SRI Method of Paddy Cultivation - WASSAN

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10 SRI Method of Paddy Cultivation [ [ Raising Nursery [ Nursery raising by ‘mat’ method The nursery is raised on polythene sheet or empty fertiliser bags. A steel or wooden frame with four compartments is used. The dimensions of the frame are 1 x 0.5 metres. Each compartment would measure 0.125 sq.metres. The nursery bed of 4 cm thickness is prepared using well decomposed FYM and soil. Broadcast the seed on the bed and cover it with mud. After watering the nursery bed the frame can be removed and reused. For the first 5 days the beds are watered using rose can 2-3 times, every day depending on the need. Later the nursery can be watered by letting in water into the canal around the nursery bed. The nursery is uprooted in chunks and transported to the main field. [
Phyllocrons and Paddy yields In SRI method the first 4-5 weeks after transplantation the field would look terrible. The plants are small and wide apart. As there is no standing water the land looks dried up. However, in this stage the plant is preparing itself to tiller. The tillering starts in the second month and is in exponential stage in the third month. To understand this one has to know about ‘phyllocron’ in paddy. ‘Phyllocron’ is the time taken to form a new tiller with a leaf and root. This is mainly influenced by the temperature followed by day length, humidity, soil moisture, soil texture, availability of nutrients, aeration and sunlight. If all the conditions are favourable one phyllocron is completed in 5 days. Or else it might take 6-7 days or even more. It is ideal that the rice plant complete 12 phyllocrons by the time vegetative phase is over and panicle initiation has taken place. A new tiller after completing two phyllocrons also starts tillering. This means that the number of new tillers increases geometrically. If germination is considered as the first phyllocron stage, then it is ideal to transplant it in 2nd or 3rd phyllocron stage. By this the phenomenal growth that would take place from the 4th phyllocron would not get disturbed. The phylocron stage and number of tillers would be as follows. This is what happens in SRI method. Phyllocron stage 1 2 3 4 5 6 7 8 9 10 11 12 New tillers 1 0 0 1 1 2 3 5 8 12 20 31 Total tillers 1 1 1 2 3 5 8 13 21 33 53 84 SRI Method of Paddy Cultivation 11
Page 2 and 3: 2 To achieve higher productivity in
Page 4 and 5: 4 SRI is an acronym for System of R
Page 6 and 7: 6 Farmers who want to cultivate pad
Page 8 and 9: 8 Transporting the uprooted seedlin
Page 12 and 13: Marking in the field Marker What sp
Page 14 and 15: Transplanting at the marker points
Page 16 and 17: Mandava weeder In Gujarat, there is
Page 18 and 19: Rice plant can grow in water but it
Page 20: Advantages of SRI ❖ Saving on see

SRI Method of Paddy Cultivation - WASSAN

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