Abstract
A field experiment was conducted on vertisol at Ambo University College (Ethiopia) during 2003/2004 and 2004/2005 cropping seasons to investigate the response of tomato cultivars varying in growth habit to rates of Nitrogen (N) and Phosphorus (P) fertilizers and plant spacing. The treatment consisted of factorial combination of two cultivars (Margelobe and Melka shola), three NP fertilizers rates (50 kg N + 60 kg P2O5/ha, 80 kg N + 90 kg P2O5/ha and 110 kg N + 120 kg P2O5/ha) and three spacing (100 cm x 30 cm, 80 cm x 30 cm and 60 cm x 45 cm) arranged in a Randomized Complete Block Design. Results revealed that fertilizer rates and spacing significantly affected the total and marketable fruit yields as well as % marketable fruit yield. Similarly, plant vigor (plant height), number of fruits per cluster and 10 fruit weight were significantly influenced by all of the main factors. Besides the main factors effect, fertilizer rate*spacing and cultivar*spacing interaction effects were also observed on % marketable fruit yield and 10 fruit weight, respectively. The results of 2003/2004 cropping season showed that the application of 110 kg N + 120 kg P2O5/ha or 80 kg N + 90 kg P2O5/ha resulted in significantly higher total as well as marketable fruit yield of the tomato cultivars. Result of 2004/2005 cropping season, however, demonstrated that only the application the highest fertilizer rate (110 kg N + 120 kg P2O5/ha ) resulted in superior fruit yields whilst the other two rates did not significantly differ from each other in affecting fruit yields. Results of both cropping seasons confirmed significantly higher % marketable fruit yield due to the application of either 110 kg N + 120 kg P2O5/ha or 80 kg N + 90 kg P2O5/ha. Closer spacing of 80 cm x 30 cm and 60 cm x 45 cm gave higher total as well as marketable fruit yield than the wider spacing of 100 cm x 30 cm.
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Claims 13
Claim · model-written summary
NP fertilizer rates significantly affected total and marketable fruit yields and % marketable fruit yield.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- fertilizer ratese0
- Outcome
- total and marketable fruit yields as well as % marketable fruit yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer rates and spacing significantly affected the total and marketable fruit yields as well as % marketable fruit yield”
t0“tomato”
Claim · model-written summary
Plant spacing significantly affected total and marketable fruit yields and % marketable fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- spacinge0
- Outcome
- total and marketable fruit yields as well as % marketable fruit yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer rates and spacing significantly affected the total and marketable fruit yields as well as % marketable fruit yield”
t0“tomato”
Claim · model-written summary
Plant height, number of fruits per cluster and 10 fruit weight were significantly influenced by all main factors.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- main factorse0
- Outcome
- plant vigor (plant height), number of fruits per cluster and 10 fruit weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant vigor (plant height), number of fruits per cluster and 10 fruit weight were significantly influenced by all of the main factors”
t0“tomato”
Claim · model-written summary
The fertilizer rate by spacing interaction affected % marketable fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- fertilizer rate*spacinge0
- Outcome
- % marketable fruit yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer rate*spacing and cultivar*spacing interaction effects were also observed on % marketable fruit yield and 10 fruit weight, respectively”
t0“tomato”
Claim · model-written summary
The cultivar by spacing interaction affected 10 fruit weight.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- cultivar*spacinge0
- Outcome
- 10 fruit weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer rate*spacing and cultivar*spacing interaction effects were also observed on % marketable fruit yield and 10 fruit weight, respectively”
t0“tomato”
Claim · model-written summary
In 2003/2004, 110 kg N + 120 kg P2O5/ha resulted in significantly higher total and marketable fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 110 kg N + 120 kg P2O5/hae0
- Outcome
- total as well as marketable fruit yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 110 kg N + 120 kg P2O5/ha or 80 kg N + 90 kg P2O5/ha resulted in significantly higher total as well as marketable fruit yield”
t0“tomato”
Claim · model-written summary
In 2003/2004, 80 kg N + 90 kg P2O5/ha resulted in significantly higher total and marketable fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 80 kg N + 90 kg P2O5/hae0
- Outcome
- total as well as marketable fruit yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of 110 kg N + 120 kg P2O5/ha or 80 kg N + 90 kg P2O5/ha resulted in significantly higher total as well as marketable fruit yield”
t0“tomato”
Claim · model-written summary
In 2004/2005, only the highest fertilizer rate (110 kg N + 120 kg P2O5/ha) resulted in superior fruit yields.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 110 kg N + 120 kg P2O5/hae0
- Outcome
- superior fruit yieldse0
- Direction
- superiore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only the application the highest fertilizer rate (110 kg N + 120 kg P2O5/ha ) resulted in superior fruit yields”
t0“tomato”
Claim · model-written summary
In 2004/2005, the other two fertilizer rates did not differ significantly from each other in fruit yields.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- the other two ratese0
- Outcome
- fruit yieldse0
- Direction
- no_changeinferrede0
- Comparator
- each othere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the other two rates did not significantly differ from each other in affecting fruit yields”
t0“tomato”
Claim · model-written summary
Across both seasons, 110 kg N + 120 kg P2O5/ha gave significantly higher % marketable fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 110 kg N + 120 kg P2O5/hae0
- Outcome
- % marketable fruit yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results of both cropping seasons confirmed significantly higher % marketable fruit yield due to the application of either 110 kg N + 120 kg P2O5/ha or 80 kg N + 90 kg P2O5/ha”
t0“tomato”
Claim · model-written summary
Across both seasons, 80 kg N + 90 kg P2O5/ha gave significantly higher % marketable fruit yield.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 80 kg N + 90 kg P2O5/hae0
- Outcome
- % marketable fruit yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results of both cropping seasons confirmed significantly higher % marketable fruit yield due to the application of either 110 kg N + 120 kg P2O5/ha or 80 kg N + 90 kg P2O5/ha”
t0“tomato”
Claim · model-written summary
Closer spacing of 80 cm x 30 cm gave higher total and marketable fruit yield than the wider 100 cm x 30 cm spacing.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Closer spacing of 80 cm x 30 cme0
- Outcome
- total as well as marketable fruit yielde0
- Direction
- highere0
- Comparator
- wider spacing of 100 cm x 30 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Closer spacing of 80 cm x 30 cm and 60 cm x 45 cm gave higher total as well as marketable fruit yield than the wider spacing of 100 cm x 30 cm”
t0“tomato”
Claim · model-written summary
Closer spacing of 60 cm x 45 cm gave higher total and marketable fruit yield than the wider 100 cm x 30 cm spacing.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 60 cm x 45 cme0
- Outcome
- total as well as marketable fruit yielde0
- Direction
- highere0
- Comparator
- wider spacing of 100 cm x 30 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Closer spacing of 80 cm x 30 cm and 60 cm x 45 cm gave higher total as well as marketable fruit yield than the wider spacing of 100 cm x 30 cm”
t0“tomato”
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