Medieval artifacts of a ploughshare and the images of the plough on dečani frescos... Its main parts were: ploughshare, disc coulter, and mouldboard, which was attached to a share and a handle....
An investigation into the techniques of direct drilling seeds into undisturbed, sprayed pasture : a thesis presented in partial fulfillment of the requirements for the degree of doctor of philosophy at massey university, palmerston north, new zealand... Maximum wheat seedling emergence with the chisel coulter assembly was 77%, which was significantly greater than hoe and triple disc coulters with 27% and 26% respectively....
Forces on double disc coulters with different angles of attack for a planter unit... The objective of the study was to assess straining on a double disc coulter of a commercial planter using a dynamometric car, which measured the vertical and horizontal forces operating on the three double disc supports at different angles...
The effects of drill coulter designs on soil physical properties and plant responses in untilled seedbeds : a thesis presented in partial fulfillment of the requirements for the degree of doctor of philosophy at massey university, palmerston north, new zealand... These were the commercially-available triple disc coulter and an experimental chisel coulter....
