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A field survey was carried out atCuddalore and Villupuram districtsof Tamil Nadu State to assess the impact of continues mechanisation in sugarcane cultivation on soil physical propertiesduring 2016 -17.Soil samples were taken at different depths viz.,0-20, 20-40 and 40-60 cm’s from mechanized sugarcane harvested fields as well as nearby non mechanised fields as control. The results showed that an increasedbulk density, hydraulic conductivity and infiltration ratein mechanized cultivation field soils particularly at deeper depths (20 – 40 cm) and (40 – 60 cm) implying mechanization induced soil compaction. Todevelop a suitable management strategy, field experiments were conducted at Sugarcane Research Station, Cuddalore during 2017-20 in a field where mechanized sugarcane cultivation was followed continuously for four years in a non -saline neutral sandy loam (0-15cm) andclay (15 – 60 cm) soil with the sugarcane variety CoC 25 under strip plot design in three replications. The main plot treatments of chisel plough, double disc plough and conventional ploughing in combination with the sub plot treatments of farm yard manure, composted coirpith, pressmud, green manure and composted sugarcane trash incorporation. |
