Download or read book Sulfur Cycling Retention and Mobility in Soils written by Pamela J. Edwards and published by . This book was released on 1998 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur Cycling Retention and Mobility in Soils written by Pamela J. Edwards and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SULFUR CYCLING RETENTION AND MOBILITY IN SOILS A REVIEW GENERAL TECHNICAL REPORT NE 250 U S DEPARTMENT OF AGRICULTURE written by United States. Forest Service and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur in the Environment written by Maynard and published by CRC Press. This book was released on 1998-03-19 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the latest research on sulfur in temperate agricultural and forest ecosystems-integrating experimental findings with models of spatial scales from the cellular to the landscape level. Provides a general overview of sulfur in terrestrial ecosystems.
Download or read book Crop Production and Global Environmental Issues written by Khalid Rehman Hakeem and published by Springer. This book was released on 2015-12-08 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meeting the world’s food security challenge will require a multi-national, collaborative effort to integrate the best research from science, engineering and socioeconomics so that technological advances can bring benefits where they are most needed. The present book covers the effect of major environmental problems on crop production and how to cope with these issues for sustainable agriculture and improvements of crops. The world’s population is predicted to hit 9.6 Billion by 2050, up from today’s total of nearly 7.3 Billion, and with it food demand is predicted to increase substantially. The post-war ‘second agricultural revolution’ in developed countries, and the ‘green revolution’ in developing nations in the mid- 1960s converted agricultural practices and elevated crop yields spectacularly, but the outcome is levelling off and will not meet projected demand. Simultaneously, crop production is affected by many other factors, including industrial pollution, overuse of fertilizers and insecticides, heavy metal and radiation stresses etc. It has been noted that many pests are becoming resistant to insecticides. Estimates vary, but around 25% of crops can be lost to pests and diseases. Climate change associated with agriculture is also a global issue. Agriculture is a significant contributor to greenhouse gases and is estimated to account for 10-12% of total greenhouse gas (GHG) emissions. Many of the issues highlighted are global problems and are addressed thoroug hly in this work.
Download or read book Microbiome and Plant Nutrition written by Kambaska Kumar Behera and published by CRC Press. This book was released on 2024-10-31 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book titled “Microbiome and Plant Nutrition꞉ A Roadmap Towards Sustainable Agriculture” is expected to direct many emerging research pathways needed at local and global levels for sustainable agricultural package and practices. This volume incorporates thirteen seminal chapters on issue based research and their practical applications covering latest information and progress in different areas of microbial supplemented crop nutrition for sustainable agriculture. The book highlights the frontier issues and applications of plant‐microbe interaction in crop nutritional strategy with topics like System biology of plant microbe interaction, Plant growth‐promoting rhizobacteria꞉ a context for sustainable agriculture, Plant growth‐promoting endophytes꞉ a context for sustainable agriculture, The role of the mycorrhiza in nutrient uptake, Plant nitrogen, phosphorus and sulphur nutrition꞉ a microbial perspective, Carbon and nitrogen turnover in soils and plant rhizo‐deposition, Root exudates꞉ a link to plant‐microbe nutritional interactions and insight into the metabolic and nutrition network pathway of plant‐microbe interaction, Commercialization perspective of bio‐stimulants for sustainable agriculture, Interconnection of plants with microbiomes in changing climate꞉ a functional extension of the host and heavy metal dynamics in rice soil꞉ an alleviation through microbial intervention approach. This book will be very useful for the scholars, biotechnologists, agricultural scientists, plant nutritionists, researchers, teachers and students in the emerging field of soil‐microbiome and plant nutrition dynamics in the resilient climatic agriculture era.
Download or read book General Technical Report NE written by and published by . This book was released on 1980 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Fertility Management in Agroecosystems written by Amitava Chatterjee and published by John Wiley & Sons. This book was released on 2020-05-19 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Soil Fertility Management in Agroecosystems, Editors Amitava Chatterjee and David Clay provide a thoughtful survey of important concepts in soil fertility management. For the requirements of our future workforce, it is imperative that we evolve our understanding of soil fertility. Agronomists and soil scientists are increasingly challenged by extreme climatic conditions. Farmers are experimenting with integrating cover crops into rotations and reducing the use of chemical fertilizers. In other words, there is no such a thing as a simple fertilizer recommendation in today's agriculture. Topics covered include crop-specific nutrient management, program assessment, crop models for decision making, optimization of fertilizer use, cover crops, reducing nitrous oxide emissions, natural abundance techniques, tile-drained conditions, and soil biological fertility.
Download or read book Soil Organic Carbon and Feeding the Future written by Rattan Lal and published by CRC Press. This book was released on 2022-01-18 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil organic matter (SOM) is a highly reactive constituent of the soil matrix because of its large surface area, high ion exchange capacity, enormous affinity for water due to hygroscopicity, and capacity to form organo-mineral complexes. It is an important source and sink of atmospheric CO2 and other greenhouse gases depending on climate, land use, soil and crop management, and a wide range of abiotic and biotic factors, including the human dimensions of socioeconomic and political factors. Agroecosystems are among important controls of the global carbon cycle with a strong impact on anthropogenic or abrupt climate change. This volume of Advances in Soil Sciences explains pedological processes set-in-motion by increases in SOM content of depleted and degraded soils. It discusses the relationship between SOM content and critical soil quality parameters including aggregation, water retention and transport, aeration and gaseous exchange, and chemical composition of soil air. The book identifies policy options needed to translate science into action for making sustainable management of SOM as a strategy for adaptation to and mitigation of climate change. Features: Relates soil organic matter stock to soil processes, climate parameters, vegetation, landscape attributes Establishes relationships between soil organic matter and land use, species, and climate Identifies land use systems for protecting and restoring soil organic matter stock Links soil organic matter stock with the global carbon cycle for mitigation of climate change Part of the Advances in Soil Sciences series, this volume will appeal to agricultural, environmental, and soil scientists demonstrating the link between soil organic matter stock and provisioning of critical ecosystem services for nature and humans.
Download or read book Bio based Solutions for Sustainable Development of Agriculture written by Eduardo V. Soares and published by Frontiers Media SA. This book was released on 2022-11-18 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1999 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur written by Joseph Jez and published by ASA-CSSA-SSSA. This book was released on 2008 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfur forms and cycling processes in soil and their relationship to sulfur fertility / Jeff J. Schoenau and Sukhdev S. Malhi -- Sulfur nutrition of crops in the Indo-Gangetic plains of South Asia / M.P.S. Khurana, U.S. Sandana and Bijay-Singh -- Soil sulfur cycling temperate agricultural systems / Jørgen Eriksen -- History of sulfur deficiency in crops / Silvia Haneklaus, Elke Bloem and Ewald Schnug -- Availability of sulfur to crops from soil and other sources / Warren A. Dick, David Kost and Liming Chen -- Sulfur and cysteine metabolism / Rainer Hoefgen and Holger Hesse -- Sulfur response based on crop, source, and landscape position / Dave Franzen and Cynthia A. Grant -- Sulfur management for soybean production / Kiyoko Hitsuda [and others] -- Sulfur in a fertilizer program for corn / George W. Rehm and John G. Clapp -- Sulfur nutrition and wheat quality / Hamid A. Naeem -- Sulfur and marketable yield of potato / Alexander D. Pavlista -- Sulfur, its role in onion production and related alliums / George E. Boyhan -- Sulfur and the production of rice in wetland and dryland ecosystems / Richard W. Bell -- Evaluation of the relative significance of sulfur and other essential mineral elements in oilseed rape, cereals, and sugar beet production / Ewald Schnug and Silvia Haneklaus -- Improving the sulfur-containing amino acids of soybean to enhance its nutritional value in animal feed / Hari B. Krishnan -- Methionine metabolism in plants / Rachel Amir and Yael Hacham -- Plant sulfur compounds and human health / Joseph M. Jez and Naomi K. Fukagawa -- A future crop biotechnology view of sulfur and selenium / Muhammad Sayyar Khan and Rüdiger Hell.
Download or read book Publications of the Northeastern Research Station written by United States. Forest Service. Northeastern Research Station and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Botanical Survey of Rock Creek Research Natural Area Kentucky written by and published by . This book was released on 2000 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wetland Soils written by Michael J. Vepraskas and published by CRC Press. This book was released on 2000-09-15 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering wetlands soils from Florida to Alaska, Wetland Soils: Genesis, Hydrology, Landscapes, and Classification provides information on all types of hydric soils. With contributions from soil scientists who have extensive field experience, the book focuses on the soil morphology of the wet soils that cover most wetlands from the subtropics northw
Download or read book An Investigation of the Factors Controlling the Terrestrial Sulfur Cycle written by Simona Andreea Yi-Balan and published by . This book was released on 2013 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract An Investigation of the Factors Controlling the Terrestrial Sulfur Cycle by Simona Andreea Yi-Balan Doctor of Philosophy in Environmental Science, Policy, and Management University of California, Berkeley Professor Ronald Amundson, Chair Sulfur (S), like nitrogen (N), is an essential macronutrient for life on Earth. Its deficit in soils decreases primary productivity, but its excess can impair ecosystem health. Unlike N cycling however, for which both the natural and the human-impacted cycles have been well studied, most research on S has focused on S pollution. My thesis addressed S cycling in pristine terrestrial systems, to understand the potential effects of global change on these essential functions. I used chemical analyses and stable isotopes to investigate the impact of climate, vegetation, topography, parent material and landscape age on the natural terrestrial S cycle in comparison to that of N.I examined the S content and isotopic composition (as [delta]34S values) in soils and vegetation at 11 sites spanning broad gradients of climate globally. Soil S content generally increased with mean annual precipitation (MAP), but was uncorrelated with mean annual temperature (MAT). Soil and plant [delta]34S values increased with increasing MAP and MAT. MAP and MAT together accounted for about half of the observed variability in folial [delta]34S values, and for over a quarter of the observed variability in soil [delta]34S. These S patterns resembled those of soil N, known from previous studies. The difference between the [delta]34S values of soils and atmospheric inputs increased significantly, but weakly, with MAP, suggesting greater biological S isotope fractionation in wetter climates. To directly explore the impact of vegetation, topography and parent material on soil S biogeochemistry, I collected soil, plant, pore water and precipitation samples from the wet tropical Luquillo Experimental Forest, Puerto Rico. Topography impacted S cycling by influencing soil redox conditions, while vegetation and parent material had a minimal impact. Pore water data suggested the co-occurrence of at least three major S-fractionating processes: plant uptake, mineralization and dissimilatory bacterial sulfate reduction (DBSR). This complex biogeochemical cycling appeared to be driven by the high rainfall. I modeled soil isotopic fractionation assuming advective transport of organic matter through the soil profile. This model worked well for N, but failed to describe S transformations, revealing a decoupling of the N and S biogeochemical cycles in these soils due to biotic processes. I found a similar decoupling of S from N cycling on a chronosequence of marine terraces in Santa Cruz, California, where I investigated the impact of landscape age. I propose that two factors account for this apparent greater redox sensitivity of S compared to N isotopes. First, S is in less biological demand, and thus more readily fractionated by redox reactions, unlike N, which might be fully consumed for plant and microbial cellular metabolism during biological processes. Second, S may experience several reduction-reoxidation cycles due to its retention in soils via adsorption on iron and aluminum oxides, unlike N, which is easily lost from soils once reduced to gaseous form. In the deeper soil layers, processes that deplete the heavy S isotope (such as DBSR) dominated in the youngest soils, while processes that enrich the soil in the heavy isotope (such as mineralization) dominated in the older soils. Furthermore, pore water data revealed a division in soil processes with depth in the older soils, with large fluctuations in sulfate concentration and isotope fractionation near the surface (likely due to DBSR), but little change below the well-developed argillic horizons. My data showed no significant effect of phosphorus limitation on S cycling in the older soils. Rather, age impacted soil S content and [delta]34S values mostly due to changes in hydrology, including the development of a water restrictive argillic horizon, with increasing soil age. In summary, my results showed that, of the factors examined, rainfall effects modified by landform characteristics are the most important controls on S biogeochemistry that dictate the types and rates of processes. S cycling should, therefore, most directly respond to the changes in rainfall predicted to occur due to global change. Specifically, a significant decrease in rainfall in many regions may reduce soil S content and the extent of its biological cycling.
Download or read book Biochemical Oxidation of Sulfur and Its Significance to Agriculture written by Jacob Samuel Joffe and published by . This book was released on 1922 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
