Paper · 2021 · Pure and Applied Biology

Fertilizer management for improving yield and quality of off-season tomatoes in high tunnel

Parvez Khan

15
claims
29
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

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

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Fertilizer applied at 7-day intervals gave a higher fruit yield than at 14-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 713–1058 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Fertilizer applied at 7-day intervals gave a higher fruit yield than at 21-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 713–1058 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The control had the minimum fruit yield, 0.5 t per 10 Marlas.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 713–1058 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Grade-A tomatoes above 100 g per fruit made up 62% of the fruit under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fruit density was 1.30 g/cm 3 under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Chlorophyll content (SPAD value) was 57.63 under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Total acidity was 0.44% under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Protein content was 15.4% under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Total soluble solids were 5.4 Brix under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fruit N content was 1.25% under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fruit P content was 0.20% under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Fruit K content was 1.45% under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Shelf-life was improved to 9 days under NPK at 7-day intervals.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
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”

✓ located verbatim in the source · abstract, characters 1060–1407 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Vitamin C concentration showed an increasing trend as the N dose decreased at all application times.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t1

“yield and quality of off-season tomatoes in high tunnel”

✓ located verbatim in the source · title, characters 36–91 · show in text ↑
e2

“The concentration of vitamin C showed increasing trend along with decrease in N dose at all application times”

✓ located verbatim in the source · abstract, characters 1409–1518 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

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.

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.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

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”

✓ located verbatim in the source · abstract, characters 1520–1699 · show in text ↑

fertilization · yield · Solanum lycopersicum (tomato)Positive and negative results

978 papers: 850 positive, 128 negative or no effect

849 papers in the same direction as this paper · 104 in the opposite direction · 24 reporting no difference from an alternative

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  3. negative

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