Alternate Wet Dry Irrigation In Rice Cultivation

Author : Wim van der Hoek,R. Sakthivadivel,Melanie Renshaw,John B. Silver,Martin H. Birley,Flemming Konradsen
Publisher : IWMI
Page : 39 pages
File Size : 49,6 Mb
Release : 2001
Category : Irrigation
ISBN : 9789290904182

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Alternate Wet/dry Irrigation in Rice Cultivation by Wim van der Hoek,R. Sakthivadivel,Melanie Renshaw,John B. Silver,Martin H. Birley,Flemming Konradsen Pdf

More irrigated land is devoted to rice than to any other crop. A method to save water in irrigated rice cultivation is the intermittent drying of the rice fields, known as alternate wet/dry irrigation (AWDI). This report reviews previous studies in AWDI, with a focus on mosquito vector control, water saving, and rice yields. Examples are provided from a number of countries.

Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 59 pages
File Size : 54,7 Mb
Release : 2007
Category : Rice
ISBN : 9789712202193

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Water Management in Irrigated Rice by B. A. M. Bouman Pdf

Author : S. K. Gupta,Megh R. Goyal
Publisher : CRC Press
Page : 454 pages
File Size : 54,8 Mb
Release : 2017-03-16
Category : Science
ISBN : 9781771884440

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Soil Salinity Management in Agriculture by S. K. Gupta,Megh R. Goyal Pdf

This important volume, Soil Salinity Management in Agriculture, addresses the crucial issue of soil salinity of potential farmland and provides a comprehensive picture of the saline environment and plant interactions, along with management and reclamation methods and policies. With contributions from researchers from the fields of agricultural chemistry, soil science, biotechnology, agronomy, environmental sciences, and plant breeding and genetics, the volume emphasizes a multidisciplinary approach.

Author : Tejendra Chapagain
Publisher : Unknown
Page : 0 pages
File Size : 40,5 Mb
Release : 2017
Category : Agricultural intensification
ISBN : 1536126195

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The System of Rice Intensification and Conventional Rice Farming by Tejendra Chapagain Pdf

The System of Rice Intensification (SRI) involves the adoption of certain changes in management practices for rice cultivation that create a better growing environment for rice crops. The use of intermittent irrigation with alternate wet and dry intervals (AWD) and single transplanting of the younger seedlings in wider spacing areas are regarded as the key factors in SRI for better crop growth and productivity. Field experiments were conducted in Chiba, Japan during the two consecutive rice growing seasons (May-September) of 2008-09 to observe the effects of SRI components on rice crop performance, field environment, water savings, and water-wise rice production. The effects of the irrigation method, age of seedlings and spacing were evaluated in the 2008 rice season with eight treatment combinations in a split-split plot design (S-SPD). AWDI at 10 day intervals and continuous flooding throughout the cropping season were the two main plot factors while the effects of seedling age (14 and 21 days) and plant spacing (30x30 cm2 and 30x18 cm2) were evaluated as sub and sub-sub plot factors, respectively. The experimental results revealed that the SRI management with the proposed AWDI can save a significant amount of irrigation water (29%) without reduced grain yield (7.41t/h compared with 7.37t/ha from normal planting with ordinary water management). Water productivity was also observed to be significantly higher in all combinations of practices in AWDI plots: 1.74 g/liter with SRI management and AWDI as compared to 1.23 g/liter in normal planting with ordinary water management. In addition, the research outcomes showed a role of AWDI in minimizing pest and disease incidence, shortening the rice crop cycle and also improving the plant stand until harvest. Synergistic effects of younger seedlings and wider spacing were seen in tillering ability, panicle length and a number of filled grains that ultimately led to higher productivity with better grain quality. Field experiments with the complete sets of SRI practices were carried out in Randomized Complete Block Design (RCBD) during the 2009 rice growing season in the same field. SRI (with 8 day old seedlings) and conventional (with 22 day old seedlings) practices were the first factor (cultivation method), while organic and inorganic managements were evaluated as the second factor (management method) in the field experiments. The highest yield was observed through the conventional method with inorganic management (6.84t/h) that was on par with the organic SRI (6.59t/h) followed by organic conventional (6.48t/h). It was recorded as 5.92t/h in inorganic SRI management. Overall, the effects of SRI components were positive and significant on a per plant basis; however, they did not differ significantly in terms of grain yield per unit area. The development of healthy and vigorous roots, increased stem diameter, greater productive leaf area, longer panicles, greater number of filled grains, development of plants tolerant to insect-pest and disease, and reduced plant lodging percentage were some notable achievements with SRI management. Water savings and water-wise rice production are other important issues that are likely to draw the attention of rice researchers and farm communities to adopt SRI under scarce water conditions. However, comparatively better grain yields with conventional management methods underscore a need for further investigations in defining an appropriate combination of practices for SRI management, considering local soil properties, prevailing climate and critical watering stages in rice crop management.

Author : Rob Cramb
Publisher : Springer Nature
Page : 462 pages
File Size : 50,7 Mb
Release : 2020-01-03
Category : Business & Economics
ISBN : 9789811509988

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White Gold: The Commercialisation of Rice Farming in the Lower Mekong Basin by Rob Cramb Pdf

This open access book is about understanding the processes involved in the transformation of smallholder rice farming in the Lower Mekong Basin from a low-yielding subsistence activity to one producing the surpluses needed for national self-sufficiency and a high-value export industry. For centuries, farmers in the Basin have regarded rice as “white gold”, reflecting its centrality to their food security and well-being. In the past four decades, rice has also become a commercial crop of great importance to Mekong farmers, augmenting but not replacing its role in securing their subsistence. This book is based on collaborative research to (a) compare the current situation and trajectories of rice farmers within and between different regions of the Lower Mekong, (b) explore the value chains linking rice farmers with new technologies and input and output markets within and across national borders, and (c) understand the changing role of government policies in facilitating the on-going evolution of commercial rice farming. An introductory section places the research in geographical and historical context. Four major sections deal in turn with studies of rice farming, value chains, and policies in Northeast Thailand, Central Laos, Southeastern Cambodia, and the Mekong Delta. The final section examines the implications for rice policy in the region as a whole.

Author : B. A. M. Bouman
Publisher : Int. Rice Res. Inst.
Page : 352 pages
File Size : 48,8 Mb
Release : 2002
Category : Rice
ISBN : 9789712201820

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Water-wise Rice Production by B. A. M. Bouman Pdf

Author : Norman Manea
Publisher : Yale University Press
Page : 401 pages
File Size : 52,8 Mb
Release : 2013-10-22
Category : Biography & Autobiography
ISBN : 9780300206326

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The Hooligan's Return by Norman Manea Pdf

Romanian exile Norman Manea’s internationally acclaimed memoir/novel, now available to English-language readers At the center of The Hooligan’s Return is the author himself, always an outcast, on a bleak lifelong journey through Nazism and communism to exile in America. But while Norman Manea’s book is in many ways a memoir, it is also a deeply imaginative work, traversing time and place, life and literature, dream and reality, past and present. Autobiographical events merge with historic elements, always connecting the individual with the collective destiny. Manea speaks of the bloodiest time of the twentieth century and of the emergence afterward of a global, competitive, and sometimes cynical modern society. Both a harrowing memoir and an ambitious epic project, The Hooligan’s Return achieves a subtle internal harmony as anxiety evolves into a delicate irony and a burlesque fantasy. Beautifully written and brilliantly conceived, this is the work of a writer with an acute understanding of the vast human potential for both evil and kindness, obedience and integrity.

Author : Y. H. Li,T. P. Tuong
Publisher : IWMI
Page : 133 pages
File Size : 52,7 Mb
Release : 2001
Category : Irrigation efficency
ISBN : 9789290904656

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Water-saving Irrigation for Rice by Y. H. Li,T. P. Tuong Pdf

Contributed papers presented at the workshop.

Author : Robert Flint Chandler
Publisher : Int. Rice Res. Inst.
Page : 278 pages
File Size : 45,6 Mb
Release : 1979
Category : Political Science
ISBN : 9780891583622

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Rice in the Tropics by Robert Flint Chandler Pdf

The importance of rive as a world crops, and its principal characteristics. The modern rice plant and the new technology: Greater potentials for rice production in the tropics. Problems of postharvest technology. Rice marketing. Some successful rice production programs. Promising rice research. Elements of a successful accelerated rice production program. A national rice program: putting the ingredients together.

Author : Udaya Sekhar Nagothu
Publisher : Routledge
Page : 339 pages
File Size : 51,9 Mb
Release : 2016-07-15
Category : Technology & Engineering
ISBN : 9781317413691

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Climate Change and Agricultural Development by Udaya Sekhar Nagothu Pdf

Two of the greatest current challenges are climate change (and variability) and food security. Feeding nine billion people by 2050 will require major efforts aimed at climate change adaptation and mitigation. One approach to agriculture has recently been captured by the widely adopted term of "Climate Smart Agriculture" (CSA). This book not only explains what this entails, but also presents practical on-the-ground studies of practices and innovations in agriculture across a broader spectrum, including agroecology and conservation agriculture, in less developed countries. It is shown that CSA is not a completely new science and a number of its recommended technologies have been used for some time by local farmers all over the world. What is relevant and new is ‘the approach’ to exploit their adaptation and mitigation potential. However, a major limitation is the lack of evidence-based knowledge that is necessary for policy makers to prepare strategies for adaptation and mitigation. This book assembles knowledge of CSA, agroecology and conservation agriculture, and perspectives from different regions of the world, to build resilient food systems. The first part analyzes the concept, opportunities and challenges, and provides a global perspective, drawing particularly on studies from Africa and Asia. The second part of the book showcases results from various studies linked to soil, water and crop management measures from an ongoing program in India as well as experiences from other regions. The third section assesses the needs for an enabling policy environment, mainstreaming gender and sime final recommendations for up-scaling and/or out-scaling innovations.

Author : Surajit K. De Datta
Publisher : Int. Rice Res. Inst.
Page : 642 pages
File Size : 48,9 Mb
Release : 1981
Category : Rice
ISBN : 9780471097600

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Principles and Practices of Rice Production by Surajit K. De Datta Pdf

Author : Food and Agriculture Organization of the United Nations,Yezin Agricultural University
Publisher : Food & Agriculture Org.
Page : 172 pages
File Size : 51,8 Mb
Release : 2021-05-20
Category : Science
ISBN : 9789251343029

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Proceedings of the National Workshop on Green Ecology in Myanmar by Food and Agriculture Organization of the United Nations,Yezin Agricultural University Pdf

The “Sustainable Cropland and Forest Management in Priority Agro-ecosystems of Myanmar” Project of FAO in Myanmar is a five-year project (2016-2021) funded by Global Environment Facility (GEF) and being jointly coordinated and implemented by the Ministry of Natural Resources and Environmental Conservation (MoNREC) and the Ministry of Agriculture, Livestock, and Irrigation (MoALI). The project has supported establishment of a National CSA at Yezin Agriculture University in Myanmar. One of the key activities of the National CSA Center is to organize annual workshop/conference to share ideas, opportunities, and challenges with regards to CSA and SLM and to discuss on the way forwards. Such workshops will focus on different themes of CSA and SLM every year. Accordingly, the second workshop was organized by the CSA Center at YAU on 29th August 2019 and the theme of this workshop was “Green Ecology in Myanmar”. This proceeding presents the background of the project and workshop and compiles all the papers presented during the workshop.

Author : Bhagirath S. Chauhan,Khawar Jabran,Gulshan Mahajan
Publisher : Springer
Page : 563 pages
File Size : 48,6 Mb
Release : 2017-02-16
Category : Science
ISBN : 9783319475165

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Rice Production Worldwide by Bhagirath S. Chauhan,Khawar Jabran,Gulshan Mahajan Pdf

This book addresses aspects of rice production in rice-growing areas of the world including origin, history, role in global food security, cropping systems, management practices, production systems, cultivars, as well as fertilizer and pest management. As one of the three most important grain crops that helps to fulfill food needs all across the globe, rice plays a key role in the current and future food security of the world. Currently, no book covers all aspects of rice production in the rice-growing areas of world. This book fills that gap by highlighting the diverse production and management practices as well as the various rice genotypes in the salient, rice-producing areas in Asia, Europe, Africa, the Americas, and Australia. Further, this text highlights harvesting, threshing, processing, yields and rice products and future research needs. Supplemented with illustrations and tables, this text is essential for students taking courses in agronomy and production systems as well as for agricultural advisers, county agents, extension specialists, and professionals throughout the industry.

Author : Andrew A. Meharg,Fang-Jie Zhao
Publisher : Springer Science & Business Media
Page : 180 pages
File Size : 43,9 Mb
Release : 2012-03-01
Category : Technology & Engineering
ISBN : 9789400729469

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Arsenic & Rice by Andrew A. Meharg,Fang-Jie Zhao Pdf

Rice is the staple food for half of the world’s population. Consumption of rice is the major exposure route globally to the class one, non-threshold carcinogen inorganic arsenic. This book explains the sources of arsenic to paddy soils and the biogeochemical processes and plant physiological attributes of paddy soil-rice ecosystems that lead to high concentrations of arsenic in rice grain. It presents the global pattern of arsenic concentration and speciation in rice, discusses human exposures to inorganic arsenic from rice and the resulting health risks. It also highlights particular populations that have the highest rice consumptions, which include Southern and South East Asians, weaning babies, gluten intolerance sufferers and those consuming rice milk. The book also presents the information of arsenic concentration and speciation in other major crops and outlines approaches for lowering arsenic in rice grain and in the human diet through agronomic management.

Author : J. Maclean,B. Hardy,G. Hettel
Publisher : IRRI
Page : 298 pages
File Size : 44,5 Mb
Release : 2013-12-01
Category : Rice
ISBN : 9789712203008

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Rice Almanac, 4th edition by J. Maclean,B. Hardy,G. Hettel Pdf

This fourth edition of the Rice Almanac continues the tradition of the first three editions by showcasing rice as the most important staple food in the world and all that is involved in maintaining rice production. It also breaks new ground in its coverage of issues related to rice production, both environmental--including climate change--and its importance for food security and the global economy. It also further expands coverage of the world’s rice production area by featuring 80 rice-producing countries around the world.