Plant and Soil

, Volume 393, Issue 1–2, pp 361–381 | Cite as

A review of the system of rice intensification in China

Review Article

Abstract

Background

Continually increasing food demand from a still–growing human population and the need for environmentally–friendly strategies for sustainable agricultural development require innovation and further enhancement of cropping systems’ factor productivity. The system of rice intensification (SRI) has been proposed as a suitable strategy to improve rice yields with reduced input requirements, most notably water and seed, while enhancing soil and water quality because agrochemical applications can be cut back.

Scope and conclusions

This review examines the performance of SRI methods in China since first introduced in 1999 and considers their implications for further agricultural systems development. A meta–analysis of studies conducted over the past decade in China indicates that SRI methods have been increasing rice yield in comparison trials with current improved practices by more than 10 %. These higher yields are being attained with reduced field requirements for irrigation water and with much–reduced seed rates. This can lower farmers’ costs of production and enhance their net income from rice. Such benefits are accompanied by other advantages reported by various researchers in China and elsewhere, such as greater disease resistance, higher nitrogen use efficiency, enhanced photosynthetic rates, and improved physiological traits.

With appropriate modifications for local conditions, there is increasing evidence that SRI principles and practices can offer an environment–friendly strategy for sustainable agriculture in China and elsewhere. This review considers Chinese and other research on opportunities for improving agricultural production and food security with less strain on environmental resources, and for helping farmers cope with increasing climatic stresses now and in the future.

Keywords

Climatic change Crop production Food security Low–input production Rice Sustainable agricultural intensification 

Notes

Acknowledgments

This is the joint contribution between Northwest A&F University and Agriculture and Agri–Food Canada. AAFC–ECORC contribution No. 15–020. We thank Shan Huang for providing valuable suggestions on data analysis.

Compliance with Ethical Standards

Funding

This study was funded by National Natural Science Foundation of China (Project No. 31401348).

Conflict of interest

The authors declare that they have no conflict of interest.

References

  1. Abraham B, Araya H, Berhe T, Edwards S, Gujja B, Khadka R, Koma Y, Sen D, Sharif A, Styger E, Uphoff N, Verma A (2014) The system of crop intensification: reports from the field on improving agricultural production, food security, and resilience to climate change for multiple crops. Agric Food Secur 3:4, http://www.agricultureandfoodsecurity.com/content/3/1/4 Google Scholar
  2. Ainsworth EA, Davey PA, Bernacchi CJ, Dermody OC, Heaton EA, Moore DJ, Morgan B, Naidu SL, Ra HY, Zhu X, Curtis PS, Long SP (2002) A meta–analysis of elevated [CO2] effects on soybean (Glycine max) physiology, growth and yield. Global Chang Biol 8:695–709Google Scholar
  3. Anas I, Rupela O, Thiyagarajan T, Uphoff N (2011) A review of studies on SRI effects on beneficial organisms in rice soil rhizospheres. Paddy Water Environ 9:53–64Google Scholar
  4. Barah BC (2009) Economic and ecological benefits of System of Rice Intensification (SRI) in Tamil Nadu. Agric Econ Res Rev 22:209–214Google Scholar
  5. Barison J, Uphoff N (2010) Rice yield and its relation to root growth and nutrient–use efficiency under SRI and conventional cultivation: an evaluation in Madagascar. Paddy Water Environ 9:3–11Google Scholar
  6. Belder P, Spiertz JHJ, Bouman BAM, Lu G, Tuong TP (2005) Nitrogen economy and water productivity of lowland rice under water–saving irrigation. Field Crop Res 93:169–185Google Scholar
  7. Bouman BAM, Tuong TP (2001) Field water management to save water and increase its productivity in irrigated rice. Agric Water Manag 49:11–30Google Scholar
  8. Bruinsma J (2009) The resource outlook to 2050: by how much do land, water, and crop yields need to increase by 2050? In: Bruinsma J (ed) Expert meeting on how to feed the world in 2050. FAO, Rome (www.fao.org/fileadmin/templates/)Google Scholar
  9. Chapagain T, Yamaji E (2010) The effects of irrigation method, age of seedling and spacing on crop performance, productivity and water–wise rice production in Japan. Paddy Water Environ 8:81–90Google Scholar
  10. Chen H, Zhu D, Wu L, Lin X, Zhang Y (2007) Effect of different fertilizer–N management on nitrogen use efficiency of rice and soil microorganism under SRI. China J Soil Sci 38:687–692, in Chinese with English abstractGoogle Scholar
  11. Chen S, Zheng X, Wang D, Xu C, Zhang X (2013) Influence of the improved system of rice intensification (SRI) on rice yield, yield components and tillering characteristics under different rice establishment methods. Plant Prod Sci 16:191–198Google Scholar
  12. Chen XP, Cui ZL, Fan MS, Vitousek P, Zhao M, Ma WQ, Wang ZL, Zhang WJ, Yan XY, Yang JC, Deng XP, Gao Q, Zhang Q, Guo SW, Ren J, Li SQ, Ye YL, Wang ZH, Huang JL, Tang QY, Sun YX, Peng XL, Zhang JW, He MR, Zhu YJ, Xue JQ, Wang GL, Wu L, An N, Wu LQ, Ma L, Zhang WF, Zhang FS (2014) Producing more grain with lower environmental costs. Nature 514:486–489PubMedGoogle Scholar
  13. Chi F, Shen SH, Cheng HP, Jing YX, Yanni YG, Dazzo FB (2005) Ascending migration of endophytic rhizobia, from roots to leaves, inside rice plants and assessment of benefits to rice growth physiology. J Appl Environ Microbiol 71:7271–7278Google Scholar
  14. Chi F, Yan PF, Han F, Shen XY, Shen SH (2010) Proteomic analysis of rice seedlings infected by Sinorhizobium meliloti 1021. Proteomics 10:1861–1874PubMedGoogle Scholar
  15. Curtis PS, Wang X (1998) A meta–analysis of elevated CO2 effects on woody plant mass, form, and physiology. Oecologia 113:299–313Google Scholar
  16. Dass A, Chandra S (2013) Irrigation, spacing and cultivar effects on net photosynthetic rate, dry matter partitioning of rice under system of rice intensification in Mollisols of Northern India. Exp Agric 49:504–523Google Scholar
  17. Deb D, Laessig J, Kloft M (2012) A critical assessment of the importance of seedling age in the system of rice intensification (SRI) in eastern India. Exp Agric 48:326–346Google Scholar
  18. Diwakar MC, Kumar A, Verma A, Uphoff N (2012) Report on the world–record SRI yields in kharif season 2011 in Nalanda District, Bihar State, India. Agric Today, New Delhi 15:54–56Google Scholar
  19. Dobermann A (2004) A critical assessment of the system of rice intensification. Agric Syst 79:261–281Google Scholar
  20. Fang Z, Styger E (2014) System of rice intensification in China: research dynamics and innovative adaptations. Presentation made at 4th Intl. Rice Congress, Bangkok, Oct 28–31. http://www.slideshare.net/SRI.CORNELL/1423–system–of–rice–intensification–in–china
  21. Feng ZZ, Kobayashi K, Ainsworth EA (2008) Impact of elevated ozone concentration on growth, physiology, and yield of wheat (Triticumaestivum L.): a meta–analysis. Global Chang Biol 14:2696–2708Google Scholar
  22. Gehring C, de Moura E, Soares R, Aguiar A, De Sousa A, Boddey R (2013) Ecological intensification of rice production in the lowlands of Amazonia–options for smallholder rice producers. Eur J Agron 46:25–33Google Scholar
  23. Godfray HCJ, Beddington JR, Crute IR, Haddad L, Lawrence D, Muir JF, Pretty J, Robinson S, Thomas SM, Toulmin C (2010) Food security: the challenge of feeding 9 billion people. Science 327:812–818PubMedGoogle Scholar
  24. Gopalakrishnan S, Kumar R, Humayun P, Srinivas V, Kumari B, Vijayabharathi R, Singh A, Surekha K, Padmavathi C, Somashekar N, Rao P, Latha P, Rao L, Babu V, Viraktamath B, Goud V, Loganandhan N, Gujja B, Rupela O (2014) Assessment of different methods of rice (Oryza sativa. L) cultivation affecting growth parameters, soil chemical, biological, and microbiological properties, water saving, and grain yield in rice–rice system. Paddy Water Environ 12:79–87Google Scholar
  25. He Y, Jian F, Ou S, Huang S, Lin L, Cen Y (2004a) Trial system of rice intensification (SRI) and its prospect in Guangxi. Guangxi Agric Sci 35:362–364, in Chinese with English abstractGoogle Scholar
  26. He Y, Ma J, Wei W (2004b) Effect of different kinds of fertilizers on the yield and grain quality in the SRI. Chin Agric Sci Bull 20:177–181, in Chinese with English abstractGoogle Scholar
  27. Hedges LV, Gurevitch J, Curtis PS (1999) The meta–analysis of response ratios in experimental ecology. Ecology 80:1150–1156Google Scholar
  28. Huang M, Zou Y, Feng Y, Cheng Z, Mo Y, Ibrahim M, Xia B, Jiang P (2011) No–tillage and direct seeding for super hybrid rice production in rice–oilseed rape cropping system. Eur J Agron 34:278–286Google Scholar
  29. IRIN (2012) Analysis: why rice intensification matters in Asia. U.N. Office for the Coordination of Humanitarian Affairs, Bangkok, http://www.irinnews.org/report/95342/analysis–why–rice–intensification–matters–in–asia Google Scholar
  30. Iswandi A, Utari NA, Sukmasakti YV, Widyastuti R (2014) Rice ratooning with high yield is possible, poster presented at 4th International Rice Congress, Bangkok, October 27–31Google Scholar
  31. IWMI (2007) Rice: feeding the billions. In Water for food, water for life: a comprehensive assessment of water management in agriculture, Chapter 14 Earthscan, London, and International Water Management Institute, Colombo. (http://www.iwmi.cgiar.org/Assessment/)
  32. Jagannath P, Pullabhotla H, Uphoff N (2013) Meta–analysis evaluating water use, water saving and water productivity in irrigated production of rice with SRI vs. standard management methods. Taiwan Water Conserv 61:14–49, in English with Chinese abstractGoogle Scholar
  33. Jiang H, Guo L, Qian Q (2007) Recent progress on rice genetics in China. J Integr Plant Biol 49:776–790Google Scholar
  34. Jin X, Jin Z, Sun T, Shang W, Li D, Xu F (2005) Summaries in the study of 3–S cultivating technique of rice in cold zone. Chin Agric Sci Bull 21:136–141, in Chinese with English abstractGoogle Scholar
  35. Kabir H, Uphoff N (2007) Results of disseminating the system of rice intensification with farmer field school methods in Northern Myanmar. Exp Agric 43:464–476Google Scholar
  36. Kassam A, Stoop W, Uphoff N (2011) Review of SRI modifications in rice crop and water management and research issues for making further improvements in agricultural and water productivity. Paddy Water Environ 9:163–180Google Scholar
  37. Lal R (2004) Carbon from farm operations. Environ Int 30:981–990PubMedGoogle Scholar
  38. Latif MA, Ali MY, Islam MR, Badshah MA, Hasan MS (2009) Evaluation of management principles and performance of the system of rice intensification (SRI) in Bangladesh. Field Crop Res 114:255–262Google Scholar
  39. Laulanié H (1993) Le système de riziculture intensive malgache. Tropicultura 11:110–114Google Scholar
  40. Lin H, Wu S, Wu C, Li X, Liao C, Chen A (2005a) Agronomic performance of system for rice intensification under single late–season rice. Crops J 1:36–37, in Chinese with English abstractGoogle Scholar
  41. Lin XQ, Zhou W, Zhu DF, Zhang Y (2005b) Effect of SWD irrigation on photosynthesis and grain yield of rice (Oryza sativa L.). Field Crop Res 94:67–75Google Scholar
  42. Lin H, Wu C, Lai L (2008) The primary effects of system for rice intensification on conventional early Indica rice. China Rice 5:56–58, in Chinese with English abstractGoogle Scholar
  43. Lin XQ, Zhu DF, Chen H, Cheng SH, Uphoff N (2009) Effect of plant density and nitrogen fertilizer rates on grain yield and nitrogen uptake of hybrid rice (Oryza Sativa L.). J Agric Biotechnol Sust Dev 1:44–53Google Scholar
  44. Lin XQ, Zhu DF, Lin X (2011) Effects of water management and organic fertilization with SRI crop practices on hybrid rice performance and rhizosphere dynamics. Paddy Water Environ 9:33–39Google Scholar
  45. Lu S, Dong Y, Yuan J, Lee H, Padilla H (2013) A high–yielding, water–saving innovation combining SRI with plastic cover on no–till raised beds in Sichuan, China. Taiwan Water Conserv 61:94–109, in English with Chinese abstractGoogle Scholar
  46. Ma BL, Ying J, Dwyer LM, Gregorich EG, Morrison MJ (2003) Crop rotation and soil nitrogen amendment effects on maize production in Eastern Canada. Can J Soil Sci 83:483–495Google Scholar
  47. Mati B, Wanjogu R, Odongo B (2011) Introduction of the system of rice intensification in Kenya: experiences from Mwea irrigation scheme. Paddy Water Environ 9:145–154Google Scholar
  48. Mishra A, Salokhe V (2011) Rice root growth and physiological responses to SRI water management and implications for crop productivity. Paddy Water Environ 9:45–52Google Scholar
  49. Mishra A, Whitten M, Ketelaar JW, Salokhe VM (2007) The system of rice intensification (SRI): a challenge for science, and an opportunity for farmer empowerment towards sustainable agriculture. Int J Agric Sustain 4:193–212Google Scholar
  50. Mueller N, Gerber J, Johnston M, Ray D, Ramankutty N, Foley J (2012) Closing yield gaps through nutrient and water management. Nature 490:254–257PubMedGoogle Scholar
  51. Ndiiri J, Mati B, Home P, Odongo B, Uphoff N (2013) Adoption, constraints and economic returns of paddy rice under the system of rice intensification in Mwea, Kenya. Agric Water Manag 129:44–55Google Scholar
  52. Nemoto K, Morita S, Baba T (1995) Shoot and root development in rice related to the phyllochron. Crop Sci 35(1):24–29Google Scholar
  53. Noltze M, Schwarze S, Qaim M (2012) Understanding the adoption of system technologies in smallholder agriculture: the system of rice intensification (SRI) in Timor Leste. Agric Syst 108:64–73Google Scholar
  54. Peng S, Huang J, Sheehy J, Laza R, Visperas R, Zhong X, Centeno G, Khush G, Cassman K (2004) Rice yield declines with higher night temperature from global warming. Proc Natl Acad Sci U S A 101:9971–9975PubMedCentralPubMedGoogle Scholar
  55. Peng S, Tang Q, Zou Y (2009) Current status and challenges of rice production in China. Plant Prod Sci 12:3–8Google Scholar
  56. Plabita R, Raj RK (2014) Extent of adoption of practices under system of rice intensification in Odisha. Oryza 51:81–85Google Scholar
  57. Rabenandrasana J (1998) Revolution in rice intensification in Madagascar. LEISA Magazine 15(3/4):48–49Google Scholar
  58. Reddy K, Sreenivasulu S, Manohar C (2012) A report on direct–seeding technology with SRI concepts in rice using drum seeder in Chittoor district of Andhra Pradesh, India. Acharya Ranga Krishi Vigyan Kendra, Tirupati, AP, India (http://ciifad.cornell.edu/sri/countries/india/AP/InAPDrumSeeder_KVKBalaReddy09.pdf)
  59. Rosenberg MS, Adams DC, Gurevitch J (2000) Metawin: statistical software for meta–analysis, version 2.1. Sinauer Associates, Inc, SunderlandGoogle Scholar
  60. Santos A, Fageria N, Prabhu A (2003) Rice ratooning management practices for higher yields. Commun Soil Sci Plant Anal 34:881–918Google Scholar
  61. Sato S, Uphoff N (2007) A review of on–farm evaluations of system of rice intensification (SRI) methods in eastern Indonesia. CAB Rev 2:54Google Scholar
  62. Satyanarayana A, Thiyagarajan T, Uphoff N (2007) Opportunities for water saving with higher yield from the system of rice intensification. Irrig Sci 25:99–115Google Scholar
  63. Setiawan BI, Imansyah A, Arif C, Watanabe T, Mizoguchi M, Kato H (2014) SRI paddy growth and GHG emissions at various groundwater levels. Irrig Drain 63:612–620Google Scholar
  64. Sharif A (2011) Technical adaptations for mechanized SRI production to achieve water saving and increased profitability in Punjab, Pakistan. Paddy Water Environ 9:111–119Google Scholar
  65. Sheehy JE, Peng S, Dobermann A, Mitchell PL, Ferrer A, Yang J, Zou Y, Zhong X, Huang J (2004) Fantastic yields in the system of rice intensification: fact or fallacy? Field Crop Res 88:1–8Google Scholar
  66. Sinha SK, Talati J (2007) Productivity impacts of the system of rice intensification (SRI): a case study in West Bengal, India. Agric Water Manag 87:55–60Google Scholar
  67. Stoop WA (2011) The scientific case for system of rice intensification and its relevance for sustainable crop intensification. Int J Agric Sustain 9:443–455Google Scholar
  68. Stoop WA, Uphoff N, Kassam AH (2002) A review of agricultural research issues raised by the system of rice intensification (SRI) from Madagascar: opportunities for improving farming systems for resource–poor farmers. Agric Syst 71:249–274Google Scholar
  69. Takahashi K, Barrett C (2014) The System of Rice Intensification and its impacts on household income and child schooling: Evidence from rural Indonesia. Amer J Agric Econ 96:269–289Google Scholar
  70. Tao L, Wang X, Min SK (2002) Physiological effects of SRI methods in the rice plant. In: Uphoff N, Fernandes ECM, Yuan LP, Peng JM, Rafaralahy R, Rabenandrasana J (eds) Assessments of the system of rice intensification (SRI): Proceedings of an international conference, Sanya, China, April 1–4, 2002. CIIFAD, Ithaca, pp 132–136, http://sri.ciifad.cornell.edu/proc1/sri_29.pdf Google Scholar
  71. Thakur AK, Uphoff N, Antony E (2010a) An assessment of physiological effects of system of rice intensification (SRI) practices compared to recommended rice cultivation practices in India. Exp Agric 46:77–98Google Scholar
  72. Thakur AK, Rath S, Roychowdhury S, Uphoff N (2010b) Comparative performance of rice with system of rice intensification (SRI) and conventional management using different plant spacings. J Agron Crop Sci 196:146–159Google Scholar
  73. Tilman D, Cassman KG, Matson PA, Naylor R, Polasky S (2002) Agricultural sustainability and intensive production systems. Nature 418:671–677PubMedGoogle Scholar
  74. Toriyama K, Ando H (2011) Towards an understanding of the high productivity of rice with system of rice intensification (SRI) management from the perspectives of soil and plant physiological processes. Soil Sci Plant Nutr 57:636–649Google Scholar
  75. Turner TR, James EK, Poole PS (2014) The plant microbiome. Genome Biol 14:209. doi: 10.1186/gb-2013-14-6-209 Google Scholar
  76. Uphoff N (1999) Agroecological implications of the system of rice intensification (SRI) in Madagascar. Environ Dev Sustain 1:297–313Google Scholar
  77. Uphoff N (2003) Higher yields with fewer external input? The System of Rice Intensification and potential contributions to agricultural sustainability. Int J Agric Sustain 1:38–50Google Scholar
  78. Uphoff N (2012) Supporting food security in the 21st century through resource-conserving increases in agricultural production. Agric Food Secur 1:18Google Scholar
  79. Uphoff N, Randriamiharisoa R (2002) Possibilities for reducing water use in irrigated rice production through the Madagascar system of rice intensification (SRI). In: Bouman BA et al (eds) Water–wise rice production. Intl. Rice Research Institute, Los Baños, pp 71–87Google Scholar
  80. Uphoff N, Ball A, Fernandes ECM, Herren H, Husson O, Laing M, Palm CA, Pretty J, Sanchez PA, Sanginga N, Thies JE (eds) (2006) Biological approaches to sustainable soil systems. CRC Press, Boca RatonGoogle Scholar
  81. Uphoff N, Kassam A, Harwood R (2011) SRI as a methodology for raising crop and water productivity: productive adaptations in rice agronomy and irrigation water management. Paddy Water Environ 9:3–11Google Scholar
  82. Uphoff N, Chi F, Dazzo FB, Rodriguez RJ (2013) Soil fertility as a contingent rather than inherent characteristic: considering the contributions of crop–symbiotic soil biota. In: Lal R, Stewart B (eds) Principles of sustainable soil management in agroecosystems. Taylor & Francis, Boca Raton, pp 141–166Google Scholar
  83. Wang S, Cao W, Jiang D, Tai D, Zhu Y (2003) Effects of SRI technique on physiological characteristics and population development in rice. Chin J Rice Sci 17:31–36, in Chinese with English abstractGoogle Scholar
  84. Wu S (2007) The contrastive experiments under system for rice intensification. Inn Mong Agric Sci Technol 33:41–42, in Chinese with English abstractGoogle Scholar
  85. Wu W, Ma B (2015) Integrated nutrient management (INM) for sustaining crop productivity and reducing environmental impact: a review. Sci Total Environ 512:415–427PubMedGoogle Scholar
  86. Wu W, Nie L, Liao Y, Shah F, Cui K, Wang Q, Huang J (2013) Towards yield improvement of early season rice: other options under double rice–cropping system in central China. Eur J Agron 45:75–86Google Scholar
  87. Wu W, Huang J, Shah F, Uphoff N (2015). Evaluation of system of rice intensification methods applied in the double rice–cropping system in central China. Adv. Agron. 132. doi:  10.1016/bs.agron.2015.01.002
  88. Xiong H, Ran M, Xu F, Hong S (2000) Achievements and developments of ratooning rice in south of China. Acta Agron Sin 26:297–304, in Chinese with English abstractGoogle Scholar
  89. Xu F, Ma J, Wang H, Liu H, Huang Q, Ma W, Ming D (2003) The characteristics of roots and their relation to the formation of grain yield under the cultivation by system of rice intensification (SRI). Hybrid Rice 18:61–65, in Chinese with English abstractGoogle Scholar
  90. Xu F, Ma J, Wang H, Liu H, Huang Q, Ma W, Ming D (2005) Rice quality under the cultivation of SRI. Acta Agron Sin 31:577–582, in Chinese with English abstractGoogle Scholar
  91. Xu X, Li XY, Li H (2006) Socio–economic impact analysis of SRI in China. China Rural Econ. March, in Chinese; English version available at: http://sri.ciifad.cornell.edu/countries/china/cnciadeng.pdf
  92. Xu X, Liu Y, Shi Y, Laura P (2013) Discourse analysis of the plight of the extension of the new style modern agricultural technology—Take the extension of the system of rice intensification (SRI) in Y village, Sichuan province as an example. J China Agric Univ 1:1–8, in Chinese with English abstractGoogle Scholar
  93. Yan X, Akiyama H, Yagi K, Akimoto H (2009) Global estimations of the inventory and mitigation potential of methane emissions from rice cultivation conducted using the 2006 Intergovernmental Panel on Climate Change Guidelines. Global Biogeochem Cycles 23, GB2002. doi: 10.1029/2008GB003299 Google Scholar
  94. Yan G, Zheng X, Cui F, Yao Z, Zhou Z, Deng J, Xu Y (2013) Two–year simultaneous records of N2O and NO flues from a farmed cropland in the northern China plain with a reduced nitrogen addition rate by one–third. Agric Ecosyst Environ 178:39–50Google Scholar
  95. Yao F, Huang J, Cui K, Nie L, Xiang J, Liu X, Wu W, Chen M, Peng S (2012) Agronomic performance of high-yielding rice variety grown under alternate wetting and drying irrigation. Field Crops Res 126:16–22Google Scholar
  96. Yuan LP (2001) The system of rice intensification. Hybrid Rice 16:1–3, in Chinese with English abstractGoogle Scholar
  97. Yuan LP (2002) A scientist’s perspective on experiences with SRI in China for raising yields of super–hybrid rice. In: Uphoff N, Fernandes ECM, Yuan LP, Peng JM, Rafaralahy R, Rabandrasana J (eds) Assessments of the system of rice intensification (SRI): proceedings of an international conference, Sanya, China, April 1–4, 2002. CIIFAD, Ithaca, http://sri.ciifad.cornell.edu/proc1/sri_06.pdf Google Scholar
  98. Zhang WJ, Lu M (2010) Innovative rice–wheat cropping system for higher yield with lower emissions in China, based on concepts of SRI. Report for Institute of Crop Science, China Academy of Agricultural Sciences, Beijing. (http://sri.ciifad.cornell.edu/countries/china/ChinaSWRI_Zhang2010.pdf)
  99. Zhang F, Cui Z, Chen X, Ju X, Shen J, Chen Q, Liu X, Zhang W, Mi G, Fan M, Jiang R (2012) Integrated nutrient management for food security and environmental quality in China. Adv Agric 116:1–40Google Scholar
  100. Zhao L, Wu L, Li Y, Lu X, Zhu D, Uphoff N (2009a) Influence of the System of Rice Intensification on rice yield and nitrogen and water use efficiency with different N application rates. Exp Agric 45:275–286Google Scholar
  101. Zhao L, Wu L, Li Y, Wu M (2009b) Effects of the system of rice intensification on soil biological properties. Acta Pedologica Sin 46:321–325, in Chinese with English abstractGoogle Scholar
  102. Zhao L, Wu L, Li Y, Animesh S, Zhu D, Uphoff N (2010) Comparisons of yield, water use efficiency, and soil microbial biomass as affected by the System of Rice Intensification. Commun Soil Sci Plant Anal 41:1–12Google Scholar
  103. Zhao L, Wu L, Wu M, Li Y (2011) Nutrient uptake and water use efficiency as affected by modified rice cultivation methods with reduced irrigation. Paddy Water Environ 9:25–32Google Scholar
  104. Zheng JG, Lu XJ, Jiang XL, Li CD (2004) Testing modifications for the system of rice intensification (SRI) to achieve super–high yield in the Sichuan basin. Southwest China J Agric Sci 17:169–173, in Chinese with English abstractGoogle Scholar
  105. Zheng JG, Chi Z, Li X, Jiang X (2013) Agricultural water savings possible through SRI for water management in Sichuan, China. Taiwan Water Conserv 61:50–62, in English with Chinese abstractGoogle Scholar
  106. Zhu DF (2004) Development of system of rice intensification for rice production in China. Presentation at World Rice Research Congress, Tsukuba, Japan, Nov. 7. (http://www.slideshare.net/SRI.CORNELL/0429–development–of–system–of–rice–intensification–for–rice–production–in–china)
  107. Zhu DF (ed) (2006) The theory and practice of SRI. Chinese Press of Science and Technology for Agriculture, Beijing, in ChineseGoogle Scholar
  108. Zhu H, Chen H (2006) Research of ratooning rice and its prospects in Fujian province. Subtrop Agric Res 2:170–175, in Chinese with English abstractGoogle Scholar
  109. Zhu DF, Cheng SH, Zhang YP, Lin XQ (2002) Tillering patterns and the contribution of tillers to grain yield with hybrid rice and wide spacing. In: Uphoff N, Fernandes ECM, Yuan LP, Peng JM, Rafaralahy R, Rabenandrasana J (eds) Assessments of the system of rice intensification (SRI): proceedings of an international conference, Sanya, China, April 1–4, 2002. CIIFAD, Ithaca, pp 125–131, http://sri.ciifad.cornell.edu/proc1/sri_28.pdf Google Scholar
  110. Zhu Y, Xiong H, Xu F, Guo X, Zhang L (2011) Research on system of rice intensification (SRI) technology in China. Agric Sci Technol 12:1818–1825Google Scholar

Copyright information

© Crown Copyright as represented by Marc Savard 2015

Authors and Affiliations

  1. 1.College of AgronomyNorthwest A&F UniversityYanglingChina
  2. 2.Eastern Cereal and Oilseed Research CentreAgriculture and Agri–Food CanadaOttawaCanada
  3. 3.SRI International Network and Resources Center (SRI–Rice)Cornell UniversityIthacaUSA

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