Under this practices rice can be directly seeded either through dry or wet (pre germinated) seeding by drilling the seed into a fine seedbed at a depth of 2–3 cm. Wet seeding requires levelled fields to be harrowed and then flooded. The field is left for 12–24 hours after puddling, and then germinated seeds (48–72 hours) are sown by drum seeder. ndeed, weed management is a critical factor in direct seeding. Timely application of herbicides and one or two hand weeding provide effective control.
A field survey of Haryana and Uttar Pradesh study revealed that in 67% cases farmers obtained either equal or higher yields as compared with the conventional puddled transplanted rice. The marginal yield penalties in the balance 33% cases were mainly due to inexperience of the farmers (seeding in inappropriate soil moisture, deeper seed placement, delayed and improper use of herbicide molecules). The study also stated that comparative to puddled transplanted rice, the savings in DSR was in the range of US$ 70-102 ha-1. The tillage induced savings were mainly through reduced cost in land preparation (77%), irrigation water (15%) and labour (8%).Fig.1
Input cost in Puddled Transplanting Saving in DSR
General,EIS,Package of Practices