Direct drilling, where the seed is drilled into unploughed soil, has become more widespread since the late 1980s. It maintains soil moisture, improves the soil structure and results in less soil loss from wind. It is common for the existing crop or pasture to be sprayed twice before being left fallow for about six weeks while the old vegetation breaks down. This direct drill follows the same layout as a standard seed drill. However, instead of a normal coulter (blade) for drilling the seed in the ground, it has a pair of discs in a V-shape that cut the surface of the soil and open up a small furrow.
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