Download or read book Weed Control Competitive Cultivars and the System of Rice Intensification SRI written by Van Ryan Haden and published by . This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Weed Control Methods on Rice Cultivars Under Sri Practices written by Sharad Pandey and published by LAP Lambert Academic Publishing. This book was released on 2012-08 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The System of Rice Intensification(SRI) is an agro-ecological methodology for increasing the productivity of irrigated rice by changing the management of plants, soil, water and nutrients. Weed infestation is regarded as one of the major causes of low crop yields throughout the world and can cause 50-60% reduction in grain yield under puddled conditions and 91% yield reduction in non-puddled conditions. The issue of weeding is always important because it entails costs as well as benefit. The higher amount of labour for weeding is one of the most criticized aspects of SRI. Viewing these facts, a field experiment was conducted at a farmer's field at Shivanagar-3, Chitwan, Nepal during the rainy season of 2008 A.D. The study recommends to use the variety Ram and follow three soil-aerating weedings as weed control practice for rice cultivation along with the other elements for crop management under SRI where there are assured facilities for irrigation and drainage. The findings of this study should be useful to farmers, researchers, development workers, policy makers or anyone who may consider the optimum, efficient and effective use of limited inputs for producing higher yield.
Download or read book A Handbook for Weed Control in Rice written by Kwesi Ampong-Nyarko and published by Int. Rice Res. Inst.. This book was released on 1991 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significance of weeds in rice farming; Rice weeds of world importance; Weed control; Principles of herbicide use; Principal rice herbicides; Weed control in irrigated rice; Weed control in rainfed lowland rice; Weed control in upland rice; Weed control in deepwater and floating rice; Management of some difficult weeds.
Download or read book Weed Management in Rice written by Bruce Archibald Auld and published by Food & Agriculture Org.. This book was released on 1996 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Conference on Weed Control in Rice 31 August 4 September 1981 written by and published by Int. Rice Res. Inst.. This book was released on 1983 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolution of rice weed control practices and research: world perspective; Weeds of major economic importance in rice and yield lasses due to weed competition; Weed control practices as a component of rice production systems; Effects of hydrology, soil moisture regime, and fertility management on weed populations and their control in rice; Effects of stand establishment techniques on weed population in rice; The role of cropping systems on weeds in rice; Weed control technology in irrigated rice; Weed control technology in rainfed wetland rice; Importance rice weeds in Latin America; Weed control and rice production in Brazil.
Download or read book Competitive Ability of Rice Cultivars in the Era of Weed Resistance written by Fábio Schreiber and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost all plants are negatively affected by neighboring plants, which impose some degree of competition within the population, depending mainly on the quantity and quality of natural resources available in the environment. In rice cultivation, the occurrence of a high and diverse infestation of weeds results in high competition levels among the species. In addition, the high and growing number of cases about herbicide-resistant weeds, especially the widespread distribution of Imidazolinone-resistant weedy-rice and the high infestation of weeds belonging to the Echinochloa genus, has increased the competition levels within rice cultivation due to the lack of control. Therefore, the inclusion of rice cultivars with greater competitive ability represents a promising tool for weed management, since new cases of resistance to herbicides are often reported and alternative control strategies are scarce. The use of rice cultivars with a greater ability to suppress weeds can alleviate the competitive effect of these species, giving priority to the crop for the use of environmental resources due to the faster occupation of the ecological niches. Thus, this chapter aims to explore the competitive ability of rice cultivars against troublesome weed species, accounting for the role of their morphological and physiological traits as a function of environment-friendly crop practices.
Download or read book System of Rice Intensification SRI written by Umar Mohammed and published by . This book was released on 2016-12-30 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The System of Rice Intensification written by Norman Uphoff and published by Createspace Independent Publishing Platform. This book was released on 2015-12-12 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The System of Rice Intensification, known as SRI, is a management strategy for crop improvement. Its ideas, insights and practices are based on scientifically validated knowledge for increasing the production of not only irrigated rice but of other crops as well. SRI represents a paradigm shift in agricultural thinking and practice toward agroecological farming that can be used by even the poorest smallholding farmers in ecologically fragile regions of the world to achieve food security in the face of the climate-change challenges ahead. When the author Norman Uphoff first learned about SRI in Madagascar in 1993, this production system which offered higher yields with reduced inputs seemed implausible to him. But the professor put aside his skepticism after seeing farmers who had been getting rice yields of just two tons per hectare produce four times more rice-for three years in a row-on their very poor soils, not changing their varieties or relying on agrochemical inputs, and using less water. Now, he's helping to disseminate this dramatically effective methodology with this accessible, easy-to-use sourcebook. It offers explanations, research references, vivid pictures, and concrete examples of the award-winning SRI methodology to anyone interested in the development of practicable sustainable food systems. Now, he's helping to disseminate this revolutionary methodology with this accessible, easy-to-use primer. It offers explanations, resources, and concrete examples of the award-winning SRI to anyone interested in the development of practicable sustainable food systems.
Download or read book Weed Science and Weed Management in Rice and Cereal Based Cropping Systems 2 Volumes written by Aurora M. Baltazar and published by John Wiley & Sons. This book was released on 2023-03-29 with total page 1145 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents discussions on: Biology and ecology of major troublesome weeds infesting rice, wheat, corn, soybean, focusing on different cropping patterns in both tropical and temperate cropping systems and science-based weed management practices involving chemical, non-chemical, biological, integrated methods. Herbicides used, with their most recent classification, identification of new target sites, mechanisms and modes of action and how and why weeds evolve resistance to herbicides. New concepts, new paradigms and new technologies to manage evolution of resistance to herbicides including weed genomics, bioherbicides and allelochemicals. Highly recommended for students, teachers, researchers, agronomists, horticulturists, crop physiologists, and crop protection specialists in tropical and temperate agricultural systems, particularly in areas where major tropical weeds are posing potential threats to temperate agricultural systems.
Download or read book The System of Crop Intensification written by Norman Uphoff and published by . This book was released on 2016-01-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication reports on current work in progress to raise the agricultural productivity of a wide range of crops, in eco-friendly ways and in a number of countries around the world, using an agroecological methodology called the System of Crop Intensification (SCI). Through a shift in plant management, SCI allows farmers to increase their production while simultaneously reducing purchased inputs, building soil health, reducing water use, and making plants more resilient to climate change-induced stress.
Download or read book Agronomic Rice Practices and Postharvest Processing written by Deepak Kumar Verma and published by CRC Press. This book was released on 2018-12-07 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses three important agricultural aspects of rice: physical characteristics, physico-chemical characteristics, and the organoleptic aspects. Divided into sections, the book first examines recent trends and advances for higher production and quality improvement, focusing on the effects of climate on rice cultivation and climate-resilient agricultural practices in rice. The volume goes on to cover nutrient management for rice production and quality improvement. Chapters also address weed management and postharvest processing practices for improved rice production. With chapters from renowned scientists, researchers, and professors, this book will be a useful reference for rice researchers working in the area of agronomic practices, postharvest processing, and quality improvement in rice.
Download or read book Herbicides in Asian Rice written by Rosamond Naylor and published by Int. Rice Res. Inst.. This book was released on 1996 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overview; Impacts of herbicides; Integrated weed management; Use of herbicides in asian rice.
Download or read book Ecologically Based Weed Management written by Nicholas E. Korres and published by John Wiley & Sons. This book was released on 2023-12-06 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecologically Based Weed Management Protect crop yields and strengthen ecosystems with this essential guide Research into weed management is an increasingly critical component of both environmental stewardship and food production. The potential cost of weed propagation can be measured in crop yield reductions, under-nourished populations, stymied economies, and more. The propagation of herbicide-resistant weed populations means that purely chemical weed management is no longer viable; food production can now be secured only with an ecological approach to weed control. Ecologically Based Weed Management details such approaches and their potential to manage weeds across a range of agricultural and environmental contexts. It emphasizes the deployment of ecological principles to prevent weed infestations, reduce crop losses, and strengthen ecosystems. In a time when growing population and changing climates are placing enormous pressure on global food production, this approach to weed management has never been more vital. Ecologically Based Weed Management readers will also find: A global team of expert contributors to a multidisciplinary approach Detailed discussion of topics like herbicide limitation, integrated weed management, and more Insights pertinent to agriculture, academia, government, industry, and more Ecologically Based Weed Management is ideal for researchers in agriculture chemistry, weed science, agronomy, ecology, and related fields, as well as for regulators and advanced students.
Download or read book Weed Management in Direct seeded Rice Systems written by Bhagirath Singh Chauhan and published by Int. Rice Res. Inst.. This book was released on 2012 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Weed Control in U S Rice Production written by Roy Jefferson Smith and published by . This book was released on 1977 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sustainable Intensification written by Jules N. Pretty and published by Routledge. This book was released on 2012-06-25 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continued population growth, rapidly changing consumption patterns and the impacts of climate change and environmental degradation are driving limited resources of food, energy, water and materials towards critical thresholds worldwide. These pressures are likely to be substantial across Africa, where countries will have to find innovative ways to boost crop and livestock production to avoid becoming more reliant on imports and food aid. Sustainable agricultural intensification - producing more output from the same area of land while reducing the negative environmental impacts - represents a solution for millions of African farmers. This volume presents the lessons learned from 40 sustainable agricultural intensification programmes in 20 countries across Africa, commissioned as part of the UK Government's Foresight project. Through detailed case studies, the authors of each chapter examine how to develop productive and sustainable agricultural systems and how to scale up these systems to reach many more millions of people in the future. Themes covered include crop improvements, agroforestry and soil conservation, conservation agriculture, integrated pest management, horticulture, livestock and fodder crops, aquaculture, and novel policies and partnerships.
Download or read book Biological Approaches to Sustainable Soil Systems written by Norman Uphoff and published by CRC Press. This book was released on 2006-03-03 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global agriculture is now at the crossroads. The Green Revolution of the last century is losing momentum. Rates of growth in food production are now declining, with land and water resources becoming scarcer, while world population continues to grow. We need to continue to identify and share the knowledge that will support successful and sustainable
