and dry fruit yield and N uptake in 1996 and N fertilization increased yield and N uptake in 1996 and 1997. Plowing also increased stem and leaf dry weights and N uptake from 40 to 118 days after transplanting (DAT) in 1996. Fertilization increased stem weight and N uptake with or without hairy vetch from 54 to 68 DAT in 1996 and stem and leaf weights and N uptake at 68 DAT in 1997. Both hairy vetch and N fertilization increased leaf N concentration in 1997. Recovery of N by the plants was lower with hairy vetch than with N fertilization, but was similar to or greater with 90 than with 180 kg·ha -1 N. We conclude that reduced tillage, such as chisel plowing, with 90 kg·ha -1 N can sustain tomato yield and N uptake, with reduced potentials of sediments and/or NO 3 contamination in surface and groundwater.
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Claims 10
Claim · model-written summary
Plowing increased tomato fresh and dry fruit yields and nitrogen uptake in 1996.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Plowinge0
- Outcome
- fresh and dry fruit yield and N uptakee0
- Direction
- increasede0
- Qualifier
- 1996e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plowing increased fresh and dry fruit yield and N uptake in 1996”
t0“Tomato Yield”
Claim · model-written summary
Nitrogen fertilization increased tomato yield and nitrogen uptake in 1996 and 1997.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- N fertilizatione0
- Outcome
- yield and N uptakee0
- Direction
- increasede0
- Qualifier
- 1996 and 1997e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fertilization increased yield and N uptake in 1996 and 1997”
t0“Tomato Yield”
Claim · model-written summary
Plowing increased tomato stem and leaf dry weights and nitrogen uptake during 40–118 DAT in 1996.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Plowinge0
- Outcome
- stem and leaf dry weights and N uptakee0
- Direction
- increasede0
- Qualifier
- 40 to 118 days after transplanting (DAT) in 1996e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plowing also increased stem and leaf dry weights and N uptake from 40 to 118 days after transplanting (DAT) in 1996”
t0“Tomato Yield”
Claim · model-written summary
Nitrogen fertilization increased stem weight and uptake with or without hairy vetch in 1996.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Fertilizatione0
- Outcome
- stem weight and N uptakee0
- Direction
- increasede0
- Qualifier
- with or without hairy vetch from 54 to 68 DAT in 1996e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization increased stem weight and N uptake with or without hairy vetch from 54 to 68 DAT in 1996”
t0“Tomato Yield”
Claim · model-written summary
Nitrogen fertilization increased tomato stem and leaf weights and nitrogen uptake at 68 DAT in 1997.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Fertilizatione0
- Outcome
- stem and leaf weights and N uptakee0
- Direction
- increasede0
- Qualifier
- 68 DAT in 1997e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization increased stem weight and N uptake with or without hairy vetch from 54 to 68 DAT in 1996 and stem and leaf weights and N uptake at 68 DAT in 1997”
t0“Tomato Yield”
Claim · model-written summary
Hairy vetch increased tomato leaf nitrogen concentration in 1997.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- hairy vetche0
- Outcome
- leaf N concentratione0
- Direction
- increasede0
- Qualifier
- 1997e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both hairy vetch and N fertilization increased leaf N concentration in 1997”
t0“Tomato Yield”
Claim · model-written summary
Nitrogen fertilization increased tomato leaf nitrogen concentration in 1997.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- N fertilizatione0
- Outcome
- leaf N concentratione0
- Direction
- increasede0
- Qualifier
- 1997e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both hairy vetch and N fertilization increased leaf N concentration in 1997”
t0“Tomato Yield”
Claim · model-written summary
Tomato nitrogen recovery was lower with hairy vetch than with nitrogen fertilization.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- hairy vetche0
- Outcome
- Recovery of Ne0
- Direction
- lowere0
- Comparator
- N fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of N by the plants was lower with hairy vetch than with N fertilization”
t0“Tomato Yield”
Claim · model-written summary
Nitrogen recovery with 90 kg per hectare nitrogen was similar to or greater than with 180 kg per hectare.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 90e0
- Outcome
- Recovery of Ne0
- Direction
- similar to or greatere0
- Comparator
- 180 kg·ha -1 Ne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of N by the plants was lower with hairy vetch than with N fertilization, but was similar to or greater with 90 than with 180 kg·ha -1 N”
t0“Tomato Yield”
Claim · model-written summary
The authors recommended chisel plowing with 90 kg per hectare nitrogen to sustain yield and uptake.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- chisel plowing, with 90 kg·ha -1 Ne0
- Outcome
- sustain tomato yield and N uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced tillage, such as chisel plowing, with 90 kg·ha -1 N can sustain tomato yield and N uptake”
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See all 978 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.