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Suitability Evaluation of Selected Wetland Soils in Nigeria for Rainfed Rice Cultivation

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Relation http://oar.icrisat.org/3993/
http://www.tropicultura.org/eng/content/v20n3.html
 
Title Suitability Evaluation of Selected Wetland Soils in Nigeria
for Rainfed Rice Cultivation
 
Creator Olaleye, A O
Ogunkunle, A O
Sahrawat, K L
Osiname, O A
Ayanlaja, S A
 
Subject Soil Science
 
Description Thirty-eight wetland soils in four agro-ecological
zones were evaluated for their suitability for rice
(Oryza sativa L.) cultivation. The results indicated that
climatic characteristics are near optimum. Currently,
by non-parametric method, most (≥ 97%) of the
pedons were found to be marginally suitable (S3).
With the parametric method about 3% were highly
suitable (S1), 74% marginally suitable (S3) and 23%
not suitable (NS). Potentially by non-parametric
method, 18% were of high (S1) and moderate (S2)
suitabilities respectively, 58% were marginally suitable
(S3) and 6% not suitable (NS). With parametric
method, 24% were highly suitable (S1), 45 and 31%
were of moderate (S2) and marginal (S3) suitabilities.
The major limitations to rice cultivation on these soils
are low CEC, organic carbon, exchangeable cations
and available P, which may predispose rice plants to
excessive Fe2+ uptake visually expressed as «bronzing
» or «yellowing» symptoms. In this and similar
environments in the region, good soil management is
required before substantial improvement in rice production
can be achieved.
 
Publisher Bib. des Sciences agronomiques - ULg
 
Date 2002
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/3993/1/TROPICULTURA_2002_20_3__97-103.pdf
Olaleye, A O and Ogunkunle, A O and Sahrawat, K L and Osiname, O A and Ayanlaja, S A (2002) Suitability Evaluation of Selected Wetland Soils in Nigeria for Rainfed Rice Cultivation. Tropicultura, 20 (3). pp. 97-103. ISSN 0771-3312