Answer
1. When farmers use the three-field rotation system they made one field empty every year, this allowed the soil to replenish lost nutrients.
2. In the 1700's Jethro Tull invented the seed drill that could plant tree row of seed at a time, it increased crop fields five fold
3. In 1730 Joseph Foljambe patented the Rotherham Plough it has an iron blade that was lighter and easier to use than the traditional wooden plough, it saved time and it cut labor costs.