History of the horse in Britain drawn by two horses, the "Dutch plough", was used in eastern England; this was followed in 1730 by the lightweight Rotherham plough, an unwheeled, or "swing" plough. It was advertised as reducing ploughing times by a third, or using a third less horsepower for the same ploughing time. The improved seed drill and horse-hoe were invented by Jethro Tull in 1731; but it took more than 100 years for these designs to come into common use. The earliest horse-powered threshing machines, which were installed permanently in barns, were developed towards the end of the 18th century. The use of fast
The Seed Savers' Network peasants who have the skills and knowledge of its utilisation. Seeds with proprietary rights – plant variety rights – are not suitable for home seed saving as it is illegal to propagate from patented seed. Since its establishment in 1986, The Seed Savers' Network has collected and conserved local varieties within a network of gardeners who save and swap locally adapted seeds. From 1986 to 2008 it had a seed bank that received seed samples from around Australia. Over the space of eight years, culminating in 2008, that seed flow has been decentralised out to sub-groups, Local Seed Networks. These