Minimum tillage
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The concept of minimum tillage was started in U.S.A. The immediate cause for introducing minimum tillage was high cost of tillage due to steep rise in oil prices in 1974. Dr. G.B. Triplett is considered as father of modern tillage.

Minimum tillage is a method aimed at reducing tillage to the minimum necessary for ensuring a good seedbed, rapid germination, satisfactory plant stand and favourable growing conditions.

Types of minimum tillage

1. Row zone tillage
Primary tillage is done with mould board plough in the entire area of the field, secondary tillage operations like disking and harrowing are reduced and done only in row zone

2. Plough plant tillage
After the primary tillage s special planter is used for sowing. In one run over the field, the row zone is pulverized and seeds are sown by the planter

3. Wheel track tillage
Primary ploughing is done as usual. Tractor is used for sowing; the wheels of the tractor pulverize the row zone in which planting is done