. Yuvasenthilkumar, a post-graduate in organic agriculture, near Modakurichi in Tamil Nadu, used to raise paddy varieties such as IR 20 and ADT 38 on his two-acre farm till 2012.
Having developed an interest in native varieties — specifically, ones that grow without the use of fertilizers — he went on a quest for almost a year looking for such paddy varieties. He tried cultivating varieties from the delta areas. However, the yield was not satisfactory. Then, he learnt from elders in his locality that before the 1970s, they used to grow varieties such as Tiruchengode Sambha and Ayan Sambha. However, the seeds for these varieties were not available locally.
In 2014, he got 50 gm of seed imported by the Tamil Nadu Agriculture University from the International Rice Research Institute, Manila, for each of the 33 varieties native to the middle Cauvery basin.
The seeds were tried out and it was decided to go in for Tiruchengode Sambha and Ayan Sambha.
In four years, 45 acres belonging to 12 farmers came under the Tiruchengode Sambha native variety of rice in the Erode-Kodumudi-Tiruchengode belt. Last year, the variety was grown on 11 acres for commercial use. The average yield per acre was 1,700 kg and it was a 135-day crop. “We do not use even green manure,” he said. This year, this variety of paddy would be raised on 33.8 acres for commercial purposes.