Cowpea Yield as Affected By Level and Time of Mineral Phosphorus Fertilizer Application in the Guinea Savanna Agro-Ecological Zone of Ghana

Williams. K. Atakora

Cowpea Yield as Affected By Level and Time of Mineral Phosphorus Fertilizer Application in the Guinea Savanna Agro-Ecological Zone of Ghana

Williams Kwame Atakora. * §

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§ CSIR-Savanna Agricultural Research Institute

Cowpea Yield as Affected By Level and Time of Mineral Phosphorus Fertilizer Application in the Guinea Savanna Agro-Ecological Zone of Ghana

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Abstract

Phosphorus, although not required in large quantities, is very critical to cowpea production because of its multiple effects on nutrition; shoot development and its influence on nodulation. Phosphorus application stimulates plant root growth, early flowering, enhances fruiting, initiate nodule formation as well as increase in yield of cowpea. In spite of this immense importance of P in soils, its availability to cowpea growth and development is influenced by several factors, which include level and time of application. Knowledge in level of P and time of application to facilitate timely availability of the P fertilizer to improve cowpea yield is critical in order to avertthe continues reduction of cowpea yield by farmers. As a result a 3×4 factorial experiment arranged in split-plot design was conducted at the University for Development Studies experimental site, Nyankpala near Tamale in the northern region of Ghana campus to determine the appropriate P fertilizer levels and timing of application. Three levels of P fertilizer; 24, 48 and 60 kg ha -1 P was applied at 30, 15 days before plating. However, a third application was implemented at sowing.

References

7 Cites in Article

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Not applicable for this article.

How to Cite This Article

Williams. K. Atakora. 2014. "Cowpea Yield as Affected By Level and Time of Mineral Phosphorus Fertilizer Application in the Guinea Savanna Agro-Ecological Zone of Ghana". Global Journal of Science Frontier Research - D: Agriculture & Veterinary GJSFR-D Volume 14 (GJSFR Volume 14 Issue D8).

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GJSFR Volume 14 Issue D8

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Keywords

nodule number nodule weights phosphorus time of application

Classification

GJSFR-D Classification FOR Code: 070301

Submission ReceivedSeptember 9, 2014
Peer Review Double Blind
Handling Editor
Accepted October 5, 2014
Published November 8, 2014

Version of record

v1.2

Issue date

November 8, 2014

Language

English

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Article Matrices

Total Score: 105

Country: Ghana

Subject: Global Journal of Science Frontier Research - D: Agriculture & Veterinary

Authors: Williams. K. Atakora, Emmanuel Oppong, Rufai Mahama, Henry Oppong Tuffour, Sandra AduGyamfi (PhD/Dr. count: 0)

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