Fantastic yields in the system of rice intensification: fact or fallacy?

Sheehy, J. E.; Peng, Shaobing; Dobermann, A.; Mitchell, Peter; Ferrer, A.; Yang, Jianchang; Zou, Yingbin; Zhong, Xuhua; Huang, Jiehua

doi:10.1016/j.fcr.2003.12.006

Cited by 148 publications

(89 citation statements)

References 22 publications

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“…The Madagascar highlands may have a similar climate to Yunnan where high rice yields are reported (Ying et al, 1998 and also this report) and yield potential there may also be high. However, such high yields seem to exceed the potential yield as simulated by Sheehy et al (2004) in a model which incorporated a physiologically reasonable value of radiation use effi ciency. Clearly more information about experimental procedures, environmental conditions, methods of yield measurements, biomass yield and N uptake is needed, as Sinclair and Cassman (2004) and Dobermann (2004) pointed out.…”

Section: Assessment Of Crop and Resource Management Technologiesmentioning

confidence: 95%

“…Rafaralahy (2002) reported yields over 15 t ha -1 or even above 20 t ha -1 by SRI in highlands in Madagascar. Criticisms of these reports on SRI were made by Sheehy et al (2004), Dobermann (2004) and Sinclair and Cassman (2004) for the extraordinary high yields, effectiveness of SRI practices, experimental procedures and publications.…”

Section: Assessment Of Crop and Resource Management Technologiesmentioning

confidence: 99%

See 1 more Smart Citation

Can Yields of Lowland Rice Resume the Increases that They Showed in the 1980s?

Horie¹,

Shiraiwa²,

Homma³

et al. 2005

Plant Production Science

169

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Section: Assessment Of Crop and Resource Management Technologiesmentioning

confidence: 95%

Section: Assessment Of Crop and Resource Management Technologiesmentioning

confidence: 99%

Can Yields of Lowland Rice Resume the Increases that They Showed in the 1980s?

Horie¹,

Shiraiwa²,

Homma³

et al. 2005

Plant Production Science

169

View full text Add to dashboard Cite

“…Meskipun demikian, tidak mudah mengaplikasikan SRI di lapangan tanpa pengetahuan yang memadai. Dengan menerapkan irigasi intermittent (berselang), memungkinkan gulma tumbuh lebih cepat dibandingkan sistem konvensional, sehingga perlu penanganan yang baik karena dapat menurunkan produktivitas tanaman (Sheehy, Peng, Dobermann, Mitchell, Ferrer, Yang, Zou, Zhong, & Huang , 2004).…”

Section: System Of Rice Intensification (Sri)unclassified

Potensi Pemanasan Global dari Padi Sawah System of Rice Intensification (SRI) dengan Berbagai Ketinggian Muka Air Tanah

Arif

Setiawan

Munarso

et al. 2017

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System of Rice Intensification (SRI) is known as alternative rice farming for the mitigation of greenhouse gas (GHG) emissions. There are two main gasses emitted from paddy fields, i.e., methane (CH4) and nitrous oxide (N2O). Both of these gases have different characteristics as response on water availability in the fields which is represented by groundwater levels. Global Warming Potential (GWP) is used as an index that allowed comparisons of the global warming impacts of different gases at specific time period to warm the earth and it is ABSTRAKSystem of Rice Intensification (SRI) merupakan budidaya alternatif padi sawah untuk mitigasi Gas Rumah Kaca (GRK). Dua jenis GRK utama yang diemisikan dari padi sawah adalah gas metana (CH4) dan dinitrogen oksida (N2O). Gas tersebut memiliki respon berbeda terhadap keragaman ketersediaan air di lahan yang direpresentasikan dengan tinggi muka air tanah. Global Warming Potential (GWP) atau potensi pemanasan global digunakan untuk membandingkan potensi GRK dalam memanaskan bumi pada periode tertentu, dan disetarakan dengan nilai potensi gas CO2. Penelitian ini bertujuan untuk membandingkan potensi pemanasan global pada berbagai rezim air dengan ketinggian muka air yang berbeda di lahan sawah yang menerapkan SRI. Penelitian dilakukan pada budidaya padi sawah dengan tiga perlakuan rezim air selama satu musim tanam (14 April hingga 5 Agustus 2016) di plot percobaan laboratorium lapang Departemen Teknik Sipil dan Lingkungan IPB, Bogor, Jawa Barat. Ketiga perlakuan rezim air tersebut adalah rezim tergenang, moderate dan kering. Hasil penelitian menunjukkan bahwa rezim air kering menghasilkan potensi pemanasan global terendah dibandingkan kedua rezim yang lain. Nilai potensi pemanasan global yang dihasilkan adalah 34% dan 41% lebih rendah dibandingkan rezim air tergenang dan moderate. Rezim kering mampu meningkatkan produktivitas tanaman 21% lebih besar dibandingkan rezim air tergenang. Untuk memperkuat hasil yang diperoleh ini, maka penelitian lanjutan diperlukan dengan kondisi cuaca yang berbeda dan lokasi yang beragam.Kata kunci: gas rumah kaca, potensi pemanasan global, SRI, tinggi muka air tanah, rezim air

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“…However, these claims have recently been questioned in general (Dobermann et al, 2003). Sheehy et al (2004) studied the yield potential of SRI using a theoretical model for different locations in China and Madagascar, and corroborated with field experiments in China to show that SRI has no major role in improving rice yields. Dobermann et al (2003) reported that in intensively irrigated systems under more favourable soils, high yields can be achieved with management practices that are more cost effective than SRI.…”

Section: Introductionmentioning

confidence: 99%

Effects on Rice Growth of System of Rice Intensification under No-till Paddy in Korea

Meas¹,

Shon²,

Lee³

2011

Korean Journal of Soil Science and Fertilizer

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The first two authors equally contributed to this workThe objectives of this research were to investigate the system of rice intensification (SRI) on early growth, grain yield, and yield components under Chinese milk vetch residue-mulched no-tillage cropping systems at silt loam soil. The field was prepared as a split-plot design with three replications, main plots consisted of Dongjinbyeo, and Sobibyeo as a cultivar, and subplots consisted of 10×10 cm, 20×20 cm, and 30×30 cm as a planting density. Weed infestation during rice growing season was more severe in wider planting density 30×30 at 35 days after transplanting (DAT), and 20×20 cm at 95 DAT in both Sobibyeo and Dongjinbyeo. The maximum plant height was recorded in Sobibyeo compared with Dongjinbyeo, 10×10 cm and 20×20 cm planting density compared with 30×30 cm from 20 DAT until 60 DAT. Among the three planting densities, SPAD values were significantly greater in planting density of 20×20 cm both in Sobibyeo and Dongjinbyeo followed by 30×30 cm compared with closer planting density of 10×10 cm. The lowest grain yield was observed in wider planting density of 30×30 in both Sobibyeo and Dongjinbyeo due to lower number of panicle per unit area. Our findings suggest that optimum planting density for SRI in no-tillage paddy was 20×20 cm and it should be useful the systems to small-scale rice farmers in Korea as a sustainable farming system.

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Fantastic yields in the system of rice intensification: fact or fallacy?

Cited by 148 publications

References 22 publications

Can Yields of Lowland Rice Resume the Increases that They Showed in the 1980s?

Can Yields of Lowland Rice Resume the Increases that They Showed in the 1980s?

Potensi Pemanasan Global dari Padi Sawah System of Rice Intensification (SRI) dengan Berbagai Ketinggian Muka Air Tanah

Effects on Rice Growth of System of Rice Intensification under No-till Paddy in Korea

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