Paper · 2020 · International Journal of Agronomy

Effect of N : P : K (15 : 15 : 15) on the Growth of Punica granatum L. Seedlings

Steven T. Mensah; Edache B. Ochekwu; Uchechukwu G. Mgbedo; et al.

4
claims
8
verbatim quotes
7
citations
2
research areas
✓
Open access · cc-by

Abstract

This study was conducted to determine the effect of NPK (15 : 15 : 15) fertilizer on some growth parameters of Punica granatum seedlings towards establishing the fertilizer amount optimal for the growth of P. granatum . Planting bags containing 23.3 kg of soil were used for planting the seeds of Punica granatum , and the soil was treated with different amounts of NPK 15 : 15 : 15 fertilizer ( T 1 = 0 g, T 2 = 1 g, T 3 = 2 g, T 4 = 3 g, and T 5 = 4 g) and watered daily with borehole water. The experiment was laid out in a completely randomized design with four replicates. Data were taken on the number of leaves (NOL), height of plant (HOP), and area of leaves (AOL) every three weeks for fifteen (15) weeks after planting. Results obtained using the Ochekwu Comparative Treatment Average (OCTA) trend showed that all the parameters under investigation increased significantly with an increase in fertilizer amount compared to the control. The optimum growth was observed to range between T3 and T4 for the number of leaves, height of plant, and area of leaves parameters studied. It was also observed that the increment of fertilizer amounts beyond this optimum point reduced biological yield previously obtained. Hence, for the optimum growth of P. granatum seedlings, NPK (15 : 15 : 15) fertilizer should be applied within the range of T3 and T4 or any other measurement that falls within the concentration range of T3 (0.09 g NPK kg −1 soil) and T4 (0.13 g NPK kg −1 soil) in the Niger Delta of Nigeria.

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Claims 4

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing NPK fertilizer amount significantly increased all growth parameters compared with the control.

Taxon
Punica granatumPunica granatumt0
Treatment
fertilizer amounte1
Outcome
all the parameters under investigatione1
Direction
increasede1
Comparator
controle1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Growth of Punica granatum L. Seedlings”

✓ located verbatim in the source · title, characters 42–80 · show in text ↑
e1

“all the parameters under investigation increased significantly with an increase in fertilizer amount compared to the control”

✓ located verbatim in the source · abstract, characters 820–944 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Growth was optimum between T3 and T4 for number of leaves, plant height and leaf area.

Taxon
Punica granatumPunica granatumt0
Treatment
T3 and T4e2
Outcome
number of leaves, height of plant, and area of leavese2

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Growth of Punica granatum L. Seedlings”

✓ located verbatim in the source · title, characters 42–80 · show in text ↑
e2

“The optimum growth was observed to range between T3 and T4 for the number of leaves, height of plant, and area of leaves parameters studied”

✓ located verbatim in the source · abstract, characters 946–1085 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Fertilizer amounts beyond the optimum point reduced biological yield.

Taxon
Punica granatumPunica granatumt0
Treatment
increment of fertilizer amounts beyond this optimum pointe3
Outcome
biological yielde3
Direction
reducede3
Comparator
optimum pointe3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Growth of Punica granatum L. Seedlings”

✓ located verbatim in the source · title, characters 42–80 · show in text ↑
e3

“It was also observed that the increment of fertilizer amounts beyond this optimum point reduced biological yield previously obtained”

✓ located verbatim in the source · abstract, characters 1087–1219 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

NPK (15:15:15) fertilizer should be applied within the T3 to T4 range for optimum seedling growth.

Taxon
Punica granatumPunica granatumt0
Outcome
NPK (15 : 15 : 15) fertilizer should be applied within the range of T3 and T4e4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Punica granatum
Punica granatum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Growth of Punica granatum L. Seedlings”

✓ located verbatim in the source · title, characters 42–80 · show in text ↑
e4

“for the optimum growth of P. granatum seedlings, NPK (15 : 15 : 15) fertilizer should be applied within the range of T3 and T4”

✓ located verbatim in the source · abstract, characters 1228–1354 · show in text ↑

fertilization · yield · Punica granatum (pomegranate)Positive and negative results

40 papers: 38 positive, 2 negative or no effect

1 paper in the same direction as this paper · 38 in the opposite direction

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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.