Abstract
ABSTRACT Rock phosphate (RP) is being considered as a phosphorus (P) source for reversing soil fertility depletion in Sub-Saharan Africa. We conducted research to evaluate organic or inorganic materials to be combined with RP to enhance P availability. Field trials were conducted at the Institute of Agricultural Research and Training, Moor Plantation, Ibadan in 2001 and 2002 to evaluate the comparative effects of urea (U) and poultry manure (PM) on solubilization of rock phosphate and on the growth and yield of okra (Abelmoschus esculentus (L.) Moench). Okra growth and yield were significantly enhanced by the addition of the treatments. The combined use of RP with either PM and to a lesser degree U, significantly improved the growth and yield of okra compared to when the materials were used individually. Application of RP + U and RP + PM increased available soil P of between 112 and 115% and 144 and 153%, respectively, in both years.
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Claims 3
Claim · model-written summary
Combined rock phosphate with poultry manure, or to a lesser degree urea, significantly improved okra growth and yield compared with the materials used individually.
- Taxon
- okra
.jpg?width=60)
Abelmoschus esculentuse1 - Treatment
- combined use of RP with either PM and to a lesser degree Ue1
- Outcome
- growth and yielde1
- Direction
- improvede1
- Comparator
- when the materials were used individuallye1
- Setting
- Ibadane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“The combined use of RP with either PM and to a lesser degree U, significantly improved the growth and yield of okra compared to when the materials were used individually”
e0“Field trials were conducted at the Institute of Agricultural Research and Training, Moor Plantation, Ibadan in 2001 and 2002”
Claim · model-written summary
RP + U increased available soil P in okra fields by 112 and 115% in both years.
- Taxon
- OkraAbelmoschus esculentust0
- Treatment
- RP + Ue2
- Outcome
- available soil Pe2
- Direction
- increasede2
- Value
- 112 and 115%e2
- Qualifier
- in both yearse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Application of RP + U and RP + PM increased available soil P of between 112 and 115% and 144 and 153%, respectively, in both years”
t0“Development and Yield of Okra”
Claim · model-written summary
RP + PM increased available soil P in okra fields by 144 and 153% in both years.
- Taxon
- OkraAbelmoschus esculentust0
- Treatment
- RP + PMe2
- Outcome
- available soil Pe2
- Direction
- increasede2
- Value
- 144 and 153%e2
- Qualifier
- in both yearse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Application of RP + U and RP + PM increased available soil P of between 112 and 115% and 144 and 153%, respectively, in both years”
t0“Development and Yield of Okra”
The same questions in other papers
phosphorus · yield · Abelmoschus esculentus (okra)Results differ
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- positive
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See all 41 papers →fertilization · yield · Abelmoschus esculentus (okra)Positive and negative results
354 papers in the same direction as this paper · 14 in the opposite direction · 4 reporting no difference from an alternative
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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.