A System of Rice Intensification (SRI) impact assessment was undertaken in 20 project villages in the Narayanpet block. Analyses were carried out on water usage, input cost, plant growth, farmer group collectivization, gross and net returns of SRI, and conventional paddy cultivation. The result shows that significant water saving was achieved for SRI, i.e., 8586 m3∙ha−1 under tubewell irrigation over conventional. Less utilisation of water and distance maintained in SRI reduced biotic and abiotic stress caused by snails and nutrient deprivation, respectively. Yield for sampled SRI farmers showed a 22% increase, 13% less than conventional paddy farmers, which highly impacts the SRI farmers’ net income, i.e., 69% more than the conventional returns. The SRI method has a lower labour deployment of 8 people/ha than the conventional method, which requires 16 people/ha. Input cost saving in these two categories has ranked top and fetched maximum production efficiency among the others. The seed cost was significantly (87%) reduced for SRI as 8 kg per ha was required rather than the conventional that required 62 kg/ha.
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SRI Global News: May - August 2024 *SRI-Rice -- System of Rice Intensification
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A field experiment was conducted at ICAR-Indian Institute of Rice Research, Rajendranagar, Hyderabad, to study the performance of different nitrogen management practices on nitrogen uptake of rice under different establishment methods. Mechanized SRI recorded higher grain, straw and biological yield and higher uptake of nitrogen in grain and straw than traditional methods. The authors concluded that nutrient expert-based recommendation of nitrogen with neem coated urea (NCU) and vermicompost (VC) reduce the loss of nitrogen and recorded significantly higher uptake of nitrogen in grain, straw and total (grain + straw) due to higher availability for a longer period during both the years of study.
SRI-Rice's insight:
Didal, Vijay Kumar, et al. 2019. Performance of different nitrogen management practices on nitrogen uptake of rice under different establishment methods. International Journal of Chemical Studies 7(3): 307-311 [Note: Plant density was greater than usual with SRI methods in order to accommodate mechanization in this study.] 
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A field experiment was conducted at Hyderabad, Telangana, to evaluate the effect of mechanized and conventional System of Rice Intensification. From the 2 years data, significantly higher gross energy output, net energy, energy-use efficiency, energy productivity and energy intensity were recorded with SRI over mechanized system of rice intensification (MSRI). Energy-use efficiency, energy productivity and energy intensity recorded were significantly higher with irrigation at 3 days after disappearance of pounded water (DADPW) and these were at par with saturation treatment. MSRI and SRI performed equally better with respect to benefit: cost ratio. Considerably higher gross and net returns were obtained with SRI as compared to MSRI. The labour saving was 21–25% higher with MSRI than SRI. Irrigation at 3 DADPW recorded significantly higher net returns and benefit: cost ratio, which was comparable with saturation treatment. Gross returns, net returns and benefit-cost ratio, were significantly higher with nitrogen application based on Leaf Color Chart...
SRI-Rice's insight:
Sudhakara, T. M., et al. 2017. Energy saving and profitability of rice (Oryza sativa) under mechanized and conventional system of rice intensification. Indian Journal of Agronomy 62(2): 57-62. (Full text at G. A. Ranjanna's ResearchGate page)
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Authors: Debashish Sen, Ravindra Adusumilli, Sabarmatee. Presentation at the Conference on Contested Agronomy, Institute of Development Studies, Brighton, UK, Feb. 23-25, 2016.
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SRI method a boon to paddy farmers. System of Rice Intensification (SRI), a new way of cultivating rice has gained prominence among the farmers of Mulugu and neighbouring villages in Medak district.
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There is a close relationship among agriculture, economics, energy and the environment. A comparison was made between conventional and the system of rice intensification (SRI) methods of rice cultivation by conducting two experiments. One field experiment was conducted from 2013 to 2017 at 25 locations across India under the All India Coordinated Rice Improvement Project and another experiment was conducted in 2017 using surveys from 262 randomly selected SRI farmers in Telangana state. The 5-year experimental data revealed that SRI methods produced higher rice grain yield (up to 55%); total costs of rice production with SRI were reduced by 22.71%; and break even output was reduced by 58.1%. Importantly, adoption of SRI also saved total energy inputs by 4350 MJ/ha and resulted in the lowest greenhouse gas emissions (0.280 kg CO2e/kg rice grain). Therefore, for ensuring higher productivity, net returns, energy efficiency and sustainable rice production the authors recommend adopting the environmentally-friendly SRI method of crop establishment in the Telangana region of India.
SRI-Rice's insight:
Nirmala, B., et al. 2021. Integrated assessment of system of rice intensification vs. conventional method of transplanting for economic benefit, energy efficiency and lower global warming potential in India. Agroecology and Sustainable Food Systems, doi:10.1080/21683565.2020.1868648 [Full text requires subscription or purchase. You can also join the SRI Research Network or contact the author]
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The system of rice intensification (SRI) has been promoted across Asia as a means to improve rice yields while decreasing water use and external inputs. It is argued to be a generalisable means by which to revalidate smallholder livelihoods and improve food security across the region. Current debates about SRI, however, remain predominantly technical in scope, focusing on field‐level outcomes. To more adequately understand the potential of SRI for smallholder farmers, we argue that it is necessary to situate SRI within a political ecology framework that addresses how the adoption and practice of SRI is shaped by uneven access to key assets including labour, water, and extension networks. Fieldwork conducted in Mahabubnagar district in Telangana, south India—where SRI had been widely disadopted despite the achievement of higher yields—is used to illustrate why agronomic analysis must engage directly with the complex social contexts in which farmers operate.
SRI-Rice's insight:
If your library does not have access to this journal, use this read-only version. https://onlinelibrary.wiley.com/doi/epdf/10.1111/joac.12268
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"...I was one of the first farmers to adopt the System of Rice Intensification (SRI) in India. Because of this, I can get a high output by using lesser water," Naidu says, as he points at his paddy fields.
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In a region known for farmer suicides and parched fields, Gudivada Nagaratnam Naidu returned to his roots, giving up a job, and went on to create a farm revolution...The turnaround came when Naidu read about SRI cultivation in a journal. A man of science, he decided to adopt it, and learnt that long-standing misconceptions are responsible for low yield of crops, such as paddy..
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K. Meesala and S. Rasala. 2022. Potential of System of Rice Intensification (SRI) to contribute to the policy objectives: Paradigm of three-tier approach in southern Telangana - A case study of Narayanpet. Agricultural Sciences 13(4): 542-554. doi: 10.4236/as.2022.134036.