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COMPARATIVE ADVANTAGE OF SRI OVER
TRANSPLANTED RICE IN TERMS OF YIELD AND
SOME SOIL PROPERTIES
CHOWDHURY MONIRUL HAQUE
(ne...
Mandal, 2012
 Indian Rice Scenario : Area : 1.48 million ha,
Production: 4.03 million tons
Av. Productivity: 2.71 ton/ha.
 Lots of ef...
The traditional method of rice cultivation has no ability to
explore natural potential of the rice plant because it’s been...
SRI is neither a new variety nor a hybrid.
It is only the method of cultivating Paddy in
a particular pattern.
Any paddy v...
The System of Rice Intensification (SRI) is a “set of
insights and practices that change the management of
plants, soil, ...
Water saving- AWD
Yield ?
CH4 drop
NUE
SRI / Aerobic riceSRI / Aerobic rice
(Mandal, 2012)
9
Conventional
method
SRI method
Seed rate 60 kg/ ha 8 kg/ha
Nursery area 5 cents/acre 1 cent /acre
Age of seedlings 30 da...
Advantage of SRI over Conventionally Transplanted Rice
are Studied on the following Parameters:
1.Yield and Yield Attribut...
CASE STUDY
• Overall, grain yield with SRI was 49% higher than with TFR, with yield
enhanced at every N application dose. N-uptake, u...
Table 1:Effect of different methods of crop establishment
(Khadka, 2015)
 
Growth Parameters
Plant height Effective tillers Panicle length Grain weight
Kharif
(2008)
Treatment (cm) (m-2
) (cm) (g...
Table 3: Comparative Study of Yield attributing Characters in SRI over TPR
(Thakur et al.,2013)
CASE STUDY
Fig .1: Comparative Study of Grain and Straw Yield in SRI over TFR
(Source: Thakur et al,2013)
N Fertilizer Rat...
• There was significant advantage in term of water productivity
under SRI over conventional transplanted (CT) rice and les...
Table 4 : Effect of Crop Establishment Method (SRI & DSR) on Total
Water Use and Water Productivity
(Source: Thakur et al,...
Table 5: Effect of Crop Establishment Method on Total Water Use and Water
Productivity
( Raj et al., 2017)
Fig 2: Comparative Study of Total Water Productivity in SRI over PTR & DSR
( Raj et al., 2017)
Table 6: Comparative Study of Root Growth in SRI over TPR( Control)
( Rupela et al.,2006)
Fig 3: Comparative Study of Root Growth in SRI over
Transplanted Rice (Control)
(Rupela et al.,2006)
• Between two methods, SRI improved N, P and K uptake, milling
percentage and protein content. (Dass et al., 2012)
• The r...
Treatments pH EC
(dS/m)
SOC
(%)
Available N
(kg/ha)
Available
P2O5
(kg/ha)
Available
K2O
(kg/ha)
Eco-SRI 8.51 0.50 1.10 24...
N (kg ha-1
) NUE PFP
TF SRI Difference TF SRI Difference
80 (N1) 10.6a
15.7a
5.1 ** 61.3a
86.0a
24.7**
160 (N2) 12.6a
7.0b...
Cultivation N rates Basal
fertilizer
Tillering
fertilizer
Booting
fertilizer
Total NH3
loss
TF
 
 
N0 1.02a
0.80a
0.32a
2....
Fig 4: Comparative Study of Ammonia Loss in SRI over
Transplanted Rice (TPR)
Days After Fertilization
(Zhao et al.,2010 )
CASE STUDY
Fig 5: Comparative Study of Nutrient Use Efficiency in SRI
over Transplanted Rice
(Surekha et al.,2015)
Year Treatment
Total
Bacteria
Total
Actinomycetes
Total
Fungi   
Kharif 
(2008)
SRI- org 5.79 4.60 5.59
SRI- org + inorg 5...
CASE STUDY
Fig : Comparative Study MBC & MBN in SRI over
Transplanted Rice
(Zhao et al,2010)
Table 11 : Comparative Study of Microbiological Growth in SRI
over Transplanted Rice
(Lin et al.,2011)
SRI Transplanted
Fe...
Season Treatment Dehydrogenase MBC
(µg g-1
soil 24 h-1
) (µg g-1
soil 24 h-1
)
Kharif
(2008)
 
SRI-org 188.0 672.0
SRI-org...
CONCLUSION:
In terms of yield SRI gave higher yield in majority of the cases
over conventionally transplanted rice.
 On ...
ABC of SRIABC of SRI
A. 2 Leaf stage seedlings
ready for transplant
B. Transplanting of
single seedlings
C . Rice Crop sta...
COMPARATIVE  ADVANTAGE  OF SRI  OVER TRANSPLANTED  RICE  IN TERMS OF YIELD  AND SOME  SOIL  PROPERTIES
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COMPARATIVE ADVANTAGE OF SRI OVER TRANSPLANTED RICE IN TERMS OF YIELD AND SOME SOIL PROPERTIES

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Advantage of SRI over Conventionally Transplanted Rice are discussed on the following Parameters: Yield and Yield Attributing Characters, Water Productivity, Soil Properties, Nitrogen Use Efficiency ,Phosphorus and Potassium use efficiency, Ammonia Loss and Microbiological Properties.

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COMPARATIVE ADVANTAGE OF SRI OVER TRANSPLANTED RICE IN TERMS OF YIELD AND SOME SOIL PROPERTIES

  1. 1. COMPARATIVE ADVANTAGE OF SRI OVER TRANSPLANTED RICE IN TERMS OF YIELD AND SOME SOIL PROPERTIES CHOWDHURY MONIRUL HAQUE (neyonchowdhury16@gmail.com) and Prof. P. K. Mani (pabitramani@gmail.com) Department of Agril. Chemistry and Soil Science Bidhan Chandra Krishi Viswavidyalaya Mohanpur-741252,Nadia, West Bengal, India
  2. 2. Mandal, 2012
  3. 3.  Indian Rice Scenario : Area : 1.48 million ha, Production: 4.03 million tons Av. Productivity: 2.71 ton/ha.  Lots of efforts and new concepts are emerging to increase the productivity of rice (Uprety, 2006).  So, more rice production can play vital role to overcome (by reducing) the problem of food grains.  This additional rice will have to be produced on less land with less water, less labor and fewer chemicals.  Of the total rice area, more than 70% rice is grown under rainfed condition, 9% under upland and 21% under partially or fully irrigated conditions (NARC, 2007).
  4. 4. The traditional method of rice cultivation has no ability to explore natural potential of the rice plant because it’s been transplanted with old seedlings, closely spaced and continual flooding which held back the plants natural potential. (Tripathi et al., 2004).
  5. 5. SRI is neither a new variety nor a hybrid. It is only the method of cultivating Paddy in a particular pattern. Any paddy variety can be cultivated successfully by this method. This method was first developed in 1983 in Madagascar. (Laulanie´,1993). What is SRI cultivation?
  6. 6. The System of Rice Intensification (SRI) is a “set of insights and practices that change the management of plants, soil, water and nutrients used in growing irrigated rice.” SRI methods, promote the growth of more productive and robust plants. More simply: SRI is a package of practices especially developed to improve the productivity of rice. SRI involves intermittent wetting and drying of paddies as well as specific soil and crop management practices. It is civil society innovation.
  7. 7. Water saving- AWD Yield ? CH4 drop NUE SRI / Aerobic riceSRI / Aerobic rice (Mandal, 2012)
  8. 8. 9 Conventional method SRI method Seed rate 60 kg/ ha 8 kg/ha Nursery area 5 cents/acre 1 cent /acre Age of seedlings 30 days(5-6 leaves) 8-12 days(2 leaves) Spacing 15 cm x 10 cm 25 cm x 25 cm Plants/hill 3-4 1 Hills/ sq.m 33 16 Weeding Manual /chemical Mechanical Water management Continuous inundation Keep soil moist till panicle initiation stage
  9. 9. Advantage of SRI over Conventionally Transplanted Rice are Studied on the following Parameters: 1.Yield and Yield Attributing Characters. 2.Water Productivity. 3.Soil Properties •Nitrogen Use Efficiency •Phosphorus and Potassium use efficiency •Ammonia Loss •Microbiological Propertis
  10. 10. CASE STUDY
  11. 11. • Overall, grain yield with SRI was 49% higher than with TFR, with yield enhanced at every N application dose. N-uptake, use-efficiency, and partial factor productivity from applied N were significantly higher in SRI than TFR (Thakur et al.,2013) • The findings revealed that growing rice under SRI with 100% NPK recorded significantly higher mean grain yield of 76.56 q/ha than traditional transplanting with a grain yield of 64.76 q/ha, resulting in an yield increase of 15 percent. (Reddy et al.,2013) • Grain and straw yield and net return were significantly higher in SRI over CT and DT. (Suryavansi et al., 2012)
  12. 12. Table 1:Effect of different methods of crop establishment (Khadka, 2015)
  13. 13.   Growth Parameters Plant height Effective tillers Panicle length Grain weight Kharif (2008) Treatment (cm) (m-2 ) (cm) (g) SRI-org 65 221 21.2 20.6 SRI-org + inorg 74 373 22.8 21.8 BMP 73 256 21.4 21.3 LSD (0.05%) 1 53 1.17 2.6 Kharif (2009) SRI-org 57 312 17.7 18.2 SRI-org+ inorg 58 528 20.2 18.7 BMP 57 480 19.5 17.5 LSD (0.05%) 5.3 50 1.9 1.8 Rabi (2008-09) SRI-org 74 307 21.1 14.3 SRI-org+ inorg 76 444 21.6 14.9 BMP 72 370 20.6 14.0 LSD (0.05%) 6 57 1.4 0.7 (Balasubhramanium et al.,2014) Table 2: Comparative Study of Yield attributing Characters in SRI over TPR
  14. 14. Table 3: Comparative Study of Yield attributing Characters in SRI over TPR (Thakur et al.,2013)
  15. 15. CASE STUDY Fig .1: Comparative Study of Grain and Straw Yield in SRI over TFR (Source: Thakur et al,2013) N Fertilizer Rate (kg ha-1 )
  16. 16. • There was significant advantage in term of water productivity under SRI over conventional transplanted (CT) rice and less quantity of water was utilized in SRI for production of each unit of grain. A water saving of 34.5-36.0% in SRI and 28.9- 32.1% in aerobic rice was recorded as compared to CT rice. (Singh et al.,2013) • An average of 31 and 37% of irrigation water were saved during Kharif and Rabi seasons, respectively, with both SRI methods of rice cultivation compared to BMP of TPR. (Subhramanium et al.,2014)
  17. 17. Table 4 : Effect of Crop Establishment Method (SRI & DSR) on Total Water Use and Water Productivity (Source: Thakur et al,2014)
  18. 18. Table 5: Effect of Crop Establishment Method on Total Water Use and Water Productivity ( Raj et al., 2017)
  19. 19. Fig 2: Comparative Study of Total Water Productivity in SRI over PTR & DSR ( Raj et al., 2017)
  20. 20. Table 6: Comparative Study of Root Growth in SRI over TPR( Control) ( Rupela et al.,2006)
  21. 21. Fig 3: Comparative Study of Root Growth in SRI over Transplanted Rice (Control) (Rupela et al.,2006)
  22. 22. • Between two methods, SRI improved N, P and K uptake, milling percentage and protein content. (Dass et al., 2012) • The results revealed that soils amended with organic manures consistently registered significantly improved organic C, mineral, total N and grain yield compared to the unamended soil. (Babau et al., 2009) • Conventional and system of rice intensification (SRI) methods of planting showed statistically at par uptake of N, Fe, Zn, Mn and Cu in grain and straw. (Singh et al.,2013). • SRI practices have enhanced the uptake of nitrogen, thereby minimizing losses to the environment and providing economic benefits to farmers. (Thakur et al.,2013)
  23. 23. Treatments pH EC (dS/m) SOC (%) Available N (kg/ha) Available P2O5 (kg/ha) Available K2O (kg/ha) Eco-SRI 8.51 0.50 1.10 247 204 674 SRI 8.43 0.51 1.25 272 258 638 Convention al 8.44 0.51 1.18 251 256 609 Mean 8.44 0.51 1.18 257 239 641 CD (0.05) NS NS NS NS 26 34 Table 7: Comparative Study of Soil Properties in SRI over TPR (Source: Surekha et al,2015)
  24. 24. N (kg ha-1 ) NUE PFP TF SRI Difference TF SRI Difference 80 (N1) 10.6a 15.7a 5.1 ** 61.3a 86.0a 24.7** 160 (N2) 12.6a 7.0b -5.6 ** 37.9b 42.1b 4.2** 240 (N3) 7.1b 2.1c -5.0 ** 23.9b 25.5c 1.6 ns Analysis of variance NUE PFP Cultivation * ** N level ** ** Cultivation × N rate ** ** Table 8 : Comparative Study of Nitrogen Use Efficiency in SRI over Transplanted Rice ( Zhao et al., 2010)
  25. 25. Cultivation N rates Basal fertilizer Tillering fertilizer Booting fertilizer Total NH3 loss TF     N0 1.02a 0.80a 0.32a 2.14a N1 3.77b 1.58b 1.08b 6.44 b (5.37) N2 4.91c 3.03c 1.84c 9.78 c (4.77) N3 6.33d 4.19d 2.61d 13.13d (4.58) SRI N0 1.38a 1.03a 0.72a 3.14a N1 4.22b 1.98b 1.67b 7.88b (5.93) N2 6.06c 3.65c 2.48c 12.19c (5.66) N3 7.78d 5.04d 3.41d 16.23d (5.45) Table 9: Comparative Study of Ammonia Loss in SRI over Transplanted Rice ( Zhao et al.,2010 )
  26. 26. Fig 4: Comparative Study of Ammonia Loss in SRI over Transplanted Rice (TPR) Days After Fertilization (Zhao et al.,2010 )
  27. 27. CASE STUDY Fig 5: Comparative Study of Nutrient Use Efficiency in SRI over Transplanted Rice (Surekha et al.,2015)
  28. 28. Year Treatment Total Bacteria Total Actinomycetes Total Fungi    Kharif  (2008) SRI- org 5.79 4.60 5.59 SRI- org + inorg 5.79 4.66 5.71 BMPCTR 5.77 4.41 5.42   LSD (5%) 0.01 0.11 0.10 Kharif (2009) SRI- org 5.97 5.00 3.81 SRI- org + inorg 6.08 4.90 3.81 BMPCTR 5.80 4.73 3.78   LSD (5%) 0.08 0.200 0.02 Rabi (2008–09)   SRI- org * * * SRI- org + inorg 6.94 5.56 5.72 BMPCTR 6.81 5.52 5.59   LSD (5%) 0.16 0.10 0.13 Rabi (2009–10)   SRI-org 6.88 6.04 4.88 SRI-org + inorg 6.76 5.84 4.99 BMPCTR 6.76 5.69 4.68   LSD (5%) 0.01 0.13 0.04 Table 10 : Comparative Study of Microorganism’s population in SRI over TPR (Balasubhramanium et al.2014)Microbial populations were expressed in Log10 values; * = not analyzed
  29. 29. CASE STUDY Fig : Comparative Study MBC & MBN in SRI over Transplanted Rice (Zhao et al,2010)
  30. 30. Table 11 : Comparative Study of Microbiological Growth in SRI over Transplanted Rice (Lin et al.,2011) SRI Transplanted Fertilization Actinomycetes (106 ) Fertilization Actinomycetes (106 ) F25 66.3 F25 52.3 F50 119.7 F50 84.4 F100 259.6 F100 93.3 Significance: Lower case significance at 5% level; capital letters significance at 1 % level F25 : 25 % organic; F50: 50 % organic; F100 : 100 % organic
  31. 31. Season Treatment Dehydrogenase MBC (µg g-1 soil 24 h-1 ) (µg g-1 soil 24 h-1 ) Kharif (2008)   SRI-org 188.0 672.0 SRI-org + inorg 186.0 643.0 BMPCTR 170.0 500.0 LSD (5%) 13.6 120.7 Kharif (2009)   SRI-org 97.0 623.0 SRI-org + inorg 110.0 605.0 BMPCTR 82.0 450.0 LSD (5%) 14.8 151.0 Rabi (2008–09)    SRI-org * * SRI-org + inorg 326.0 1218.0 BMPCTR 267.0 1153.0 LSD (5%) 26.2 19.5 Rabi (2009–10) SRI-org * * SRI-org + inorg 274.0 781.0   BMPCTR 183.0 706.0   LSD (5%) 89.5 4.3 Table 12 : Comparative Study MBC & MBN in SRI over TPR (Balasubhramanium et al.,2014)
  32. 32. CONCLUSION: In terms of yield SRI gave higher yield in majority of the cases over conventionally transplanted rice.  On the ground of water productivity SRI out performed TPR in almost all the researches that means SRI is the method that will make the ever increasing problem of water scarcity. The root growth was higher in case of SRI that will invite more no of beneficial microorganisms Nutrient use efficiency was also higher in SRI. The microbiological activity , i.e., population and enzymatic activity was greater in case of SRI which will help the crop to use the nutrients more efficiently leading to sustaining the soil health.
  33. 33. ABC of SRIABC of SRI A. 2 Leaf stage seedlings ready for transplant B. Transplanting of single seedlings C . Rice Crop stand in SRI Method. Thanks for your patient hearing

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