Abstract

                                Fluffy paddy-soils occur in many parts of Tamil Nadu. Such soils allow sinking of working animals and labourers. The strength of such soils can be improved by compac tion. This technology involved passing of 400 kg stone roller 8 times over the soil at proctor moisture level. By this method, the bulk density of the soil was increased from 1.11 to 1.33 g/cc and increased the paddy yield by 17.8 per cent over control. Once compacted, the effect on the bulk density remained for 3 successive crops. The cost of compaction was only Rs. 250 per hectare while the net profit was Rs.1200 per hectare. Above all, the working animals did not sink and the labourers could work easily in the field.

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