Compared with tillage and minimum-tillage:-
Yield depressions are rare - even in the first year.
Yield increases are very likely - as new management skills are mastered.
Reduces fuel use - by 50-75% (25-50% compared with minimum tillage).
Reduces labour - by up to 60%.
Reduces time in the tractor seat – by up to 50%.
Reduces costs - by up to 50%.
More hectares can be farmed with the same resources (= more profit).
Alternatively, more time is available for management or leisure.
Machinery replacement and maintenance are less frequent.
Reduces soil erosion – wind and water.
Stones are not brought to the surface – they are progressively buried.
Equipment breakages in stony soils are rare – during tillage they are frequent.
Reduces soil moisture loss - each tillage operation can loose 12-25 mm of water.
Reduces irrigation frequency.
Capital cost is similar to tillage – but operating costs are much less.
Builds soil organic matter – tillage depletes organic matter.
Reduces CO2 emissions into the atmosphere by several fold.
Reduces soil compaction.
Increases soil trafficability – machinery and stock.
Enables earlier grazing of new pastures from reduced treading & pulling damage.
Cross Slot drills can increase crop yield
Tractors and combine harvesters can not!