Presenter: A. Satyanarayana Presented at: 1st National SRI Symposium Institution: Acharya N. G. Ranga Agricultural University. Rajendranagar, Hyderabad, India Subject Country: Tamil Nadu, India

1. System of Rice Intensification (SRI) - “ Less can Produce more” Dr. A. SATYANARAYANA Director of Extension Acharya N. G. Ranga Agricultural University Rajendranagar, Hyderabad

5. The basic idea of SRI Rice plants do best when their - roots can grow large because the plants are transplanted carefully at wider spacing and grown on soil that is kept well aerated with abundant and diverse soil microorganisms

6. The contribution of soil microbial activity need to be taken more seriously The microbial flora causes a large number of biochemical changes in the soil that largely determine the fertility of soil (De Datta, 1981)

7. System of Rice Intensification (SRI) – a way out

23. Conventional system with more water

24. Intermittent wetting and drying and Aeration

29. After 12 days in nursery the plant height is 7.7 inches (18.8cm) Length of main root is 5 inches (12.7 cm) 4 leaves 8 small roots

34. Diagram of possible stalks of a rice shoot stalks grow following a regular cycle (phyllochron)

39. Green Manure crop (Sunhemp)

40. Crop residues

41. Crop residues

45. PADDY YIELDS UNDER SRI IN COASTAL AREA YIELD( Kg/ha)

46. PADDY YIELDS UNDER SRI IN TELANGANA AREA YIELD( Kg/ha)

47. PADDY YIELDS UNDER SRI IN RAYALASEEMA YIELD( Kg/ha)

48. PADDY YIELDS UNDER SRI REPORTED BY DOA YIELD( Kg/ha)

49. Performance of SRI in AP- Kharif 2003 1145 3.2-14.3 17 84 Coastal 2504 4.2-16.2 10 40 Telangana 4731 7.8-15.5 6 10 Rayalaseema 1869 3.2-16.2 33 134 AP State Yield advantage (kg/ha) Range of results Yield results > 10 t/ha No. of trials

50. Performance of SRI in AP- Kharif 2003 (Trials organized by State DOA) No. of trials - 69 Average SRI yield (t/ha) - 8.36 Control (t/ha) - 4.89 State average productivity (t/ha) - 3.87 5 districts averaged over 10 t/ha

51. Report on SRI Cultivation Name of the Farmer : Mr.A.Jayasurya Reddy Address : Tarimala Village, Singanamala Mandal Anantapur district, Andhra Pradesh Season : Rainy season 2003 Area under SRI : 0.2 ha Variety : BPT 5204 140 150 Duration(days) 8 12600 7110 Straw yield (kg/ha) 7 13297 5850 Grain yield (kg/ha) 6 3.2 19.2 Chaffy grain (%) 5 14.4 13.3 1000 grain weight (g) 4 14.2 15.5 Length of panicle (cm) 3 152 87 No. of grains/panicle 2 706 503 No. of productive tillers/m2 1. SRI Farmers method Parameter S.No.

52. Report on SRI Cultivation Name of the Farmer : Mr.K.Venka Subba Reddy Address : Konidedu Village, Panyam Mandal Kurnool district, Andhra Pradesh Season : Rainy season 2003 Area under SRI : 840 m 2 Variety : BPT 5204 18000 16250 Cost of cultivation (Rs/ha) 9 15774 5625 Grain yield kg/ha 8 21.1 18.8 1000 grain weight(g) 7 202 105 No. of grains/panicle 6 20.2 17.2 Panicle length (cm) 5 1040 510 Productive tillers/m 2 4 10-12-2003 10-12-2003 Date of harvesting 3 28-7-2003 31-7-2003 Date of Transplanting 2 19-7-2003 22-6-2003 Date of sowing 1. SRI Farmers method Parameter S.No.

53. Report on SRI Cultivation Name of the Farmer : Mr.Rakesh Address : EdulapalliVillage, Kotturu Mandal Mahabubnagar district, Andhra Pradesh Variety : BPT 5204 Area under SRI : 0.8 ha (*) Only organic manures were applied 8.9 4.7 Grain yield t/ha 7 210 150 No. of grains/panicle 6 20 14 Length of the panicle (cm) 5 40 20 No. of productive tillers/hill 4 5-12-2003 6-11-2003 Date of harvesting 3 17-7-2003 28-6-2003 Date of Transplanting 2 7-7-2003 6-6-2003 Date of sowing 1. SRI (*) Farmers method Parameter S.No.

54. Report on SRI Cultivation National Seed Project, ANGRAU, Hyderabad Variety : BPT 5204 Area under SRI : 0.2 ha SRI crop matured 10 days earlier 7.1 5.7 Yield t/ha 7 14.4 14.4 1000 grain weight (g) 6 166 162 No. of grains per panicle 5 21.0 21.4 Panicle length (cm) 4 28 10 No. of productive tillers/hill 3 108 114 Days to 50% flowering 2 10 30 Age of seedling at transplanting 1. SRI Farmers method Parameter S.No.

55. Report on SRI Cultivation Name of the Farmer : Mr.T.Sambi Reddy Address : Bhadirajupalem Village, ThotlavallurMandal Krishna district, Andhra Pradesh Area under SRI : 0.2 ha Variety : BPT 5204 17,500 15,000 Cost of cultivation per ha 8 12576 8036 Grain yield (kg/ha) 7 357 254 No. of grains/panicle 6 30 22 Length of the panicle(cm) 5 42 13 No. of productive tillers/hill 4 13-12-2003 13-12-2003 Date of harvesting 3 1-8-2003 17-8-2003 Date of Transplanting 2 20-7-2003 20-7-2003 Date of sowing 1. SRI Farmers method Parameter S.No.

56. SRI is counter - Intuitive Less can produce more Younger seedlings becomes larger and more productive Fewer plants/hill and per m 2 give more yield Less water can give greater yield

58. Benefits of SRI 1. Higher yields – Both grain and straw 2. Reduced duration (by 10 days) 3. Lesser chemical inputs 4. Less water requirement 5. Less chaffy grain % 6. Grain weight increased without change in grain size 7. Higher head rice recovery 8. Withstood cyclonic gales 9. Cold tolerance 10. Soil health improves through biological activity

60. Swarna under SRI

61. THANK YOU