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Journal Article 2009

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

Autor: Kwari, J.D. Kamara, A.Y. Ekeleme, F. Omoigui, L.O.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/90372

Investigación en Agricultura

Copper

micronutrients

sulphur

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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

Journal Article 2011-07

Influence of nitrogen fertilization on yield and yield components of rainfed lowland NERIC rice in the northern Guinea savanna of Nigeria

Autor: Kamara, A.Y. Ekeleme, F. Omoigui, L.O. Chikoye, D.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/88160

Investigación en Agricultura

RICE

PRODUCTION

SOIL FERTILITY

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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

Journal Article 2002-04

Weed seedbank characteristics of arable fields under different fallow management systems in the humid tropical zone of southeastern Nigeria

Autor: Akobundu, I.O. Ekeleme, F.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/80047

Investigación en Agricultura

BUSH FALLOW

HUMID TROPICS

SEED BANK

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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

Journal Article 2010-06

A participatory evaluation of improved cowpea cultivars in the Guinea and Sudan savanna zones of north east Nigeria

Autor: Kamara, A.Y. Ellis-Jones, J. Ekeleme, F. Omoigui, L.O. Amaza, P. Chikoye, D. Dugje, I.Y.

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/88966

Investigación en Agricultura

FARMERS

CULTIVARS

COWPEA VARIETIES

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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

Journal Article 2012-10

Simulating planting date and cultivar effects on dryland maize production using CERESmaize model

Autor: Jibrin, J. M. Kamara, A. Ekeleme, F.

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-...

Enlace original: https://cgspace.cgiar.org/handle/10568/79817

Investigación en Agricultura

PLANTING DATE

SUDAN SAVANNA

DRYLAND

Listar archivos Citar Enlace permanente

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

Journal Article 2003

Characterization of legume cover crops for weed suppression in the moist savanna of Nigeria

Autor: Ekeleme, F. Akobundu, I.O. Fadayomi, R.O. Chikoye, D. Abayomi, Y.A.

Multilocational characterization of selected herbaceous and shrub legumes was carried out over a 3-yr period at lowland and midlatitude sites in the moist savanna agroecological zone in Nigeria where a south-north gradient exists for rainfall, length of growing season, and insolation. One study s...

Enlace original: https://cgspace.cgiar.org/handle/10568/98090

Investigación en Agricultura

LEGUMES

COVER CROPS

WEEDS

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Ekeleme, F. , Akobundu, I.O. , Fadayomi, R.O. , Chikoye, D. , Abayomi, Y.A. , [Characterization of legume cover crops for weed suppression in the moist savanna of Nigeria] , Characterization of legume cover crops for weed suppression in the moist savanna of Nigeria

Journal Article 1999

Survey of distribution and farmer perceptions of speargrass Imperata cylindrica in cassava based cropping systems in West Africa

Autor: Chikoye, D. Ekeleme, F. Ambe, J.T.

Several insects, pathogens and weeds are serious constraints upon cassava production in West Africa. The International Institute of Tropical Agriculture and agricultural research institutions from Benin, Cameroon, Ghana, and Nigeria initiated the Ecologically Sustainable Cassava Plant Protection ...

Enlace original: https://cgspace.cgiar.org/handle/10568/98052

Investigación en Agricultura

CASSAVA

WEEDS

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Chikoye, D. , Ekeleme, F. , Ambe, J.T. , [Survey of distribution and farmer perceptions of speargrass Imperata cylindrica in cassava based cropping systems in West Africa] , Survey of distribution and farmer perceptions of speargrass Imperata cylindrica in cassava based cropping systems in West Africa

Journal Article 1999

Influence of fallow management systems and frequency of cropping on weed growth and crop yield

Autor: Akobundu, I.O. Ekeleme, F. Chikoye, D.

The influence of weeds on maize intercropped with cassava was evaluated in three fallow management systems and four cropping frequencies from 1989 to 1996 in lbadan, Nigeria, West Africa. Fallow management systems consisted of natural bush, Leucaena leucocephala hedgerows and Puerctria phaseoloid...

Enlace original: https://cgspace.cgiar.org/handle/10568/98032

Investigación en Agricultura

CASSAVA

MAIZE

WEEDS

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Akobundu, I.O. , Ekeleme, F. , Chikoye, D. , [Influence of fallow management systems and frequency of cropping on weed growth and crop yield] , Influence of fallow management systems and frequency of cropping on weed growth and crop yield

Journal Article 2011-08

Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna

Autor: Kamara, A.Y. Ekeleme, F. Omoigui, L.O. Ajeigbe, Hakeem A.

Soybean (Glycine max) is a major cash crop in the savannas of Nigeria although productivity is typically constrained by poor soil fertility. The objective of this research was to determine the interactive effect of N and P on soybean productivity in the northern Guinea and Sudan savannas of north...

Enlace original: https://cgspace.cgiar.org/handle/10568/88153

Investigación en Agricultura

SOYBEANS

GRAIN LEGUMES

CASH CROPS

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Kamara, A.Y. , Ekeleme, F. , Omoigui, L.O. , Ajeigbe, Hakeem A. , [Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna] , Phosphorus and nitrogen fertilization of soybean in the Nigerian savanna

Journal Article 2011-07

Effect of sowing date on Striga infestation and yield of sorghum (Sorghum bicolor [L.] Moench) cultivars in the Sudan savanna of northeast Nigeria

Autor: Ekeleme, F. Kamara, A.Y. Omoigui, L.O. Chikoye, D. Dugje, I.Y. Tegbaru, A.

Striga hermonthica is a serious biotic constraint to sorghum production in the dry savannas of subSaharan Africa but the use of improved cultivars and appropriate planting dates may help to control the weed. A two year trial was conducted to evaluate the effect of sowing dates on four sorghum cul...

Enlace original: https://cgspace.cgiar.org/handle/10568/88174

Investigación en Agricultura

SORGHUM

SOWING DATE

STRIGA HERMONTHICA

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Ekeleme, F. , Kamara, A.Y. , Omoigui, L.O. , Chikoye, D. , Dugje, I.Y. , Tegbaru, A. , [Effect of sowing date on Striga infestation and yield of sorghum (Sorghum bicolor [L.] Moench) cultivars in the Sudan savanna of northeast Nigeria] , Effect of sowing date on Striga infestation and yield of sorghum (Sorghum bicolor [L.] Moench) cultivars in the Sudan savanna of northeast Nigeria

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