Agricultural Science 2022 Jamb Examination

A tractor is a powerful and versatile motor vehicle used on farms to pull or lift implements, making tasks such as ploughing, harrowing, and planting more efficient. Bulldozers are mainly for earth-moving, shellers are for removing husks from grains, and incubators are for hatching eggs.

Ridger planters are used primarily for creating ridges for crops like cassava or potatoes and are not classified as standard planters. Broadcast, row crop, and grain drill planters are common types used for sowing seeds.

A plough is used for primary tillage and soil preparation, not for harvesting crops. Mowers, forage harvesters, and combine harvesters are all designed to harvest crops efficiently.

Sprayers are used to apply chemicals such as herbicides, pesticides, and disinfectants to crops or farm areas. They are not used for planting seeds. The other options correctly describe sprayer functions.

An incubator is not a farm implement and cannot be coupled to a tractor. Harrows, ridgers, and ploughs are all common tractor-coupled implements used in various farming operations.

Agricultural extension is the educational process that helps farmers adopt better practices, improve productivity, and gain knowledge on modern techniques. Agricultural intension is a misnomer, agricultural education is broader, and agricultural technology refers to tools and machinery.

Agricultural extension aims to educate farmers, improve rural living standards, and provide market information. Abandoning rural development contradicts the goals of extension and is not an objective.

Agricultural extension requires building trust and confidence with farmers. Reducing their confidence would be counterproductive. Gaining confidence, flexibility, and continuous evaluation are key principles.

Mass media methods, such as radio, TV, and newspapers, reach a large audience effectively, creating awareness and interest in new farming techniques. Individual and group methods are limited in scope, and 'Many method' is not a recognised approach.

Red revolution programme is not a recognised agricultural extension initiative. Agro-service centres, Operation Feed the Nation, and the Green Revolution Programme are established examples of extension activities aimed at improving agricultural productivity.