Download or read book Fertilizer Quality and its Impacts on Technical Efficiency and Use Intensity in the North China Plain written by Ling Yee Khor and published by Cuvillier Verlag. This book was released on 2014-11-19 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fertilizer has helped the growth of agriculture for decades. However, its overuse in some regions has caused environmental and health problems due to pollution and contamination of groundwater. Fertilizer quality is another cause for concern in many countries, as the actual nutrient content may not match the labeled content on the packaging. The North China Plain is a region affected by both fertilizer overuse and quality problems. This study delves into the issue using economic models and survey data of farm households. Is the effectiveness of fertilizer overstated? How do farmers respond to uncertainty in fertilizer quality? Can they differentiate between good and poor quality fertilizer?
Download or read book Fertilizer Quality and Its Impacts on Technical Efficiency and Use Intensity in the North China Plain Presented by Ling Yee Khor written by Ling Yee Khor and published by . This book was released on 2013 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Realization of Ecological Product Value Land Use Change and Environment written by Hualin Xie and published by Frontiers Media SA. This book was released on 2024-04-15 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Establishing the mechanism of realizing the value of ecological product is an important way to realize land use change, agricultural production transformation and reduce environmental pollution. In recent years, consumers' demand for ecological products has been increasing while the supply is seriously insufficient. The realization of ecological product value faces various bottlenecks, including the realization mechanism of ecological product value, land use variation and the temporal dynamics of land use change, and the driving forces behind land dynamics and their socio-ecological feedbacks. Meanwhile, the relationship between the realization of ecological product value, land use transformation and changes in agricultural production mode are still unclear. In the process of realizing the value of ecological products, how to realize agricultural production and land use transformation, and environmental improvement is also a constant concern to be solved desperately.
Download or read book Environmental and Economic Impacts of Chemical Fertilizer Use written by Jane Elizabeth Powell and published by . This book was released on 2018 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1960’s China’s agricultural system has gone through drastic changes. Modernization of this system necessitated adoption of key innovations, including new seed varieties, farm management practices, and the use of chemical fertilizers and pesticides. This thesis examines the impacts of three major transformations of China’s agricultural economy, including the Socialist Period, the Green Revolution, and the Reform Period. A production function was used to estimate the effect of different agricultural inputs, regions, and decades for China’s provincial grain production, including wheat, maize, and rice. The ordinary least squared estimates demonstrate the changes in China’s agricultural system in this period. The North China Plain’s (NCP) agricultural system was used as a case study, and demonstrated the changes in intensity of grain production from 1960-2016. Increasing chemical fertilizer use was found to be the most important change in China’s agricultural inputs, as changes in other inputs such as land, labor, and agricultural machinery were constrained. Chemical fertilizer use was found to be more effective for grain production in the NCP compared to other provinces. However, high or poorly balanced chemical fertilizer applications in this region has important environmental health consequences. This fertilizer intensive production is reinforced by Chinese farmers’ needs for ensured income and management practices introduced during the Green Revolution. China’s environmental policy has had limited success in addressing these problems.
Download or read book Groundwater Management for Sustainable Agriculture in the North China Plain written by Yanjun Shen and published by CRC Press. This book was released on 2024-09-03 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a unique text that explores recent research on the management of sustainable groundwater use in the North China Plain (NCP), where aquifers are suffering the most severe over‐pumping in the world and have caused serious ecological degradation. It contains research conducted by the editor and his teams on several projects over the past 18 years. Key topics covered include: comprehensive scheme and pathways to achieve sustainable groundwater management description of theoretical basis for water saving and technologies developed in practice at field scale adjusting cropping patterns and planting structure to reduce the cultivation intensity to a suitable extent soft measures such as water metering, pricing, and water marketing being applied in groundwater management practice in the NCP It will be an invaluable resource to graduate students, education and research staff, and agriculture or water resources authorities.
Download or read book Maximizing the Efficiency of Fertilizer Use by Grain Crops written by Food and Agriculture Organization of the United Nations. Fertilizer and Plant Nutrition Service and published by Food & Agriculture Org.. This book was released on 1980 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Agronomy written by and published by Academic Press. This book was released on 2019-05-23 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Agronomy, Volume 156, continues to be recognized as a leading reference and first-rate source for the latest research in agronomy. Each volume contains an eclectic group of reviews by leading scientists throughout the world. As always, the subjects covered are rich, varied, and exemplary of the abundant subject matter addressed by this long-running serial. - Includes numerous, timely, state-of-the-art reviews on the latest advancements in agronomy - Features distinguished, well recognized authors from around the world - Builds upon this venerable and iconic review series - Covers the extensive variety and breadth of subject matter in the crop and soil sciences
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1987-10 with total page 1238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maximizing Fertilizer Use Efficiency written by Food and Agriculture Organization of the United Nations and published by Bernan Press(PA). This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Prices of Fertilizers written by H. L. Trumbull and published by . This book was released on 1919 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrogen in Soils of China written by Zhu Zhao-liang and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of soil nitrogen has long been an active field, but it was generally pivoted on agricultural and forestry production, and animal husbandry. With the rapid increase in the use of fertilizer nitrogen, more attention has been paid to the rela tionship between nitrogen management and environmental quality and human of soil nitrogen has become more comprehensive with health. In addition, the study the development of related sciences. The quantitative study of the processes in nitrogen cycling and their interrelationships has been an important part of this project and has attracted the attention of scientists allover the world. Nitrogen is one of the most important nutrients for plant growth and the applica tion of fertilizer nitrogen is playing an important role in agricultural production. The annual consumption of fertilizer nitrogen in the world has reached 70 million tons, and China has an annual consumption of more than 15 million tons and is the largest fertilizer nitrogen consumer in the world. However, the efficiency of nitro gen fertilizer is low and losses are large. It is estimated that nitrogen losses from agriculture in our country can be as high as 40-60% of the nitrogen applied. Some of the lost nitrogen enters the atmosphere and contributes to the greenhouse effect and some enters water bodies to pollute the water.
Download or read book Efficient Fertilizer Use in Summer Rainfed Areas written by Rajat De and published by Food & Agriculture Org.. This book was released on 1988 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resources Use Efficiency in Agriculture written by Sandeep Kumar and published by Springer Nature. This book was released on 2020-09-18 with total page 762 pages. Available in PDF, EPUB and Kindle. Book excerpt: Achieving zero hunger and food security is a top priority in the United Nations Development Goals (UNDGs). In an era characterized by high population growth and increasing pressure on agricultural systems, efficiency in the use of natural resources has become central to sustainable agricultural practices. Fundamentally speaking, eco-efficiency is about maximizing agricultural outputs, in terms of quantity and quality, using less land, water, nutrients, energy, labor, or capital. The concept of eco-efficiency involves both the ecological and economic aspects of sustainable agriculture. It is therefore essential to understand the interaction of ecosystem constituents within the extensive agricultural landscape, as well as farmers’ economic needs. This book examines the latest eco-efficient practices used in agro-systems. Drawing upon research and examples from around the world, it offers an up-to-date overview, together with insights into directly applicable approaches for poly-cropping systems and landscape-scale management to improve the stability of agricultural production systems, helping achieve food security. The book will be of interest to educators, researchers, climate change scientists, capacity builders and policymakers alike. It can also be used as additional reading material for undergraduate and graduate courses on agriculture, forestry, soil science, and the environmental sciences.
Download or read book Bulletin of the Atomic Scientists written by and published by . This book was released on 1973-10 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bulletin of the Atomic Scientists is the premier public resource on scientific and technological developments that impact global security. Founded by Manhattan Project Scientists, the Bulletin's iconic "Doomsday Clock" stimulates solutions for a safer world.
Download or read book OECD Review of Agricultural Policies China 2005 written by OECD and published by OECD Publishing. This book was released on 2005-11-14 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive overview and assessment of China's agricultural policies combined with OECD estimates of the level of support provided to the Chinese farm sector.
Download or read book Global Degradation of Soil and Water Resources written by Rui Li and published by Springer Nature. This book was released on 2022-01-29 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on soil and water conservation at global scale. It is a serious environmental problem that will threaten the socio-economic well-being of the majority of global population in future. The book examines the current situation of land degradation in multiple regions of the world and offers alternative approaches to solve the problems through sharing advanced technologies and lessons learned. It provides comprehensive assessment on characteristics, level and effect of degradation in different regions. It’s a highly informative reference both for researchers and graduate students.
Download or read book Fertilizer Practices and Efficiency of Use written by Council for Agricultural Science and Technology and published by . This book was released on 1975 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
