ISSN 2375-088X
Research Article
African Journal of Soil Science Vol. 2 (2), pp. 058-062, August, 2014. © International Scholars Journals
Full Length Research Paper
Assessment of mung bean (Vigna radiata L.) as green manure in Aegean conditions in terms of soil nutriton under dıfferent sowıng dates
Kurt Balta and Tamer K. Akande
Department of Plant and Crop Science, Faculty of Agriculture, Ege University, Bornova, izmir, Turkey. Email: [email protected]
Accepted 30 July, 2014
Abstract
The experiment was conducted in Ege University, Faculty of Agriculture, Menemen Research, Application and Production Center during the years 2003 and 2004 to evaluate mung bean (variety ML-613) as a green manure under Randomized Complete Block Design considering three sowing times as three treatments in three replications. In this study, it was observed that the legume has a high biomass (2915 to 4405 kg/da) and grain yield (180 to 240 kg/da) in conditions of Aegean area. A short vegetation duration (60 to 75 days) was also recorded with high values of organic matter (70%), narrow C:N ratio (10) along with higher content of micro and macro elements. In this perspective, it was understood that mung bean is a convenient legume crop as green manure in Aegean conditions during summer.
Key words: Mung bean, green manure, plant biomass, nutrients.
e , Kurt Balta, Tamer K. Ak
Page: 58 - 62
https://doi.org/10.46882/AJSS/1010Research Article
African Journal of Soil Science Vol. 2 (1), pp. 045-051, July, 2014. © International Scholars Journals
Full Length Research Paper
Effects of land use on soil nutrient concentration and fertility using Geospatial technology
F.O. Adekayode
1Department of Crop, Soil and Pest Management, Federal University of Technology, Akure, Nigeria.
E-mail: [email protected]
Accepted May, 2014
Abstract
The effects of land use on soil nutrient concentration and fertility were investigated in a research conducted in Akure (Latitude 7018’12”N and Longitude 508’4”E) in 2013 using the GIS interpolation technique. The land use types identified on the GeoEye-1 satellite image were maize, cassava, oil palm and forested areas consisting of bush regrowth and uncleared forest. The feature extraction technique in Arc GIS was used to group and delineate the land use types while soil samples at seven locations were taken from each land use and analysed for nitrogen, phosphorus, potassium, calcium, magnesium and organic matter. The spatial nutrient concentration across the land use types was generated using the GIS kriging technique of 3D Analyst/Raster Interpolation/Kriging Tools while the fertility map was generated using the overlay operations of 3D/Raster Math Tools in ArcMap. The fertility map generated indicated high fertility status in the uncleared forest and oil palm while the greater portion of bush regrowth was of medium fertility and the portion of each of maize and cassava was of low soil fertility.
Key words: Land use, nutrient concentration, soil fertility map, GeoEye-1 Imagery, kriging technique.
F.O. Adekayode
Page: 45 - 51
https://doi.org/10.46882/AJSS/1008Research Article
African Journal of Soil Science Vol. 1 (1), pp. 009-015, October, 2013. © International Scholars Journa
Full Length Research Paper
Integrating indigenous knowledge and soil science approaches to detailed soil survey in Kaduna State, Nigeria
Raji, B. A.1*, Malgwi, W. B.1, Berding, F. R.2 and Chude, V. O.2
1Department of Soil Science, Ahmadu Bello University, Zaria, Nigeria.
2National Special Program for Food Security (NSPFS), FAO Nigeria Office, Abuja, Nigeria.
*Corresponding author. E-mail: [email protected].
Accepted 17 August, 2013
Abstract
Farmers’ knowledge about their soils and their management constitutes a complex wisdom system, which if integrated with modern soil science, could provide the necessary synergy for sustainable agricultural development. A field work was undertaken in parts of Kaduna State to ascertain the indigenous knowledge of farmers and compared it with scientific classification of the same soils. The farmers used non-taxonomic classification with two levels of classification, topography or position in the landscape and inherent fertility as the first classifiers, while soil colour, surface characteristics and texture were the second. Overall, the indigenous classification used morphological and physical properties of the surface horizon as their main diagnostic attributes. In the Jagindi site, farmers were able to classify the soil units into Tudu Jar-Kasa and Tudu Yunbu for the soil units JD1 and JD2 respectively while the seasonally flooded unit; JD3 was classified as Fadama, an indigenous soil name that has been found acceptable in scientific literature. Correlation would be easier with the World Reference Base (WRB) system, which also place emphasis on morphological properties observable in the field as shown by the chromic subgroup in WRB and Jar (red) in the indigenous classification of soil unit JD1. The indigenous classification scheme in the study areas, though simple, was adequate in most cases in grouping soils into classes that could be managed using similar management practices, re-emphasizing the use-oriented nature of indigenous classification. For sustainable development in the study areas and to improve communication between the scientists, the extension agents and the farmers, it is suggested that local soil name be integrated into the soil map legend.
Key words: Conventional soil survey, Fadama, indigenous knowledge, Nigeria.
V. O., Berding , F. R. and Chude, Raji , B. A.*, Malgwi , W. B.
Page: 9 - 15
https://doi.org/10.46882/AJSS/1004Research Article
African Journal of Soil Science Vol. 1 (3), pp. 033-036, December, 2013. © International Scholars Journals
Full Length Research Paper
Effects of cow-dung and rock phosphate on heavy metal content in soils and plants
O. O. Awotoye1*, D. J. Oyedele2 and B. C. Anwadike1
1Institute of Ecology and Environmental Studies, Obafemi Awolowo University, Ile –Ife, Nigeria.
2Department of Soil Science, Obafemi Awolowo University, Ile-Ife, Nigeria.
*Corresponding author. E-mail: [email protected]
Accepted 9 November, 2013
Abstract
Field trial was conducted with the view to determining the ideal rock phosphate (RP) and the level of cow dung fertilizer combination with respect to heavy metal contamination of soil and crops. Soils amended with Ogun rock phosphate (ORP) were subjected to 1-4 tha-1 of cow dung on which maize (Zea mays (L) _ and okra (Abelmuscus esculentum) were planted. The amended soils were found to be enriched with heavy metals (Pb, Zn, Cu and Cd) more than the unamended soil but were still within the tolerable level with the exception of Cd which had a high value of 5.30 µg g-1 above the critical value of 3µg g-1. The application of RP in combination with various levels of cow dung elevated the Pb, Zn and Cu content in the tissue of maize relative to the control. The Zn and Pb content of okra were not affected except for Cu and As in soil amended with RP and various levels of cow dung relative to the control. Transfer factor (TF) was higher in the treatment with RP supplemented with 2 t ha-1 of cow dung particularly for Pb and Zn for both crops relative to other treatments. Except for Cu and Zn, increasing the level of cow dung while RP did not increase the TF value of the heavy metals to the crops.
Key words: Rock phosphate, cow dung manure, heavy metal contamination, tolerable level, transfer factor.
O. O. Awotoye*, D. J. Oyedele and B. C. Anwadike
Page: 33 - 36
https://doi.org/10.46882/AJSS/1005Research Article
African Journal of Soil Science Vol. 1 (3), pp. 037-044, December, 2013. © International Scholars Journals
Full Length Research Paper
The importance of Turkish hazelnut trace and heavy metal contents for human nutrition
Faruk Özkutlu1 Yusuf Ziya Doğru2 Nedim Özenç3 Gizem Yazici1 Metin Turan5* and Fatih Akçay6
1Universiy of Ordu, Faculty of Agriculture, Department of Soil Science, Ordu-Turkey.
2Universiy of Atatürk, Narman Vocational School, Erzurum-Turkey.
3Giresun Hazelnut Research Institute, Giresun-Turkey.
4University of Sabancı, Faculty of Engineering and Natural Science, Istanbul-Turkey
5Universiy of Atatürk Faculty of Agriculture, Department of Soil Science, Erzurum-Turkey.
6Universiy of Atatürk, Faculty of Medicine, Department of Biochemistry, Erzurum-Turkey.
*Corresponding author. E-mail: [email protected].
Accepted 23 December, 2013
Abstract
The trace and heavy metal concentration of eighteen different varieties of hazelnut were studied for variety and geographical region discussed for human nutrition and health. These results showed that average Al, As, B, Cr, Co, Cd, Cu, Fe, Mn, Mo, Ni, Se, Pb, and Zn concentrations in the varieties varied in the following ranges 0.91-9.74, 0.02-0.27, 14.60-29.90, 0.02-0.04, 0.07-0.61, 0.01-0.03, 13.76-21.71, 35.12-49.40, 41.11-116.81, 0.09-0.31, 0.81-2.97, 0.02-0.05, 0.03-0.07 and 23.52-35.52 mg kg-1. According to the daily microelement requirements, 100 g Uzunmusa cv, Kargalak cv., Cakildak cv. hazelnut provided about 50% for Fe and Cd, 41% for Mo, 32% for Zn, 21% for Se, 21% for Cr, 5% for B, 1% Ni of the recommended daily amount. On the other hand 100 g hazelnut can supply easily, a daily consumption of Mn, Cu, As, Pb, Al and Co levels of human beings.
Key words: Human nutrition, heavy metal, recommended daily amount, trace element.
* and Fatih Akçay, Metin Turan, Yusuf Ziya Doğru, Gizem Yazici, Nedim Özenç, Faruk Özkutlu
Page: 37 - 44
https://doi.org/10.46882/AJSS/1003Research Article
African Journal of Soil Science Vol. 1 (2), pp. 028-032, November, 2013. © International Scholars Journals
Full Length Research Paper
Spatial variation in heavy metal concentration in an arable soil along a major highway in Ikorodu-Lagos, Nigeria
V. T. Sanyaolu1, A. A. A. Sanyaolu2* and E. Fadele1
1Department of Science Laboratory Technology, Environmental Biology Unit, School of Technology,
Lagos State Polytechnic, Ikorodu, Lagos.
2Department of Biological Sciences, Environmental Biology Section, School of Science, Yaba College of Technology, PMB 2011 Yaba, Lagos.
*Corresponding author. E-mail: [email protected]. Tel: +2348-05309-1616.
Accepted May 28, 2013
Abstract
Investigations were carried out on the effect of heavy vehicular traffic on the deposition of some heavy metals, namely; Lead (Pb), Cadmium (Cd) and Zinc (Zn) on an arable soil (under vegetable cultivation) very close to a major highway using spectrophotometric technique (AAS - Perkin Elmer Analyst 400). Also investigated was the correlation between heavy metal residue in the soil and distance (10, 20 and 30 m) from this major highway as well as, the effect of a barrier on the level of heavy metal fall-out in this soil. Results from this study shows a significantly higher concentration for all the heavy metals on the study site at the different distances considered when compared to those of the control. Pb for instance ranged from between 0.073 to 0.354 mg/kg at the experimental site and 0.053 to 0.063 mg/kg at the control site. Further still, it was observed that in all cases, concentration of heavy metals in the soil has an inverse variation with distance from the road. Also, the construction of a barrier (a fence of about 2.5 m high) at a distance of about 20 m from the highway was suspected to have contributed to a reduction in the level of all the heavy metals, particularly Zn, where the reduction was found to be significantly lower at the distances (20 and 30 m) from where this barrier was present.
Key words: Heavy metals, arable soil, toxic pollutants, vehicular emissions.
V. T. Sanyaolu, A. A. A. Sanyaolu* and E. Fadele
Page: 28 - 32
https://doi.org/10.46882/AJSS/1006