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Deficiencies of sulphur (S), copper (Cu) and zinc (Zn) are becoming prevalent under intensifying agricultural systems in north-eastern Nigeria. They are manifest in the partial or lack of response by crops to NPK fertilizers leading to a reduction in crop quality and yields. Data were collected o...


Kwari, J.D.Kamara, A.Y.Ekeleme, F.Omoigui, L.O.[Relation of yields of soybean and maize to sulphur, zinc and copper status of soils under intensifying cropping systems in the tropical savannas of northeast Nigeria]Relation of yields of soybean and maize to sulphur, zinc and copper status of soils under intensifying cropping systems in the tropical savannas of northeast Nigeria

This study evaluated the response of four rain-fed lowland New Rice for Africa (NERICA) varieties (NERICA-L-12, NERICA-L-41, NERICA-L-42 and NERICA-L-56) and a popularly grown Oryza sativa (ITA 150) to nitrogen (0, 30, and 100 kg N ha-1). The interactions between nitrogen and variety were not sig...


Kamara, A.Y.Ekeleme, F.Omoigui, L.O.Chikoye, D.[Influence of nitrogen fertilization on yield and yield components of rainfed lowland NERIC rice in the northern Guinea savanna of Nigeria]Influence of nitrogen fertilization on yield and yield components of rainfed lowland NERIC rice in the northern Guinea savanna of Nigeria
Chikoye, D.Ekeleme, F.Hauser, S.Menkir, A.Kamara A.Y.Neuenschwander, P.Ajuonu, O.Ajeigbe, Hakeem A.[Weeds affecting field crops and water bodies in Africa]Weeds affecting field crops and water bodies in Africa

The composition and pattern of weed flora in arable fields are determined by their seedbank structure; but the influence of fallow management practices on weed seedbank structure is presently unknown. The objective of this study was to investigate weed seedbank characteristics and weed population...


Akobundu, I.O.Ekeleme, F.[Weed seedbank characteristics of arable fields under different fallow management systems in the humid tropical zone of southeastern Nigeria]Weed seedbank characteristics of arable fields under different fallow management systems in the humid tropical zone of southeastern Nigeria

A number of improved varieties have been developed by the International Institute of Tropical Agriculture (IITA), combining diverse plant type with resistance or tolerance to several diseases, insect pests, and parasitic weeds and possessing other good agronomic traits. Trials were established wi...


Kamara, A.Y.Ellis-Jones, J.Ekeleme, F.Omoigui, L.O.Amaza, P.Chikoye, D.Dugje, I.Y.[A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria]A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria

Maize farmers and extension agents in dry sudan savanna need information on how planting date and the choice of variety affect grain yield. This study was conducted to test the ability of model to predict maize yields under varying planting dates. Data on two open-pollinated maize cultivars (TSB-...


Jibrin, J. M.Kamara, A.Ekeleme, F.[Simulating planting date and cultivar effects on dryland maize production using CERESmaize model]Simulating planting date and cultivar effects on dryland maize production using CERESmaize model
Dugje, I.Y.Ekeleme, F.Kamara, A.Y.Omoigui, L.O.Tegbaru, A.Teli, I.A.Onyibe, J.E.[Guide to safe and effective use of pesticides for crop production in Borno State, Nigeria]Guide to safe and effective use of pesticides for crop production in Borno State, Nigeria
Dugje, I.Y.Onyibe, J.F.Ekeleme, F.Kamara, A.Y.Tegbaru, A.Omoigui, L.O.Bassi, S.A.[Guide to certified seeds production in Borno State, Nigeria]Guide to certified seeds production in Borno State, Nigeria

Alley cropping with Leucaena leucocephala (Lam.) de Wit, caused a shift in weed flora away from fast-growing annual weeds that are characteristic of frequently cultivated fields to shade-tolerant, less-competitive weeds. Alley cropping caused a greater decline in weed density over lime than was o...


Akobundu, I.Ekeleme, F.Agyakwa, C.W.[Effect of alley farming on weed infestation and floral composition]Effect of alley farming on weed infestation and floral composition

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