Abstract
Information on the tillage requirements of tomato is inadequate and contradictory. Five tillage methods were compared as to their effect on soil physical and chemical properties, leaf nutrient concentration and yield of tomato (Lycopersicon esculentum, Mill). Tillage methods compared during 2006 and 2007 for the early and late seasons on Oxic Tropuldalf at Owo in rainforest zone of Nigeria were manual clearing, manual mounding, ploughing, ploughing plus harrowing and ploughing plus harrowing plus ridging. Ploughing plus harrowing plus ridging produced the highest mean fruit weight (8.16 t/ha), plant height, tap root length followed by manual mounding (7.05 t/ha), ploughing plus harrowing (6.24 t/ha) and ploughing (5.81 t/ha). The lowest yield (5.03 t/ha) was produced by manual clearing. The tillage treatments had lower bulk densities and higher leaf N, P, K, Ca and Mg compared with manual clearing. Soil bulk density was negatively correlated with leaf nutrient concentration in both years. Ploughing plus harrowing plus ridging improved nutrient availability and yield of tomato on an Alfisol because of reduced soil bulk density. Compared with manual clearing, manual mounding, ploughing, ploughing plus harrowing and ploughing plus harrowing plus ridging increased tomato fruit yield by 40, 16, 24 and 62%, respectively. Ploughing plus harrowing plus ridging is recommended for commercial production of tomato on Alfisol of humid tropics.
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Claims 16
Claim · model-written summary
Ploughing plus harrowing plus ridging gave the highest tomato mean fruit weight, 8.16 t/ha.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- Ploughing plus harrowing plus ridginge0
- Outcome
- mean fruit weighte0
- Direction
- higheste0
- Value
- 8.16 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ploughing plus harrowing plus ridging produced the highest mean fruit weight (8.16 t/ha), plant height, tap root length followed by manual mounding (7.05 t/ha), ploughing plus harrowing (6.24 t/ha) and ploughing (5.81 t/ha)”
t0“Tomato”
Claim · model-written summary
Ploughing plus harrowing plus ridging gave the highest tomato plant height and tap root length.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Ploughing plus harrowing plus ridginge0
- Outcome
- plant height, tap root lengthe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ploughing plus harrowing plus ridging produced the highest mean fruit weight (8.16 t/ha), plant height, tap root length”
t0“Tomato”
Claim · model-written summary
Manual mounding gave tomato fruit yield of 7.05 t/ha.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- manual moundinge0
- Outcome
- mean fruit weighte1
- Value
- 7.05 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“manual mounding (7.05 t/ha)”
e1“mean fruit weight”
t0“Tomato”
Claim · model-written summary
Ploughing plus harrowing gave tomato fruit yield of 6.24 t/ha.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ploughing plus harrowinge0
- Outcome
- mean fruit weighte1
- Value
- 6.24 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ploughing plus harrowing (6.24 t/ha)”
e1“mean fruit weight”
t0“Tomato”
Claim · model-written summary
Ploughing gave tomato fruit yield of 5.81 t/ha.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- ploughinge0
- Outcome
- mean fruit weighte1
- Value
- 5.81 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ploughing (5.81 t/ha)”
e1“mean fruit weight”
t0“Tomato”
Claim · model-written summary
Manual clearing gave the lowest tomato yield, 5.03 t/ha.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- manual clearinge0
- Outcome
- yielde0
- Direction
- loweste0
- Value
- 5.03 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lowest yield (5.03 t/ha) was produced by manual clearing.”
t0“Tomato”
Claim · model-written summary
Tillage treatments lowered soil bulk density relative to manual clearing.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- tillage treatmentse0
- Outcome
- bulk densitiese0
- Direction
- lowere0
- Comparator
- manual clearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tillage treatments had lower bulk densities and higher leaf N, P, K, Ca and Mg compared with manual clearing.”
t0“Tomato”
Claim · model-written summary
Tillage treatments raised tomato leaf N, P and K relative to manual clearing.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- tillage treatmentse0
- Outcome
- leaf N, P, Ke0
- Direction
- highere0
- Comparator
- manual clearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tillage treatments had lower bulk densities and higher leaf N, P, K, Ca and Mg compared with manual clearing.”
t0“Tomato”
Claim · model-written summary
Tillage treatments raised tomato leaf Ca and Mg relative to manual clearing.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- tillage treatmentse0
- Outcome
- Ca and Mge0
- Direction
- highere0
- Comparator
- manual clearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The tillage treatments had lower bulk densities and higher leaf N, P, K, Ca and Mg compared with manual clearing.”
t0“Tomato”
Claim · model-written summary
Soil bulk density was negatively correlated with tomato leaf nutrient concentration in both years.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- leaf nutrient concentratione0
- Direction
- negatively correlatede0
- Setting
- both yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil bulk density was negatively correlated with leaf nutrient concentration in both years.”
t0“Tomato”
Claim · model-written summary
The authors attributed improved nutrient availability and tomato yield under ridging to reduced soil bulk density.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Ploughing plus harrowing plus ridginge0
- Outcome
- nutrient availability and yielde0
- Qualifier
- because of reduced soil bulk densitye0
- Setting
- Alfisole0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ploughing plus harrowing plus ridging improved nutrient availability and yield of tomato on an Alfisol because of reduced soil bulk density.”
Claim · model-written summary
Manual mounding increased tomato fruit yield by 40% compared with manual clearing.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- manual moundinge0
- Outcome
- fruit yielde0
- Direction
- increasede0
- Value
- 40e0
- Comparator
- manual clearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with manual clearing, manual mounding, ploughing, ploughing plus harrowing and ploughing plus harrowing plus ridging increased tomato fruit yield by 40, 16, 24 and 62%, respectively.”
Claim · model-written summary
Ploughing increased tomato fruit yield by 16% compared with manual clearing.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ploughinge0
- Outcome
- fruit yielde0
- Direction
- increasede0
- Value
- 16e0
- Comparator
- manual clearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with manual clearing, manual mounding, ploughing, ploughing plus harrowing and ploughing plus harrowing plus ridging increased tomato fruit yield by 40, 16, 24 and 62%, respectively.”
Claim · model-written summary
Ploughing plus harrowing increased tomato fruit yield by 24% compared with manual clearing.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ploughing plus harrowinge0
- Outcome
- fruit yielde0
- Direction
- increasede0
- Value
- 24e0
- Comparator
- manual clearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with manual clearing, manual mounding, ploughing, ploughing plus harrowing and ploughing plus harrowing plus ridging increased tomato fruit yield by 40, 16, 24 and 62%, respectively.”
Claim · model-written summary
Ploughing plus harrowing plus ridging increased tomato fruit yield by 62% compared with manual clearing.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- ploughing plus harrowing plus ridginge0
- Outcome
- fruit yielde0
- Direction
- increasede0
- Value
- 62%e0
- Comparator
- manual clearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with manual clearing, manual mounding, ploughing, ploughing plus harrowing and ploughing plus harrowing plus ridging increased tomato fruit yield by 40, 16, 24 and 62%, respectively.”
Claim · model-written summary
The authors recommended ploughing plus harrowing plus ridging for commercial tomato production on humid tropical Alfisol.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- Ploughing plus harrowing plus ridging is recommended for commercial productione0
- Setting
- Alfisol of humid tropicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ploughing plus harrowing plus ridging is recommended for commercial production of tomato on Alfisol of humid tropics.”
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See all 56 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.