(1) At first, researchers modified a transplanter by adding a front coulter to slice through cover crop residues, which worked well in moist, mellow soils.

(2) A Canadian researcher, however, reported that adding a coulter in front of a sweep manure injector increased draft force by 27 percent and caused greater soil surface roughness compared with the sweep alone.

(3) They lacked the long sleek lines of the local boats that went from tree to sea with such grace, under the shipwright's spell, turning the waves aside like coulters and combines, ploughing and harvesting.

(4) Suitable planting conditions exist when the surface soil is dry and has small hairline cracks that allow it to crumble when moved by the cutting coulters , disk openers, cover blades, and press wheels.

(5) The units are configured with 22-in. coulters in front, followed by a row cleaner, tillage/fertilizer knife and independently floating, 18-in. berm-building discs.