If thechaff-cutter had the making of us, we should all be straw, I reckon.

Surgeons at Kenyatta National Hospital have successfully reattached a 17-year-old boy's hand severed by achaff-cutter.

Torri'r blaenau meddal, y twf ifanc, cyn iddo galedu, wedyn eu malu yn yr injan falu - ychaff-cutter.

Over the years it has also powered a saw bench, a machine that chopped swedes (rutabaga) for the pigs, achaff-cutter and a corn crusher.

In between there was achaff-cutter for making chaff of the hay, and a slicer for cutting up mangel-wurzels for the cow.

He uses the plant to produce biogas rich in lignocellulose, the main raw material for the production of biofuels and biochemical.The process involves anaerobic fermentation of cacti biomass where the entire plant is crushed using the ordinarychaff-cutter until it becomes a thick paste.

Every farmer needs machines that make work easier, which includechaff-cutters, planters, balers, rippers and tractors.For the small farmer, the major challenge when it comes to acquiring these machines is usually the cost, which many find prohibitive.

Biogas is generally a clean and environmental friendly renewable fuel, which can be used to run engines likechaff-cutters, generation of electricity, for cooking and heating hot water systems and even refrigeration.