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Journal Article 2016

Autor: Kamara, A. Tofa, A.I. Kyei-Boahen, S. Solomon, R. Ajeigbe, Hakeem A. Kamai, N.

Grain yields of cowpea [Vigna unguiculata (L.) Walp.] in the Nigerian savannas are low even with the cultivation of improved varieties. The recommended spacing for cowpea is 75 × 20 cm with two seeds planted per stand. This corresponds to plant population of 133333 plants ha−1, which may not be s...

Enlace original: https://cgspace.cgiar.org/handle/10568/77611

Investigación en Agricultura
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Kamara, A. ,  Tofa, A.I. ,  Kyei-Boahen, S. ,  Solomon, R. ,  Ajeigbe, Hakeem A. ,  Kamai, N. ,  [Effects of plant density on the performance of cowpea in Nigerian Savannas] ,  Effects of plant density on the performance of cowpea in Nigerian Savannas
Journal Article 2017

Autor: Kamara, A.Y. Tofa, A.I. Ademulegun, T. Solomon, R. Shehu, H. Kamai, N. Omoigui, L.O.

Field studies were conducted during the 2014 and 2015 wet seasons at Zaria in the northern Guinea savanna and at Iburu in the southern Guinea savanna of Nigeria to determine the productivity of maize– soybean intercropping system. There were four treatment combinations in the experiment: sole mai...

Enlace original: https://cgspace.cgiar.org/handle/10568/90406

Investigación en Agricultura
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Kamara, A.Y. ,  Tofa, A.I. ,  Ademulegun, T. ,  Solomon, R. ,  Shehu, H. ,  Kamai, N. ,  Omoigui, L.O. ,  [Maize-soybean intercropping for sustainable intensification of cereal-legume cropping systems in northern Nigeria] ,  Maize-soybean intercropping for sustainable intensification of cereal-legume cropping systems in northern Nigeria
Journal Article 2019-04-01

Autor: Abubakar, A.W. Manga, A.A. Kamara, A. Tofa, A.I.

Abstract A field experiment was conducted during 2014 and 2016 rainy season at Tudun Wada, Kano and Shika, Zaria in the Northern Guinea Savanna of Nigeria in order to study the physiological responses of maize hybrids under low nitrogen. The experiment consisted of two nitrogen levels 0 and 120 N...

Enlace original: https://cgspace.cgiar.org/handle/10568/103730

Investigación en Agricultura
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Abubakar, A.W. ,  Manga, A.A. ,  Kamara, A. ,  Tofa, A.I. ,  [Physiological evaluations of maize hybrids under low nitrogen] ,  Physiological evaluations of maize hybrids under low nitrogen
Journal Article 2017

Autor: Kamara, A.Y. Ewansiha, S.U. Ajeigbe, Hakeem A. Omoigui, L.O. Tofa, A.I. Karim, K.Y.

The goal of this research was to evaluate diverse cowpea genotypes developed over the past 4 decades in the Nigerian Sudan Savannas for their agronomic performance and to identify groups of cultivars with similar quantitative characters. Characterization would facilitate the efficient synthesis o...

Enlace original: https://cgspace.cgiar.org/handle/10568/83014

Investigación en Agricultura
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Kamara, A.Y. ,  Ewansiha, S.U. ,  Ajeigbe, Hakeem A. ,  Omoigui, L.O. ,  Tofa, A.I. ,  Karim, K.Y. ,  [Agronomic evaluation of cowpea cultivars developed for the West African Savannas] ,  Agronomic evaluation of cowpea cultivars developed for the West African Savannas
Journal Article 2014

Autor: Kamara, A. Ewansiha, S.U. Boahen, S. Tofa, A.I.

populations were the main plots, whereas varieties were subplots. The proportion of intercepted photosynthetically active radiation (IPAR) and leaf area index (LAI) increased with increasing plant population at both locations, indicating that high leaf area indices and high degree of canopy closu...

Enlace original: https://cgspace.cgiar.org/handle/10568/75904

Investigación en Agricultura
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Kamara, A. ,  Ewansiha, S.U. ,  Boahen, S. ,  Tofa, A.I. ,  [Agronomic Response of Soybean Varieties to Plant Population in the Guinea Savannas of Nigeria] ,  Agronomic Response of Soybean Varieties to Plant Population in the Guinea Savannas of Nigeria
Journal Article 2019-01-22

Autor: Kamara, A. Ewansiha, S.U. Tofa, A.I.

Performance under sub-optimal nitrogen (N) conditions, of early maturing maize cultivars bred for tolerance to drought and Striga parasitism in the Nigerian savanna is not known. This study evaluated the tolerance of selected early maturing drought and Striga-tolerant maize cultivars to low N con...

Enlace original: https://cgspace.cgiar.org/handle/10568/99211

Investigación en Agricultura
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Kamara, A. ,  Ewansiha, S.U. ,  Tofa, A.I. ,  [Yield, N uptake and N utilization of early maturing, drought and striga-tolerant maize varieties under low N conditions] ,  Yield, N uptake and N utilization of early maturing, drought and striga-tolerant maize varieties under low N conditions

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