Paper · 2021 · Agricultural Science Digest - A Research Journal

Effect of Organic Manures Application on Soil Physicochemical Properties of Coarse-textured Ultisol and Okra Productivity in Nsukka, Southeastern Nigeria

C.V. Azuka; Matthew Chukwuemeka Idu

8
claims
15
verbatim quotes
4
citations
2
research areas
✓
Open access

Abstract

Background: The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria. Methods: The PM and PS were applied at three different rates (10, 20 and 40 t ha-1) as well as no amendment as control and the recommended NPK fertilizer (300 kg/ha) and replicated five times. Soil and agronomic data collected were analyzed for variance (ANOVA) using Genstat 4.0. Result: The PM and PS significantly (p less than 0.05) improved soil pH, soil organic matter, available phosphorous, total nitrogen, aggregate stability, mean weight diameter, bulk density, porosity and saturated hydraulic conductivity in greenhouse and field studies. Significant improvement in CEC was obtained in the field study. The PM and PS significantly (p less than 0.05) improved agronomic parameters e.g. plant height, number of leaves, biomass weight and yield of okra than the control. Poultry manure showed its superiority over other amendments in improving soil and agronomic properties. The study recommended 20 t ha-1 of PM and 40 t ha-1 of PS for sustainable soil and optimum productivity of okra in Nsukka, southeastern Nigeria.

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Claims 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Poultry manure and pig slurry significantly improved soil pH, soil organic matter and available phosphorus in greenhouse and field studies.

Treatment
PM and PSe1
Outcome
soil pH, soil organic matter, available phosphorouse1
Direction
improvede1
Setting
greenhouse and field studiese1

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 12–292 · show in text ↑
e1

“The PM and PS significantly (p less than 0.05) improved soil pH, soil organic matter, available phosphorous, total nitrogen, aggregate stability, mean weight diameter, bulk density, porosity and saturated hydraulic conductivity in greenhouse and field studies”

✓ located verbatim in the source · abstract, characters 583–842 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Poultry manure and pig slurry significantly improved total nitrogen, aggregate stability and mean weight diameter in greenhouse and field studies.

Treatment
PM and PSe1
Outcome
total nitrogen, aggregate stability, mean weight diametere1
Direction
improvede1
Setting
greenhouse and field studiese1

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 12–292 · show in text ↑
e1

“The PM and PS significantly (p less than 0.05) improved soil pH, soil organic matter, available phosphorous, total nitrogen, aggregate stability, mean weight diameter, bulk density, porosity and saturated hydraulic conductivity in greenhouse and field studies”

✓ located verbatim in the source · abstract, characters 583–842 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Poultry manure and pig slurry significantly improved bulk density, porosity and saturated hydraulic conductivity in greenhouse and field studies.

Treatment
PM and PSe1
Outcome
bulk density, porosity and saturated hydraulic conductivitye1
Direction
improvede1
Setting
greenhouse and field studiese1

Not reportedComparator

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 12–292 · show in text ↑
e1

“The PM and PS significantly (p less than 0.05) improved soil pH, soil organic matter, available phosphorous, total nitrogen, aggregate stability, mean weight diameter, bulk density, porosity and saturated hydraulic conductivity in greenhouse and field studies”

✓ located verbatim in the source · abstract, characters 583–842 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Soil cation exchange capacity showed a significant improvement in the field study.

Outcome
improvement in CECe1
Setting
field studye1

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 12–292 · show in text ↑
e1

“Significant improvement in CEC was obtained in the field study”

✓ located verbatim in the source · abstract, characters 844–906 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Poultry manure and pig slurry significantly improved plant height, number of leaves and biomass weight of okra compared with the control.

Treatment
PM and PSe2
Outcome
plant height, number of leaves, biomass weighte2
Direction
improvede2
Comparator
the controle2

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 12–292 · show in text ↑
e2

“The PM and PS significantly (p less than 0.05) improved agronomic parameters e.g. plant height, number of leaves, biomass weight and yield of okra than the control”

✓ located verbatim in the source · abstract, characters 908–1071 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Poultry manure and pig slurry significantly improved okra yield compared with the control.

Treatment
PM and PSe2
Outcome
yielde2
Direction
improvede2
Comparator
the controle2

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 12–292 · show in text ↑
e2

“The PM and PS significantly (p less than 0.05) improved agronomic parameters e.g. plant height, number of leaves, biomass weight and yield of okra than the control”

✓ located verbatim in the source · abstract, characters 908–1071 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Poultry manure showed superiority over other amendments in improving soil and agronomic properties.

Treatment
Poultry manuree3
Outcome
soil and agronomic propertiese3
Direction
superioritye3
Comparator
other amendmentse3

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The greenhouse and field studies were carried out to assess the effect of different rates of poultry manure (PM), pig slurry (PS) and the recommended NPK fertilizer on some soil physico-chemical properties and okra yield of coarse-textured Ultisols in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 12–292 · show in text ↑
e3

“Poultry manure showed its superiority over other amendments in improving soil and agronomic properties”

✓ located verbatim in the source · abstract, characters 1073–1175 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Twenty t/ha of poultry manure and 40 t/ha of pig slurry are recommended for sustainable soil and optimum okra productivity in Nsukka.

Treatment
20 t ha-1 of PM and 40 t ha-1 of PSe4
Outcome
sustainable soil and optimum productivity of okrae4
Setting
Nsukka, southeastern Nigeriae4

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e4

“The study recommended 20 t ha-1 of PM and 40 t ha-1 of PS for sustainable soil and optimum productivity of okra in Nsukka, southeastern Nigeria”

✓ located verbatim in the source · abstract, characters 1177–1320 · show in text ↑

fertilization · soil: physics · Abelmoschus esculentus (okra)Positive and negative results

9 papers: 7 positive, 2 negative or no effect

6 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

5 papers more in this group

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fertilization · soil: chemistry · Abelmoschus esculentus (okra)Positive and negative results

20 papers: 17 positive, 3 negative or no effect

16 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. negative
  3. no effect

16 papers more in this group

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fertilization · growth · Abelmoschus esculentus (okra)Positive and negative results

207 papers: 190 positive, 17 negative or no effect

189 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

203 papers more in this group

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fertilization · yield · Abelmoschus esculentus (okra)Positive and negative results

373 papers: 355 positive, 18 negative or no effect

354 papers in the same direction as this paper · 14 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

369 papers more in this group

See all 373 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.