Assessment of System of Rice Intensification (SRI) and Conventional Practices under Organic and Inorganic Management in Japan

Chapagain, Tejendra; Riseman, Andrew; Yamaji, Eiji

doi:10.1016/s1672-6308(12)60010-9

Cited by 40 publications

(25 citation statements)

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“…Roots of plants grown under CF regimes also showed higher proportion of decayed or nonfunctional parts compared with those under intermittent irrigation. Such observations were also highlighted by [52] and [5], who explained that continuous flooding caused the soil to become increasingly anaerobic with low redox potential causing adverse effects on root development and activity; moreover, plants grown under continually saturated or flooded soil produced a higher percentage of decayed root [4,5].…”

Section: Discussionmentioning

confidence: 82%

“…Zhang et al [43] also explained that reduced yields were also obtained under SRI management. Therefore, more rigorous and systematic research is needed to identify the potential advantages of SRI practices over those currently recommended [4]. Belder et al [55] noted that under AWD, discrepancies for variation among research may be attributed to differences in soil hydrological conditions and timing of irrigation methods applied; moreover, [56] cited varietal difference may also be a contributing factor.…”

Section: Discussionmentioning

confidence: 99%

“…World food security remains largely dependent on irrigated lowland rice, which is the main source of rice supply [2]. Fresh water for irrigation is becoming scarce because of population growth, increasing urban and industrial development, and the decreasing availability resulting from pollution and resource depletion [3][4][5]. Asia contributes more than 90% of the world's total rice production while using more than 90% of the total irrigation water [6].…”

Section: Introductionmentioning

confidence: 99%

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Impact of Water Management on Rice Varieties, Yield, and Water Productivity under the System of Rice Intensification in Southern Taiwan

Pascual

Wang

2016

Water

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Abstract:The system of rice intensification (SRI) uses less water and enhances rice yield through synergy among several agronomic management practices. This claim was investigated to determine the effects of crop growth, yield and irrigation water use, using two thirds of the recommended SRI practices and two rice varieties, namely Tainan11 (TN11) and Tidung30 (TD30). Irrigation regimes were (a) intermittent irrigation with three-day intervals (TD30 3 and TN11 3 ); (b) intermittent irrigation with seven-day intervals (TD30 7 and TN11 7 ) and (c) continuous flooding (TD30 F and TN11 F ). Results showed that intermittent irrigation of three-and seven-day intervals produced water savings of 55% and 74% compared with continuous flooding. Total water productivity was greater with intermittent irrigation at seven-day intervals producing 0.35 kg·grain/m 3 (TN11 7 ) and 0.46 kg·grain/m 3 (TD30 7 ). Average daily headed panicle reduced by 166% and 196% for TN11 3 and TN11 7 compared with TN11 F , with similar reduction recorded for TD30 3 (150%) and TD30 7 (156%) compared with TD30 F . Grain yield of TD30 was comparable among irrigation regimes; however, it reduced by 30.29% in TN11 7 compared to TN11 F . Plant height and leaf area were greater in plants exposed to intermittent irrigation of three-day intervals.

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Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of Water Management on Rice Varieties, Yield, and Water Productivity under the System of Rice Intensification in Southern Taiwan

Pascual

Wang

2016

Water

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“…World food security remains largely dependent on irrigated lowland rice, which is the main source of rice supply (Yang and Zhang, 2010). Fresh water for irrigation is becoming scarce because of population growth, increasing urban and industrial development, and the decreasing availability resulting from pollution and resource depletion (Chapagain et al, 2011 ;Thakur et al, 2011). Asia contributes more than 90% of the world's total rice production while using more than 90% of the total irrigation water (Khepar et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…SRI involves changes in certain management practices which provide better growing conditions for rice plants than traditional practices, particularly in the rhizosphere. SRI is a set of ideas and insights that emphasize the use of younger seedlings (<15-day-old) individually planted at wider spacing, together with the adoption of intermittent irrigation, organic fertilization and active soil aeration (Uphoff, 2007;Chapagain et al, 2011). SRI resulted in more vigorous growth of roots, reaching 13,004 cm/plant compared with non SRI results of 4,722 cm/plant.…”

Section: Introductionmentioning

confidence: 99%

Impact of water management on root morphology, growth and yield component of lowland rice varieties under the organic system of rice intensification

Aziez

Hanudin

Harieni

2018

J.Degrade.Min.Land Manage.

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:Water management is one of the keys to success in increasing rice production in paddy fields.Paddy rice production will decrease if the rice plants suffer from water stress, and conversely conventional cultivation is very wasteful of water. Local aromatic varieties have deeper rooting character than improved varieties making it more efficient in using water. The purpose of this study was to obtain more efficient and more productive aromatic local varieties in the use of irrigation water in the SRI organic cultivation system. This research was conducted in organic rice fields in Kebonagung village, Imogiri, Bantul with split plot design of 2 factors with 4 replications. Factor I: The mode of irrigation consists of (a) intermittent irrigation, and (b) continuous irrigation and Factor II: varieties consisting of (a) Mentikwangi, (b) Gabusan, (c) Sintanur and (d) IR64. The observation parameters included (1) root characters i.e. surface area of root, total length of root, and dry weight of root, (2) plant growth analysis i.e. specific leaf weight, net assimilation rate, plant growth rate, (3) and yield components i.e. weight 1000 grains, grain weight per hill, and grain weight per plot. The results showed that intermittent irrigation increased the surface area of root and the dry weight of root of Mentikwangi variety, and increased the specific leaf weight and weight of 1000 grains of IR64 variety, and increased the specific leaf weight and the net assimilation rate of Sintanur variety. Grain weight per hill and per plot showed no difference between intermittent irrigation and continuous irrigation. Grain weight per hill and per plot in intermittent irrigation achieved by Gabusan variety were 35.69 g and 14.28 kg respectively, while in continuous irrigation the grain weight achieved by Gabusan variety were 37.69 g and 15.08 kg respectively. In conclusion, there was no difference in yield between intermittent irrigation and continuous irrigation, so that the use of intermittent irrigation is more efficient in water use. Keywords : lowland rice, organic cultivation. root, SRI, water managementTo cite this article: Aziez, A.F., Hanudin, E. and Harieni, S. 2018. Impact of water management on root morphology, growth and yield component varieties of lowland rice under the organic system of rice intensification. J. Degrade. Min. Land Manage. 5(2):

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Alternate wet and dry irrigation technology as a sustainable water management and disease vector control tool

Talukdar

Bhattacharya

Gogoi

2022

Environmental Quality Mgmt

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Rising population and demands for rice as a staple food have created severe stress on freshwater availability for paddy cultivation. The literature suggests that conventional irrigation techniques are inadequate to overcome the water constraints arising from drought and extreme weather conditions. In the past few decades, there is an upsurge of scientific exploration of agricultural techniques in reinventing traditional methods of irrigation. Recently, alternate wet and dry irrigation (AWDI) method has shown great promise regarding profitable rice cultivation with limited water supply. The AWDI method is a trending water management system, which inundates rice fields with intermittent wet conditions followed by a dry period. This not only ensures adequate water supply but increases crop yield and water productivity index (WPI). The AWDI also helps in reducing parasitic mosquito population in the rice fields by minimizing the field flooding period and curtailing a major part of their life cycles. This review proposes a novel approach of emphasizing AWDI method as an important agricultural tool for supplementing rice fields with limited freshwater, increasing crop yield, and monitoring parasitic mosquito populations. The major objective of this study is to report the state‐of‐the‐art scenario of AWDI method, critically analyze the research gaps related to conventional methods of irrigation and appreciate the futuristic long‐term benefits of AWDI method. Literature survey was performed using search engines like Scopus, PubMed, Google Scholar, Research Gate, Science Direct, and Google Scholar. Comprehensive appraisal of resources (both offline and online) and critical evaluation of AWDI technicalities revealed that the AWDI reduced water usage by 45%, enhanced crop yield and improved WPI in paddy fields in the Asian sub‐continent. The AWDI also curtailed the propagation of lethal mosquito species (Cx. tritaenorhynchus, Cx. vishnui, and Cx pseudovishnui) in rice fields. Therefore, the current study endorses AWDI as a promising substitute of conventional irrigation and a novel approach towards fulfilling water constraints that may be practiced anywhere in the world.

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Assessment of System of Rice Intensification (SRI) and Conventional Practices under Organic and Inorganic Management in Japan

Cited by 40 publications

References 12 publications

Impact of Water Management on Rice Varieties, Yield, and Water Productivity under the System of Rice Intensification in Southern Taiwan

Impact of Water Management on Rice Varieties, Yield, and Water Productivity under the System of Rice Intensification in Southern Taiwan

Impact of water management on root morphology, growth and yield component of lowland rice varieties under the organic system of rice intensification

Alternate wet and dry irrigation technology as a sustainable water management and disease vector control tool

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