Thorough working knowledge of agricultural machinery and implements: tractors and power tillers, mould board and disc ploughs, cultivators, disc harrows, rotavators, laser levellers, ridgers and bed formers, seed drills, planters and transplanters, power weeders and inter-cultivators, fertiliser spreaders, knapsack, boom and air-assisted sprayers, combine harvesters, diggers, threshers, balers and post-harvest cleaning and grading equipment.