Download or read book Swedish Journal of Agricultural Research written by and published by . This book was released on 1990 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Agriculture Horticulture written by and published by . This book was released on 1992 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Abstracts on Sustainable Agriculture written by and published by . This book was released on 1989 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Horticultural Abstracts written by and published by . This book was released on 1993 with total page 2034 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1991 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Properties and Management of Soils in the Tropics written by Pedro A. Sanchez and published by Cambridge University Press. This book was released on 2019-01-10 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Download or read book Weed Science A Plea for Thought Revisited written by Robert L. Zimdahl and published by Springer Science & Business Media. This book was released on 2011-09-26 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weed scientists are confident of increasing production through agricultural technology, including herbicides, but do not must ask if the moral obligation to feed people is sufficient justification for the benefits and harms achieved. A continuing, rigorous examination of the science’s goals that leads to appropriate change is advocated. Weed scientists have a research consensus - a paradigm - Weeds must be controlled. Herbicides are the best control technology. Agriculture's practitoners should discuss the necessity and risks of their technology. Discussion must include scientific evidence and value-laden arguments.
Download or read book Methods of Fertilizer Application written by Vasiliĭ Efimovich Bulaev and published by . This book was released on 1984 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvement of Yields of Common Beans Phaseolus Vulgaris L by Increased Nitrogen Fixation in Soils with Low Phosphorus Levels written by Irene Christiansen and published by . This book was released on 2001 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Legume Nitrogen Fixation in Soils with Low Phosphorus Availability written by Saad Sulieman and published by Springer. This book was released on 2017-06-10 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thoughtful and provocative book provides a concise, up-to-date presentation of how current and projected future phosphorus scarcity will affect legume growth and their symbiotic nitrogen-fixing capabilities. It is a timely examination of the physiological and molecular responses of nodules to phosphorous deficiency in attempt to identify common principles. Students and researchers in the many disciplines related to crop productivity will find this title an exciting contribution in the area of plant stress physiology. The knowledge in this volume can also aid plant breeders, particularly through new methods of genetic engineering, in developing unique and adaptive cultivars with higher symbiotic efficiency. The awareness of the rapidly rising world population must translate into a parallel increase in agricultural production in order to sustain the growing population both now and in the future. Hence, the demand for food crops to produce proteins and vegetable oil for human consumption is going to increase considerably during the coming years. The essential role of legumes in agriculture is well-recognized, given the abundant levels of proteins and oils found in plants along with their enormous contribution to the sustainability of agricultural systems and human health. The capacity of legumes to fix nitrogen (N2) in partnership with rhizobia provides an input-saving and resource-conserving alternative, thereby reducing the need for chemical fertilizers while enhancing overall crop productivity. The use of N2-fixing legumes to produce plant proteins results in a substantial decrease in the consumption of fossil fuels and therefore also in the agricultural effects to global warming. However, a major constraint to legume production is low soil phosphorus (P) availability, considering that an overwhelming majority of the world’s soils are classified as P-deficient. Low-P availability is especially problematic for legumes, since legume nodules responsible for N2 fixation have a high P requirement. Therefore, this book explains how nodule N2 fixation responds to low P availability, which is crucial for improving legume production and maintaining agricultural sustainability in the context of the global P crisis.
Download or read book Principles and Procedures of Statistics written by Robert George Douglas Steel and published by McGraw-Hill Companies. This book was released on 1960 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistics defined. Some history of statistics. Statistics and the scientific method. studying statistic; Probability. Sampling from a normal distribution. Comparisons involving two sample means. Principles of experimental design. Analysis of variance I: the one-way classification. Analysis of variance II: multiway classifications. Linear regression. Linear correlation. Analysis of variance III: Factorial experiments. Analysis of variance IV: split-plot designs and analysis. Analysis of variance V: unequal subsclass numbers. Multiple and partial regression and correlation. Analysis of covariance. Nonlinear regression. Some uses of chi-square. Enumeration data I: one-way classifications. Enumeration data II: contingency tables. Some discrete distributions. Nonparametric statistics. Sampling finite populations.
Download or read book Domestication Fertilization and Nodulation written by Gwendolyn Fry and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phaseolus vulgaris L. (Latin American common bean) is a leguminous crop that is significant in the life histories of both human civilization and nitrogen-fixing bacteria called rhizobia. These associations are evident from the impacts they have left on the genome of the common bean. As a legume, the common bean has several genes that code for the initiation and maintenance of mutualistic endosymbiosis with rhizobia. Over the course of its domestication and cultivation, the common bean has also undergone simultaneous artificial selection and multiple bottlenecks. As it exists in commercial agriculture, crops of common bean lack within-population genetic diversity and are widely considered poor at facilitating nitrogen fixation. Recent studies suggest nitrogen fertilization to be key in the decline of nodulation in cultivars of common bean. In addition, preliminary research suggests that wild lineages of bean have greater numbers of nodules. However, these data do not directly compare proxies of nitrogen fixation, like nodulation, with genotype and the presence of nitrogen fertilizer. I hypothesized that bean accession would be a more significant factor than nitrogen presence in determining the ability to facilitate nitrogen fixation. Through a randomized block greenhouse experiment that observed the variables of accession and nitrogen treatment, I found that both nitrogen fertilization and genotype were significant contributors to root:shoot ratio, nodule number, and chlorophyll content index (CCI) in common bean. However, bean genotype was more significant in determining ability to facilitate nitrogen fixation.
Download or read book The Effects of Planting Dates and Potassium Nitrogen Amendments on Growth Development and Yield of Dry Bean Phaseolus Vulgaris L Genotypes written by Tara P. Nepal and published by . This book was released on 1980 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book N Dynamics in and Under a Fixing Dry Bean Using p15 sN as Tracer written by Olaf Erik Martinson and published by . This book was released on 1993 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phaseolus Vulgaris written by Rocío Campos Vega and published by . This book was released on 2018 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Year of Pulses celebrated in 2016 magnified the public focus and consumer perception on human health, environmental aspects, crop production and novel product development benefits of pulses. The gluten-free and plant protein movements have also increased interest in pulse utilization. The common dry bean (Phaseolus vulgaris L.) among pulses is the most economically and widest ecologically adapted crop species used for food by large populations. Nowadays, dry beans top the list of pulse crops accounting on average for ~38 and 32% of global pulse growing area and production, respectively. Protein production from kidney beans requires about 18, 12, 10, 10 and 9 times less land, fertilizer, pesticide, water and fuel, respectively compared to producing the same amount of protein from beef.This book focuses on breeding aspects including new cultivars, production and post-harvest practices, and investigations that can lead to the development of high quality grain and functional foods, and nutraceutical products from beans. It also provides an overview of the crop management practices, technology progress and impacts favoring the best possible clean and sustainable crop production. Bean breeding is highlighted form the European perspective including the preservation/conservation of local gene pools. Bean production and quality improvement is a continuous process, particularly in major bean producing and consuming countries. The socioeconomic impact is considerable in countries where beans are traditionally part of the staple daily diet. However, application of novel technologies in improving nitrogen fixation, integrated disease management, and post-harvest storage ensures sustainable bean production and quality. The quality of bean types close to the site of its original domestication provides an outlook on their resilience and potential as a genetic resource and future food products. Current knowledge of bean health benefits, bioactive compounds, bioactive peptides and phenolics are important for development of novel functional foods. Beans can be used in many forms; as a natural coagulant, in metabolic disease prevention and other common bean-based food products, where their current market availability is explored. The multiple attributes of beans including cost, sustainability, commercial availability in varied forms and types ensure its extensive and expanding use in the development of healthy eating habits that can reduce healthcare and societal costs. This book should give plant scientists, nutritionists, health professionals, chemists and industry professionals interested in beans useful and up-to-date information to advance the field.
Download or read book Phaseolus Spp Bean Science written by R. K. Maiti and published by . This book was released on 1997 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Legume Nitrogen Fixation in a Changing Environment written by Saad Sulieman and published by Springer. This book was released on 2015-04-24 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world population will grow more rapidly during the few coming years. This must be accompanied by a parallel increase in the agricultural production to secure adequate food. Sustainability considerations mandate that alternatives to chemical nitrogen fertilizers must be urgently sought. Biological nitrogen (N2) fixation, a microbiological process which converts atmospheric N2 into a plant-usable form, offers this alternative. Among these renewable sources, N2-fixing legumes offer an economically attractive and ecologically sound means of reducing external inputs and improving internal resources. Environmental factors such as drought, elevated temperature, salinity, soil acidity and rising CO2 are known to dramatically affect the symbiotic process and thus play a part in determining the actual amount of nitrogen fixed by a given legume in the field. Understanding how nodule N2 fixation responds to the environment is crucial for improving legume production and maintaining sustainability in the context of global change. In this thoughtful and provocative new Brief, we provide critical information on how current and projected future changes in the environment will affect legume growth and their symbiotic N2 fixing capabilities. Each section reviews the main drivers of environmental change on the legume performance that include drought, elevated temperature, salinity and rising CO2, and soil acidity. Importantly we discuss the molecular approaches to the analysis of the stress response in legumes and the possible biotechnological strategies to overcome their detrimental effects.
