African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6559

Table of Content: 18 January 2010; 5(2)

January 2010

Long-term land management effects on soil properties and microbial populations in a maize-bean rotation at Kabete, Kenya

The effect of continued application of mineral and organic fertilizers on soil agro-properties and soil microbial populations and activity, was studied in a long-term field experiment at Kabete, in the highlands of Kenya. The area is sub-humid with an average bimodal rainfall of 980 mm and two cropping seasons per year. The main treatments were 3 rates of inorganic N and P fertilizers, farmyard manure...

Author(s): Catherine N. Kibunja, F. B. Mwaura and D. N. Mugendi

January 2010

Comparison of two sanitary control methods of Coelaenomenodera lameensis Berti. and Mariau (Coleoptera, Chrysomelidae: Hispinae), an oil palm (Elaeis guineensis Jacq.) leaf miner in West Africa

Coelaenomenodera lameensis (Coleoptera, Chrysomelidae: Hispinae) is a dangerous pest of oil palm (Elaeis guineensis, Jacquin 1963). Two sanitary control methods (Irho/Cirad method) were compared for the first time on the agro-industrial unit of Toumanguié (Côte d’Ivoire). priou method examines twice more trees and 4 times more palms than the Irho-Cirad’s. Yet the latter...

Author(s): S. C. Nahounou, H. K. Koua, L. R. N. Aboua, G. J. Agnakpa and B. P. Séri-Kouassi

January 2010

Composition, radical scavenging and antifungal activities of essential oils from 3 Helichrysum species growing in Cameroon against Penicillium oxalicum a yam rot fungi

The chemical composition of essential oils from leaves of Helichrysumcameroonense Hutch. and Dalziel, Helichrysum cymosum Sensu C. D. Adam, Helichrysum globosum Sch. Bip. ex A. Rich. and flowers of Helichrysumcameroonense was examined by means of GC and GC-MS. In addition, the radical scavenging and antifungal activities were assayed according to the DPPH (Diphenyl Picryl...

Author(s): Tchoumbougnang François, Sameza Modeste Lambert, Jazet Dongmo Pierre Michel, Nkouaya Mbanjo Edwige Gaby, Fekam Boyom Fabrice, Ngoko Zaché, Amvam Zollo Paul Henri and Menut Chantal

January 2010

The effects of arbuscular mycorrhizal fungi on yield and stem rot caused by Sclerotium rolfsii Sacc. in peanut

The effects of arbuscular mycorrhizae fungi (AMF) against stem rot disease caused by Sclerotium rolfsii Sacc. in peanut were investigated. The mycorrhizal fungi used were Glomus etunicatum, Glomus mosseae, Glomus clarum,Glomus caledonium, Glomus fasciculatum, Gigaspora margarita. In pot experiments, mycorrhizal fungi decreased infected plant ratio between 17.5 -...

Author(s): Hulya Ozgonen, D. Soner Akgul and Ali Erkilic

January 2010

Desired-gain selection indices for improving performance of two Tanzania local chicken ecotypes under intensive management

A study was carried out to evaluate various desired-gain selection indices (Yamada index) in improving performance of two chicken ecotypes of Tanzania viz. Kuchi and Tanzania Medium (Medium). The indices for Kuchi ecotype were geared at improving body weight at 16 (Bwt16) weeks of age while those for Medium ecotype were geared at improving egg production and related traits. These traits included age at first egg (AFE),...

Author(s): J. Lwelamira and G. C. Kifaro

January 2010

Analysis of effective factors on information sources at Turkish Oregano farms

Oregano (Origanum spp.), culinary herb, is getting more popular because of its health benefits and extensive usage area. Besides Mexico, Greece, Israel, Albania and Morocco, Turkey is also one of the main countries involved in production and export of oregano. Generally oregano is widely grown in Aegean Region of Turkey. This research was carried out to determine the effective factors based on production, structure of...

Author(s): Ozdal Koksal, Erdogan Gunes, O. Orkan Ozer and Mustafa Ozden

January 2010

Agronomic and socio-economic constraints to high yield of upland rice in Tanzania

A field survey was conducted in March 2009 in upland rice growing agro-ecosystem of four districts in Tanzania namely Ulanga, Kyela, Morogoro and Korogwe to investigate the agronomic and socio-economic factors which influence rice productivity and suitability of these areas for NERICA cultivation so as to increase rice productivity. Questionnaire was used to gather primary information from ten farmers from each...

Author(s): J. J. Mghase, H. Shiwachi, K. Nakasone and H. Takahashi

January 2010

Fungicide and insecticide properties of cardboard panels made from used beverage carton with veneer overlay

This study evaluated fungicide and insecticide properties of the cardboard substrate panels overlaid with beech veneer. The experimental cardboards from recycled food and beverage carton containers having approximately 75% paperboard, 20% low density polyethylene (LDPE), and 5% aluminum foil were overlaid using four types of adhesives; polyurethane (PU), phenol–formaldehyde(PF), urea–formaldehyde(UF) and...

Author(s): Selim Sen, Nadir Ayrilmis and Zeki Candan

January 2010

The effect of Viscum album L. on annual diameter increment of Pinus nigra Arn.

In this study, the influence of infestation by mistletoe (Viscum album L. subsp.austriacum (Wiesb.) on the annual diameter increment of Anatolian black pine (Pinus nigra Arn. subsp. pallasiana (Lamb.) Holmboe) in Goksun district (Kahramanmaras province, Turkey), was investigated. Differences among annual diameter increment measured in nine growing years between 1992 and 2000 were...

Author(s): Mehmet Kanat, M. Hakkı Alma and Fatih Sivrikaya