Agronomy, Journal Year: 2024, Volume and Issue: 14(5), P. 909 - 909
Published: April 26, 2024
The ideas and methods that constitute the System of Rice Intensification (SRI) were first synthesized in Madagascar by Henri de Laulanié early 1980s [...]
Language: Английский
Agronomy, Journal Year: 2024, Volume and Issue: 14(2), P. 378 - 378
Published: Feb. 16, 2024
Rice provides ~20% of human dietary energy and, for many people, a similar share their protein. cultivation, however, produces significant greenhouse gas (GHG) emissions, comparable to those from the aviation sector. The main GHG rice production is methane, mostly result conventional cultivation (CRC) keeping fields continuously flooded during crop cycle. There extensive evidence that alternate wetting and drying (AWD) substantially reduces methane emissions. AWD one component System Intensification (SRI), an agroecological approach management plants, water, soil, nutrients. This article reviews field studies measuring emissions associated with adoption SRI. review confirms both SRI offer substantial reductions in per hectare compared CRC. These benefits are, partly offset by increases nitrous oxide carbon dioxide. also show (but not AWD) improves yield therefore further kg rice. concludes while reduce kilogram rice, can simultaneously contribute food security addressing drivers climate change. Further investigation sequestration under different methods needed strengthen base.
Language: Английский
Citations
6
Published: Sept. 25, 2023
Conservation Agriculture (CA) and the System of Rice Intensification (SRI) are both agroecologically-oriented production systems that support more productive, sustainable, resource-conserving farming, with synergies arising from their respective assemblages reinforcing agronomic methods. Application CA principles enhances growth, yield, performance crops grown under cropping system as well health resilience whole ecosystem. SRI practices create favorable conditions for development crop plants below- above-ground, can be enhanced by management. such reduced plant density m-2 elicit better phenotypic expression genetic potentials CA.. For these two to converge at field level, some plant, soil, water, nutrient management need modified or aligned. One adaptation is practice in on permanent, no-till, mulch covered raised beds, rainfall irrigation water furrows between beds furnishing controlling water; providing weed suppression improved recycling. rice benefit no-tillage, soil cover, diversified cropping, paddies beds. Several examples have shown this convergence feasible smallholding farmers larger-scale producers, also within a amenable considerable mechanization. This review article examines compatibility SRI, considering being utilized complementary ways. Further research experimentation needed identify assess appropriate capitalizing upon synergies.
Language: Английский
Citations
5
Agronomy, Journal Year: 2023, Volume and Issue: 13(10), P. 2492 - 2492
Published: Sept. 27, 2023
Initial evaluations of the System Rice Intensification in India and elsewhere focused mainly on its impacts yield income, usually covered just one or two seasons. Researchers at ICAR-Indian Institute Research have conducted a more comprehensive evaluation SRI methods over six years (six wet dry seasons), comparing them with three alternatives: modified, partially mechanized (MSRI) to reduce labor requirements; direct-seeded rice (DSR) as an alternative method for growing rice; conventional transplanting flooding fields (CTF). Grain was found be about 50% higher than CTF (6.35 t ha−1 vs. 4.27 ha−1), while MSRI essentially same (6.34 16% DSR (5.45 ha−1). Water productivity 5.32–6.85 kg ha-mm−1, followed by 4.14–5.72 ha-mm−1 MSRI, 5.06–5.11 DSR, 3.52–4.56 CTF. In comparison CTF, significantly enhanced soil microbial populations time: bacteria 12%, fungi 8%, actinomycetes 20%. Biological activity rhizosphere also indicated 8.5% greater dehydrogenase FDA enzymes under management. Similarly, indicator organic matter, glucosidase activity, 78% compared relative abundance beneficial microbial-feeding nematodes 7.5% that plant-pathogenic lower SRI. Relative methods, management reduced GHG emissions 21%, 23%, 13%, standard rice-growing practice. Economic analysis showed both gross net economic returns other systems evaluated. While six-year study documented many advantages crop management, it is promising adaptation provides similar benefits but requirements.
Language: Английский
Citations
5
Published: Nov. 1, 2023
Rice provides ~20% of human dietary energy and, for many people, a similar share their protein. cultivation, however, produces significant greenhouse gas (GHG) emissions, comparable to those from the aviation sector. The main GHG rice production is methane, mostly result conventional cultivation (CRC) keeping fields continuously flooded during crop cycle. There extensive evidence that alternate wetting and drying (AWD) substantively reduces methane emissions. AWD one component System Intensification (SRI), an agroecological approach management plants, water, soil nutrients practiced by millions farmers in both lowland irrigated upland rainfed cultivation. Thirteen countries have included SRI Nationally Determined Contributions reduction or climate change mitigation. This article reviews 16 field studies net emissions adoption AWD, nine SRI, two compared AWD. Where available, review includes data on yield therefore carbon dioxide-equivalent per kilogram produced. indicates offer substantial (~35–41%) hectare with However, offers ~66% greater than CRC, rice, ~54% more limited directly comparing support this finding. also appears potential sequester soil. lowers farmers’ costs production, adds income can make climate-friendly methods attractive. Both are greatly preferable current practices, but opportunities contribute food security while addressing drivers change.
Language: Английский
Citations
4
Agronomy, Journal Year: 2024, Volume and Issue: 14(10), P. 2238 - 2238
Published: Sept. 28, 2024
The adoption of innovations in rice cultivation is presumed to operate a rational manner, wherein new technologies or practices that successfully increase productivity resource efficiency are adopted by target farmers based on cost-benefit calculations. In contrast, this paper examines case public initiative promote the system intensification (SRI), widely disadopted technique despite reporting increasing yields and reduced water consumption. To explain paradox, we use concept socio-ecological niche examine range social institutional factors shape farmers’ decision-making. These included (1) access land labour; (2) management capacity; (3) quality networks for knowledge sharing. research suggests small variations these categories among otherwise similar smallholder households can markedly risk perceptions tangible outcomes with SRI. implication agricultural should be judged within their wider context rather than narrow evaluations agronomic efficiency. Importantly, must involve greater feedback mechanisms from smallholders variety socio-economic profiles help character extension strategies.
Language: Английский
Citations
1
Cogent Food & Agriculture, Journal Year: 2024, Volume and Issue: 10(1)
Published: March 6, 2024
To combat food insecurity in Madagascar, organizations have promoted the Système de Riziculture Intensifiée (SRI), or System of Rice Intensification, an agroecological rice-growing technique. However, despite its many benefits, adoption remains low (and disadoption high) Madagascar. better understand these dynamics, we use data from two surveys 328 rice farming households southeastern Madagascar to conduct analysis decisions adopt SRI, as well look at differences between adopters and non-adopters. Results show that strong intentions technique, actual rates were lower than expected. Indeed, while 89.8% (n = 291) respondents stated intention only 21.6% 60) had trialed it one year later. also indicate exposure SRI trainings did not spill-over effects "untreated" farmers, nearly all (95%, n 57) farmers adopting registered for training, with majority (89.5%, 51) attending some days training. Reasons given included lack seeds deemed suitable by insufficient labor, time other resources. Furthermore, using integrated Theory Planned Behavior - Technology Acceptance Model framework structural equation modeling (SEM), find perceived behavioral control, training participation household assets are significant predictors adoption. This research is important efforts support uptake improved agricultural practices among insecure populations. It fills a gap literature regarding lowland coastal
Language: Английский
Citations
1
Agronomy, Journal Year: 2023, Volume and Issue: 13(11), P. 2758 - 2758
Published: Nov. 1, 2023
Conservation Agriculture (CA) and the System of Rice Intensification (SRI) are both agroecologically-oriented production systems that support more productive, sustainable, resource-conserving farming, with synergies arising from their respective assemblages reinforcing agronomic methods. This review article examines compatibility between CA SRI, considering examples being utilized in complementary ways. The application principles enhances growth, yield, performance crops grown under cropping system as well health resilience whole ecosystem. SRI practices create favorable conditions for development crop plants below- above-ground, including can be enhanced by management. such reduced plant density m−2 elicit a better phenotypic expression genetic potentials CA. For these two to converge at field level, some plant, soil, water, nutrient management need modified or aligned. One adaptation is practice on permanent, no-till, mulch-covered raised beds, rainfall irrigation water furrows beds furnishing controlling providing weed suppression improved recycling. rice benefit no-tillage, mulch soil cover, diversified cropping, paddies beds. Several have shown this convergence feasible smallholding farmers larger-scale producers also within amenable considerable mechanization. Further research experimentation needed identify assess appropriate capitalizing upon synergies.
Language: Английский
Citations
3
CABI Agriculture and Bioscience, Journal Year: 2024, Volume and Issue: 5(1)
Published: Nov. 15, 2024
Abstract Background Rice is a major contributor to anthropogenic greenhouse gas (GHG) emissions, primarily methane, and at the same time will be negatively impacted by regional climate changes. Identifying rice management interventions reduce methane emissions while improving productivity is, therefore, critical for change mitigation, adaptation, food security. However, it can challenging conduct multivariate assessments of in field owing intensiveness data collection and/or challenges testing long-term changes meteorological conditions. Process-based modeling, evaluated against site-based data, provides an entry point evaluating impacts on systems assessing impacts, co-benefits, trade-offs under historical future Methods We leverage existing model combined yields, water using suite process-based coupled crop-soil experiments 83 growing sites across Red River Delta, Vietnam. test three with our model, characterized Alternate Wetting Drying (AWD) other principles representing System Intensification (SRI). Our simulations are forced as well conditions, represented five Earth Models high-emission scenario centered year 2050. evaluate efficacy these mitigation adaptation change. Results Two SRI significantly increased yields (one over 50%) conditions also reducing (or not increasing) emissions. These increase relative baseline practices, although decreases absolute all practices. Generally, where yield improved, so did crop water-use efficiency. were mixed resulted depending comparison. Nevertheless, one intervention reduced increase) both systems, there was considerable variation selected models. Conclusions high-yielding varieties, implemented site-specific serve goals, magnitude changes, particularly warming, may respect reductions. Future work should better bracket important sensitivities models disentangle which factors drive responses shown. Furthermore, analyses that integrate findings into socio-economic assessment inform if how SRI/AWD potentially benefit farmer livelihoods now future, adoption scaling principles.
Language: Английский
Citations
0
JOURNAL OF OASIS AGRICULTURE AND SUSTAINABLE DEVELOPMENT, Journal Year: 2023, Volume and Issue: 5(5), P. 13 - 23
Published: Nov. 3, 2023
With the world needing to feed an estimated 10 billion people by 2050, paradigms of organic and conventional agriculture play a critical role in meeting these needs ensuring environmental protection. This review critically examines two agricultural tracing their historical roots exploring techniques, impacts, economic considerations, contributions global food security. We highlight footprints with particular attention soil health, water management, greenhouse gas emissions, biodiversity. In addition, health impacts produced both systems societal implications will be discussed, closer look at aspects consumer safety, community dynamics, market trends. By highlighting strengths challenges farming systems, this argues for integrative approach that leverages best practices from worlds. Such harmonization aims create sustainable future not only feeds humanity but also preserves ecological balance on our planet.
Language: Английский
Citations
1
Published: Nov. 2, 2023
Rice provides ~20% of human dietary energy and, for many people, a similar share their protein. cultivation, however, produces significant greenhouse gas (GHG) emissions, comparable to those from the aviation sector. The main GHG rice production is methane, mostly result conventional cultivation (CRC) keeping fields continuously flooded during crop cycle. There extensive evidence that alternate wetting and drying (AWD) substantially reduces methane emissions. AWD one component System Intensification (SRI), an agroecological approach management plants, water, soil nutrients practiced by millions farmers in both lowland irrigated upland rainfed cultivation. Thirteen countries have included SRI Nationally Determined Contributions reduction or climate change mitigation. This article reviews 16 field studies net emissions adoption AWD, eight SRI, two compared AWD. Where available, review includes data on yield therefore carbon dioxide-equivalent per kilogram produced. indicates offer substantial (~35–41%) hectare with However, offers ~66% greater than CRC, rice, ~54% more limited directly comparing support this finding. also appears potential sequester soil. lowers farmers’ costs production, adds income can make climate-friendly methods attractive. Both are greatly preferable current practices, but opportunities contribute food security while addressing drivers change.
Language: Английский
Citations
1