Abstract
Tomato is well known for its quality and nutritional value all over the world but untimely and imbalanced fertilizer application has a severe effect on yield & quality of tomato. To investigate the effect of specific timing of fertilizer application for off-season tomato (Sahel hybrid), a study was conducted at Nuclear Institute for Food and Agriculture (NIFA), Peshawar. Nitrogen, phosphorus and potassium (NPK) fertilizers were applied at the rate of 10-10-15 kg ha -1 at 7, 14 and 21 days intervals, starting after establishment of crop (30 days after transplanting) till mid of June. The current study was carried out under randomized complete block (RCB) design having three replicates of four treatments. The maximum fruit yield (2.94 t/ 10 Marla tunnel) was recorded in the treatment receiving NPK @ 10-10-15 kg ha -1 at 7 days interval that was significantly (P0.05) higher as compared to those fertilized at 14 days (1.75 t/ 10 Marla tunnel) and 21 days (0.83 t/ 10 Marla tunnel) intervals, while minimum (0.5 t/ 10 Marlas) was recorded in control. Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals. The concentration of vitamin C showed increasing trend along with decrease in N dose at all application times. This study suggested that application of timely and balanced fertilizer may be a good strategy to get higher and good quality yield of off-seasonally grown tomatoes in the tunnels.
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Claims 15
Claim · model-written summary
Fertilizer applied at 7-day intervals gave a higher fruit yield than at 14-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK @ 10-10-15 kg ha -1 at 7 days intervale0
- Outcome
- fruit yielde0
- Direction
- highere0
- Value
- 2.94 t/ 10 Marla tunnele0
- Qualifier
- 1.75 t/ 10 Marla tunnele0
- Comparator
- 14 dayse0
- Setting
- high tunnelt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e0“The maximum fruit yield (2.94 t/ 10 Marla tunnel) was recorded in the treatment receiving NPK @ 10-10-15 kg ha -1 at 7 days interval that was significantly (P0.05) higher as compared to those fertilized at 14 days (1.75 t/ 10 Marla tunnel) and 21 days (0.83 t/ 10 Marla tunnel) intervals, while minimum (0.5 t/ 10 Marlas) was recorded in control”
Claim · model-written summary
Fertilizer applied at 7-day intervals gave a higher fruit yield than at 21-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK @ 10-10-15 kg ha -1 at 7 days intervale0
- Outcome
- fruit yielde0
- Direction
- highere0
- Value
- 2.94 t/ 10 Marla tunnele0
- Qualifier
- 0.83 t/ 10 Marla tunnele0
- Comparator
- 21 dayse0
- Setting
- high tunnelt1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e0“The maximum fruit yield (2.94 t/ 10 Marla tunnel) was recorded in the treatment receiving NPK @ 10-10-15 kg ha -1 at 7 days interval that was significantly (P0.05) higher as compared to those fertilized at 14 days (1.75 t/ 10 Marla tunnel) and 21 days (0.83 t/ 10 Marla tunnel) intervals, while minimum (0.5 t/ 10 Marlas) was recorded in control”
Claim · model-written summary
The control had the minimum fruit yield, 0.5 t per 10 Marlas.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Outcome
- fruit yielde0
- Value
- 0.5 t/ 10 Marlase0
- Qualifier
- was recorded in controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e0“The maximum fruit yield (2.94 t/ 10 Marla tunnel) was recorded in the treatment receiving NPK @ 10-10-15 kg ha -1 at 7 days interval that was significantly (P0.05) higher as compared to those fertilized at 14 days (1.75 t/ 10 Marla tunnel) and 21 days (0.83 t/ 10 Marla tunnel) intervals, while minimum (0.5 t/ 10 Marlas) was recorded in control”
Claim · model-written summary
Grade-A tomatoes above 100 g per fruit made up 62% of the fruit under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- grade-A tomatoes having above 100 g weight per fruite1
- Value
- 62%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Fruit density was 1.30 g/cm 3 under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- densitye1
- Value
- 1.30 g/cm 3e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Chlorophyll content (SPAD value) was 57.63 under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- chlorophyll content / SPAD valuee1
- Value
- 57.63e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Total acidity was 0.44% under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- total aciditye1
- Value
- 0.44%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Protein content was 15.4% under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- protein contente1
- Value
- 15.4%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Total soluble solids were 5.4 Brix under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- total soluble solidse1
- Value
- 5.4 Brixe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Fruit N content was 1.25% under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- Ne1
- Value
- 1.25%e1
- Qualifier
- in fruite1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Fruit P content was 0.20% under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- Pe1
- Value
- 0.20%e1
- Qualifier
- in fruite1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Fruit K content was 1.45% under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- Ke1
- Value
- 1.45%e1
- Qualifier
- in fruite1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Shelf-life was improved to 9 days under NPK at 7-day intervals.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- NPK application at 7 days intervalse1
- Outcome
- improved shelf-lifee1
- Value
- 9 dayse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e1“Maximum grade-A tomatoes having above 100 g weight per fruit (62%), density (1.30 g/cm 3 ), chlorophyll content / SPAD value (57.63), total acidity (0.44%), protein content (15.4%), total soluble solids (5.4 Brix), N (1.25%), P (0.20%), K (1.45%) in fruit and improved shelf-life (9 days) were recorded with the NPK application at 7 days intervals”
Claim · model-written summary
Vitamin C concentration showed an increasing trend as the N dose decreased at all application times.
- Taxon
- tomatoes
Solanum lycopersicumt1 - Treatment
- decrease in N dosee2
- Outcome
- concentration of vitamin Ce2
- Direction
- increasing trende2
- Qualifier
- at all application timese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t1“yield and quality of off-season tomatoes in high tunnel”
e2“The concentration of vitamin C showed increasing trend along with decrease in N dose at all application times”
Claim · model-written summary
Timely and balanced fertilizer application may be a good strategy for higher, good-quality yield of off-season tomatoes in tunnels.
- Taxon
- tomatoes
Solanum lycopersicume3 - Treatment
- application of timely and balanced fertilizere3
- Outcome
- higher and good quality yielde3
- Setting
- the tunnelse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“This study suggested that application of timely and balanced fertilizer may be a good strategy to get higher and good quality yield of off-seasonally grown tomatoes in the tunnels”
The same questions in other papers
fertilization · yield · Solanum lycopersicum (tomato)Positive and negative results
849 papers in the same direction as this paper · 104 in the opposite direction · 24 reporting no difference from an alternative
- positive
- no effect
- negative
974 papers more in this group
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.