Gauteng Smallholder August 2015 | Page 43

From page 41 TILLAGE such machines will have a machines that have a number couple of forward operating of other operating head gears, reverse, adjustable options such as power tines of various configurations brooms are available. for different soils, and the These small cultivators will larger of these will have reach no more than 10-15cm electric starters and even and are best suited to soft or sandy soils. In heavier soils they tend to ride up out of the soil and bounce along the surface. Next up in size are small hand-operated walk-behind cultivators Chinese single-cylinder diesel rotavator with typically powered by trailing seat diesel engines. 4-5HP petrol engines. Usually belt-driven, they have Larger still are the two-wheel Chinese walk-behinds. two shafts of tines and no Powered by single-cylinder wheels, and they are driven forward by the pulling action diesel engines which are kept of the tines as they turn. The in motion by a massive flywheel these can either be number of tines can usually walk-behinds, to can be fitted be changed to suit both the with trailing seats. Traction is by two small cleated wheels and steering is by way of two dog-clutches activated off the handlebars. A feature of many of these machines is that the handlebars can be slewed to either side so that the operator need not walk in the freshly tilled soil. A rotary cultivator is but one Wheelless Viking tiller attachment on these allpurpose Chinese machines, width of narrow beds and the with sickle-bar cutters, rotary type of soil being worked for mowers, small ploughs, water these machines, too, suffer pumps, generators and trailers from the fact that they are being some of the other light in weight and will also implements one can buy. ride up in heavy soils. If you already possess a Nevertheless they are a welcome time-saver when preparing long, straight vegetable beds for spring plantings, and leave behind in their wake a smooth fine tilth to a depth of 10-20cm. Most are light enough to be easily man-handled, although the larger models of this type are fitted with either permaHusqvarna rotavator with tractive nent or removable wheels to wheels tractor, even a small one, and enable them to be tilted and rolled to and from the garden your cultivation area is large, a PTO-operated rotavator beds. might be your answer. The next variation are larger, heavier machines with tractive Machines are available from 1m working width upwards wheels to keep them operating straight and level. Typically Continued on page 43