Long-Term Effects of Exotic Tree Species (&lt;i&gt;Tectona grandis&lt;/i&gt; Linn. F.) on the Status of Extractable Micronutrients in the Southern Guinea Savanna of Nigeria

Samndi, M A; Raji, B. A.; Kparmwang, T.

doi:10.4314/njser.v7i1.28414

Cited by 2 publications

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“…The variation Fe p values might be due to difference in the amount of organic matter generated by vegetations in the different ecological zones of the various studies. The values obtained were within range reported in established forest in Southern Guinea Savanna of Nigeria (Samndi et al, 2006). The soils generally had irregular distribution of Fe p in their profiles and were similar to those reported by Abdourahamane and Yaro (2007).…”

Section: Bajopas Volume 7 Number 2 December 2014supporting

confidence: 88%

“…This confirms that crystallization is inhibited by organic matter in the soils. The inhibitory effect of soil organic matter on Fe crystallization in surface soils was also reported by Blume and Schwertmann (1969), Yaro (2005) and Samndi et al (2006).…”

Section: Bajopas Volume 7 Number 2 December 2014supporting

confidence: 73%

“…Under good drainage and slightly acid or alkaline conditions, iron persists in a relatively immobile trivalent state, with resultant accumulation of hydrous oxides such as haematite, goethite and limonite in soil profiles (Sillanpaa, 1972;Kabata-Pendias and Pendias, 1984). Organic matter with high cation exchange capacity (CEC) are able to adsorb large amount of heavy metals to form metalorganic matter complexes, leading to the less mobility of such elements (Adriano, 2001;Samndi et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Forms of iron in soils on basement complex rocks of Kaduna state in northern guinea Savanna of Nigeria

Maniyunda¹,

Raji²,

Odunze³

et al. 2015

Bayero J. Pure App. Sci.

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The forms of iron extracted by different methods were studied in soils developed on four basement complex rocks within Northern Guinea Savanna of Nigeria namely: migmatite gneisses, older granite, quartzites and mica schists. The study shows that forms of iron generally decreased in the order of total elemental iron (Fe T) determined by XRF > double acid extractable total iron (Fe a) > dithionite extractable iron oxide (Fe d) > oxalate extractable iron oxide (Fe x) > pyrophosphate extractable iron oxide (Fe p) > 0.1M HCl extractable micronutrient available iron (Fe h). Variation in content of total irons (Fe T and Fe a) were not significant in the soils, but content of Fe h , Fe d , Fe x and Fe x/d significantly varied in the soils on the various parent materials. Therefore processes and extent of pedogenesis were considered to influence the variations resulting in recrystallization and increase in content of Fe h and Fe d in these soils. The significant correlation between various forms of Fe (Fe a , Fe d , and Fe x) with active iron ratio further affirmed that as soils on basement complexes increase in their pedogenetic age, Fe content generally increases irrespective of total forms of iron. The strong correlation between Fe T , Fe a and Fe d indicate that these forms of iron were extracted from similar sources.

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Section: Bajopas Volume 7 Number 2 December 2014supporting

confidence: 88%

Section: Bajopas Volume 7 Number 2 December 2014supporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

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Forms of iron in soils on basement complex rocks of Kaduna state in northern guinea Savanna of Nigeria

Maniyunda¹,

Raji²,

Odunze³

et al. 2015

Bayero J. Pure App. Sci.

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“…Serum samples with titres greater than or equal to government [7] while Jemma'a local government area 1/16 (4log ) were considered positive [11]. 2 has a waterfall and the Nimiba forest reserve which Households from where samples were collected covers about 2,282.4 heaters [8]. The state has a bird where asked if they kept water birds (geese or ducks) population of about 1.5 million comprising of both or pigs.…”

Section: Introductionmentioning

confidence: 99%

Avian influenza H5 subtype antibodies in village chickens in four local government areas of Kaduna state, Nigeria

Gugong¹,

Ajogi²,

Juniadu³

et al. 2012

Vet World

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Aim: Biosecurity measures are rarely implemented in traditional farming systems especially in the villages. Given the importance of the village chickens as a source of income for rural families and its public health concern due to the frequent contact that exist between these birds and humans a study was conducted to assess the presence of antibodies to the H5 avian influenza virus subtype in village chickens in some Local Government Areas (LGAs) in Kaduna State. Materials and Methods: A total of 480 sera samples were obtained from apparently healthy local chickens in five LGAs where the avian influenza outbreak has not been reported. The sera were subjected to the Haemagglutination inhibition (HI) test using the H5N2 avian influenza antigen. Results: An overall prevalence of 2.9% with an individual seroprevalence of 10%, 0.8%, 4.1% and 3.3% in Jaba, Jemma'a, Kaura and Zango Kataf local government areas respectively. There was no association between presence of pigs and detection of avian influenza antibodies, p=0.8723, OR 0.9153 (95% CI: 0.3108-2.695), but there was an association between presence of water birds (Gesse and Ducks) and detection of avian influenza antibodies, p= 0.0203, OR 3.488 (95% CI: 1.146-10.61). Conclusions: This result highlights the important role apparently healthy village chickens may play in virus perpetuation (reservoir) and in the spread of avian influenza to other animals and humans. An enhanced and sustained virological surveillance for the virus in village chickens was recommended.

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Long-Term Effects of Exotic Tree Species (<i>Tectona grandis</i> Linn. F.) on the Status of Extractable Micronutrients in the Southern Guinea Savanna of Nigeria

Cited by 2 publications

References 0 publications

Forms of iron in soils on basement complex rocks of Kaduna state in northern guinea Savanna of Nigeria

Forms of iron in soils on basement complex rocks of Kaduna state in northern guinea Savanna of Nigeria

Avian influenza H5 subtype antibodies in village chickens in four local government areas of Kaduna state, Nigeria

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