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Constraints to Increasing Agricultural Productivity in Nigeria: A Review

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technologies, partly because the NARIs were poorly funded and because of the lengthy<br />

procedures for certify<strong>in</strong>g the release of improved technologies <strong>to</strong> farmers.<br />

Specific constra<strong>in</strong>ts identified <strong>in</strong> the implementation of the T&V system <strong>in</strong> <strong>Nigeria</strong> <strong>in</strong>cluded<br />

bureaucratic procedures, and location of crop and lives<strong>to</strong>ck extension staff <strong>in</strong> different<br />

departments and m<strong>in</strong>istries, which tended <strong>to</strong> promote rivalry and duplication of resources.<br />

Related <strong>to</strong> these issues was the fact that the extension system was implemented with a huge<br />

bias <strong>in</strong> favor of cropp<strong>in</strong>g activities.<br />

In 1992, the NCA approved the adoption of UAES <strong>to</strong> ensure a s<strong>in</strong>gle l<strong>in</strong>e of command and<br />

delivery of unified extension messages <strong>to</strong> farmers. The implementation of this laudable<br />

extension system rema<strong>in</strong>s hampered by poor fund<strong>in</strong>g, as most of the state ADPs s<strong>to</strong>pped<br />

function<strong>in</strong>g after the cessation of World Bank fund<strong>in</strong>g.<br />

The agricultural extension staff is <strong>in</strong>adequate <strong>in</strong> number and quality. In the northeast zone, the<br />

extension worker:farmer ratio is estimated at 1:1,700 (NARP 1995). This ratio is similar <strong>to</strong> the<br />

average ratio found <strong>in</strong> the late 1980s for all of Africa (1:1,800), and <strong>in</strong>dicates a low level of<br />

extension service <strong>to</strong> farmers <strong>in</strong> Africa <strong>in</strong> general and <strong>in</strong> <strong>Nigeria</strong> <strong>in</strong> particular (Swanson, Farner,<br />

and Bahal 1990). Farmers are highly dispersed across large areas of land. This affects the<br />

quality of messages as well as the frequency of visits.<br />

The agricultural extension services <strong>in</strong> <strong>Nigeria</strong> also suffer from <strong>in</strong>adequate facilities and <strong>in</strong>put<br />

supply. The field workers lack transport facilities. They are not equipped with audiovisual aids.<br />

Neither are they supplied with needed technologies that they are supposed <strong>to</strong> promote among<br />

the farmers (NARP 1995).<br />

The agricultural extension staff is poorly paid. Unattractive and untimely paid wages are bound<br />

<strong>to</strong> affect performance. The frequency of visits <strong>to</strong> the fields by the zonal extension agents (ZEAs)<br />

and the block extension agents (BEAs) have been known <strong>to</strong> be seriously affected by poor wage<br />

<strong>in</strong>centives and poor mobility.<br />

Most agricultural research and the emerg<strong>in</strong>g recommendations <strong>in</strong> <strong>Nigeria</strong> have targeted<br />

programs promot<strong>in</strong>g technology adoption by small-scale farmers. There are various reasons<br />

that a study might be designed <strong>to</strong> estimate adoption rates of components or a package of<br />

agricultural technology. An adoption study may be undertaken <strong>to</strong> evaluate the effectiveness of<br />

an agricultural extension system. An adoption study may form part of a larger study <strong>to</strong> diagnose<br />

the constra<strong>in</strong>ts <strong>to</strong> the uptake of some agricultural technologies. Adoption rates may be of<br />

<strong>in</strong>terest as part of an agricultural technology impact study, especially where an economic<br />

surplus approach is the preferred analytical framework.<br />

Attempts have been made <strong>to</strong> assess adoption rates of agricultural technologies as a component<br />

of evaluat<strong>in</strong>g the impact of the T&V system of extension <strong>in</strong> <strong>Nigeria</strong>. But such studies have not<br />

been carried out <strong>in</strong> a systemic manner. Thus, trends <strong>in</strong> the adoption of relevant technologies are<br />

difficult <strong>to</strong> describe. Another design problem <strong>in</strong> most adoption studies <strong>in</strong> <strong>Nigeria</strong> is that they are<br />

usually not crop or lives<strong>to</strong>ck specific. Where they are crop specific, they are not variety specific.<br />

A related problem is that farmers are not tra<strong>in</strong>ed <strong>in</strong> the knowledge of the scientific names of crop<br />

varieties or animal species. Usually farmers are more comfortable with identify<strong>in</strong>g crop varieties,<br />

for example, by us<strong>in</strong>g visible physical attributes of the relevant crops.<br />

In a study by Phillip et al. (2000) of maize varietal adoption <strong>in</strong> three northern <strong>Nigeria</strong>n states,<br />

seed color was an acceptable means of identify<strong>in</strong>g maize varieties rather than us<strong>in</strong>g scientific<br />

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