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Impact Of Long Term Fertilization And Cropping Systems On Soil Properties And Organic Carbon Dynamics In Alfisols Of Southern Dry Zone Of Karnataka
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Book Synopsis Impact of Long Term Fertilization and Cropping Systems on Soil Properties and Organic Carbon Dynamics in Alfisols of Southern Dry Zone of Karnataka by : Kamaljit
Download or read book Impact of Long Term Fertilization and Cropping Systems on Soil Properties and Organic Carbon Dynamics in Alfisols of Southern Dry Zone of Karnataka written by Kamaljit and published by . This book was released on 2007 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Organic Carbon Dynamics in Long Term Fertilization and Manuring Under Finger Millet Maize Cropping System by : K.R. Lavanya
Download or read book Soil Organic Carbon Dynamics in Long Term Fertilization and Manuring Under Finger Millet Maize Cropping System written by K.R. Lavanya and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Organic Carbon Distribution in Soils Under Long Term Rice Cropping Systems in Coastal and Southrern Dry Zones of Karnataka by : GEO JOSE
Download or read book Organic Carbon Distribution in Soils Under Long Term Rice Cropping Systems in Coastal and Southrern Dry Zones of Karnataka written by GEO JOSE and published by . This book was released on 2005 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long Term Effect of Cropping Systems and Organic Manure Application on Soil Properties in Vertisol by : MADHUKAR S
Download or read book Long Term Effect of Cropping Systems and Organic Manure Application on Soil Properties in Vertisol written by MADHUKAR S and published by . This book was released on 1997 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Aggregate Dynamics in the Relationship Between Carbon Stabilization and Carbon Input Within Agroecosystems by : Angela Yin Yee Kong
Download or read book The Role of Aggregate Dynamics in the Relationship Between Carbon Stabilization and Carbon Input Within Agroecosystems written by Angela Yin Yee Kong and published by . This book was released on 2005 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Disentangling the Effects of Long-term Fertilisation on Soil Carbon Dynamics by : Jonathan David Kidd
Download or read book Disentangling the Effects of Long-term Fertilisation on Soil Carbon Dynamics written by Jonathan David Kidd and published by . This book was released on 2017 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Long-term Cropping Systems on Organic Matter and Nitrogen Contents, Aggregation, Bulk Density and Water-holding Capacity of Soil by : Pir Muhammad Azizi
Download or read book Effect of Long-term Cropping Systems on Organic Matter and Nitrogen Contents, Aggregation, Bulk Density and Water-holding Capacity of Soil written by Pir Muhammad Azizi and published by . This book was released on 1972 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Carbon Dynamics Across Contrasting Temperate Agroecosystems by : Keunbae Kim
Download or read book Carbon Dynamics Across Contrasting Temperate Agroecosystems written by Keunbae Kim and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perennial grain crops have been proposed as a sustainable alternative to conventional annual grain crops, since they potentially hold multiple desirable features including increased soil C sequestration and biodiversity, mitigation of greenhouse gases (GHGs), and reduction of water loss and others. These attributes are accomplished by their no-tillage management, longer growing season, and pervasive root systems. Nonetheless, the ramifications of implementing novel perennial grain cropping systems to the atmosphere, lithosphere, and biosphere remains elusive. In this research, comprehensive comparisons were made to enhance current understanding of how annual versus perennial grain cropping differ in soil organic matter (SOM) pools, GHGs emissions, and mycorrhizae (i.e., AMF). Five contrasting cropping systems --fallow, annual-grain, biennial-grain, perennial-grain, and perennial-forage -- were compared with and without N fertilizer addition. A randomized complete block design consisting of four replicates was initiated at sites located in Edmonton and Breton, Alberta, Canada. In addition to the replicate plots, two adjacent 4-ha fields, including annual vs. perennial grain crops, were set up for eddy covariance measurements at the Breton site. By doing so, it was expected that they address a limitation of the chamber measurements with respect to instantaneous and heterogeneous capture, as well as evapotranspiration (ET) comparison. As a result of SOC fractionation, perennial grain crops increased soil C concentration in both transitory and stable pools compared with annual grain compartments, although overall soil C sequestration occurred as a function of N fertilizer, cropping systems, and underlying soil texture. Moreover, substantial CH4 and CO2 uptake were observed in perennial grain cropping system compared with annual grain crops likely due to a shift to favorable GHGs sink conditions such as aeration-moisture balance, photosynthetic activity, and microbial decomposition. However, overall cumulative ET and associated ecosystem-water use efficiency were similar with between the two cropping systems. Lastly, arbuscular mycorrhizal fungi (AMF) community compositions between annual and perennial grain cropping systems exhibited no significant difference, likely due to the genetic similarity of two crops. In addition, the two contrasting study sites had different patterns of AMF alpha and beta diversity, which may be a result of differing inherent soil properties and management legacy effect across field sites. In sum, AMF communities appear to be impervious to annual vs perennial grain crops, rather their most pronounced difference are field site specific. In sum, my research has been conducted for an overall assessment of whether perennial grain crops play a multifunctional role in agroecosystems toward better sustainability.
Book Synopsis Soil Carbon in the Monaro Region by : Susan Orgill
Download or read book Soil Carbon in the Monaro Region written by Susan Orgill and published by NSW Agriculture. This book was released on 2015-12-01 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monaro Farming Systems (MFS) is a regional landholder group initiated and developed in September 2007. The group was set up, primarily, as a knowledge- and information-based organisation, to help farm businesses to be more profitable and resilient in the long term. In this way it allows peers and researchers to work together to improve practice and innovation in farming systems. The group has over 100 individual members, from the Bombala, Cooma-Monaro and Snowy River Shires. These members manage approximately 30% of the privately held land on the Monaro region (over 80,000ha) and are responsible for approximately 40% of agricultural production. The Monaro soil carbon project aimed to demonstrate the impact of farm management strategies on the concentration and stock of carbon in soil over a two year period. Eight different land-use systems were identified by members of the Monaro Farming Systems group. The practices of interest included liming, nutrient management, introduced perennial pastures and minimum disturbance cropping. In addition the project looked at increases in biomass production within the context of reducing DSE emissions intensity and any offsets required for increases in stocking rates associated with production gains. Monaro Farming Systems members wanted to compare the influence of soil type, rainfall and land management on carbon stocks. The questions they wanted answered were: Does minimum disturbance cropping influence carbon stocks over a 2 year period? What is the effect of ‘parent material’ ie. shale, deep granite and basalt (ascending texture, fertility and structure) on carbon stocks in the Monaro region? What influence does ‘aspect’ have on carbon stocks in a system with optimum sequestration potential ie. fertilised, permanent, perennial pasture system? Does liming introduced pasture increase C sequestration? What effect does soil fertility have on C stocks in the Monaro region? What effect does pasture age have on the potential of a phalaris perennial pasture to sequester carbon. Does age create a ‘ceiling’ on sequestration potentials?
Book Synopsis Soil Carbon Stabilization to Mitigate Climate Change by : Rahul Datta
Download or read book Soil Carbon Stabilization to Mitigate Climate Change written by Rahul Datta and published by Springer Nature. This book was released on 2021-08-25 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon stabilization involves to capturing carbon from the atmosphere and fix it in the forms soil organic carbon stock for a long period of time, it will be present to escape as a greenhouse gas in the form of carbon dioxide. Soil carbon storage is an important ecosystem service, resulting from interactions of several ecological processes. This process is primarily mediated by plants through photosynthesis, with carbon stored in the form of soil organic carbon. Soil carbon levels have reduced over decades of conversion of pristine ecosystems into agriculture landscape, which now offers the opportunity to store carbon from air into the soil. Carbon stabilization into the agricultural soils is a novel approach of research and offers promising reduction in the atmospheric carbon dioxide levels. This book brings together all aspects of soil carbon sequestration and stabilization, with a special focus on diversity of microorganisms and management practices of soil in agricultural systems. It discusses the role of ecosystem functioning, recent and future prospects, soil microbial ecological studies, rhizosphere microflora, and organic matter in soil carbon stabilization. It also explores carbon transformation in soil, biological management and its genetics, microbial transformation of soil carbon, plant growth promoting rhizobacteria (PGPRs), and their role in sustainable agriculture. The book offers a spectrum of ideas of new technological inventions and fundamentals of soil sustainability. It will be suitable for teachers, researchers, and policymakers, undergraduate and graduate students of soil science, soil microbiology, agronomy, ecology, and environmental sciences
Book Synopsis Properties and Management of Soils in the Tropics by : Pedro A. Sanchez
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.
Book Synopsis Organic Matter and Phosphorus Dynamics Under Selected Cropping Systems in the South American Tropics by : Samuel Phiri
Download or read book Organic Matter and Phosphorus Dynamics Under Selected Cropping Systems in the South American Tropics written by Samuel Phiri and published by . This book was released on 2000 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil Organic Carbon and Aggregate Dynamics in a Long-term Agroecosystem by : Bethanie Hooker
Download or read book Soil Organic Carbon and Aggregate Dynamics in a Long-term Agroecosystem written by Bethanie Hooker and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Linking Carbon and Nitrogen Cycling to Plant-soil-microbial Interactions at the Field-, Soil Pedon-, and Micro-scales Within Long-term Conventional, Low-input, and Organic Cropping Systems by :
Download or read book Linking Carbon and Nitrogen Cycling to Plant-soil-microbial Interactions at the Field-, Soil Pedon-, and Micro-scales Within Long-term Conventional, Low-input, and Organic Cropping Systems written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the greatly increased productive capacity of current-day cropping systems, the shortcomings associated with conventional, high-intensity cropping systems and the growing threat of global climate change, warrant the identification of crop management practices that promote long-term agricultural sustainability and productivity. Unlike conventional cropping practices, which include synthetic nitrogen and pesticide use, alternative crop management practices, e.g., cover cropping, tillage reduction, organic amendment additions, and reducing or eliminating synthetic fertilizer use, have emerged as integrated and ecologically sound approaches to enhance agroecosystem functioning and services. Yet, mechanisms governing the differences in soil quality and crop yields among alternative cropping systems and conventional systems remain unclear. The aim of this dissertation study was to understand and quantify the mechanisms governing the relationship between carbon and nitrogen cycling and the interactions between plants, soil, and microorganisms within long-term conventional (annual synthetic fertilizer), low-input (alternating synthetic fertilizer and cover crop additions), and organic (annual manure- and cover crop additions) cropping systems, at the field-, soil pedon-, and micro-scales. A multi-scaled approach, including agronomic experiments, stable isotopes (13C and 15N), soil fractionation techniques, and microbiological analyses (e.g., functional gene quantification and phospholipid fatty acid assays), was employed to study mechanisms of soil carbon and nitrogen stabilization and loss and to draw links between microbial populations and carbon and nitrogen processing across different agroecosystems. Data from this research only partly corroborated the global hypothesis: the effects of long-term, low-input crop management enhance microbial-mediated carbon and nitrogen turnover in different soil microenvironments and optimize the balance between carbon and nitrogen stabilization and loss compared to the conventional and organic cropping systems. Only a weak relationship between short-term microbial community structure and long-term carbon and nitrogen sequestration was found across the three cropping systems. The conclusion drawn is that the effects of long-term crop management are dictated by complex trade-offs between soil carbon and nitrogen stabilization, microbial abundance and activity, nitrogen losses, crop productivity, and the quantity and quality of carbon and nitrogen inputs in alternative cropping systems.
Book Synopsis Effects of Plant-soil Interactions on Grassland Carbon Dynamics in a Changing World by : Robert Kenneth Connell
Download or read book Effects of Plant-soil Interactions on Grassland Carbon Dynamics in a Changing World written by Robert Kenneth Connell and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Plants are a major conduit through which carbon moves between the atmosphere and the terrestrial biosphere. The organic inputs from plants provide energy to soil microbes which fuels microbial extracellular enzyme production. Soil microbial activity determines the proportion of plant organic inputs that remains stored in soil as organic matter or is mineralized and released back into the atmosphere as carbon dioxide. Plant-soil interactions are, therefore, a critical driver of terrestrial carbon cycling. We live in an era of human-driven change which affects every aspect of ecosystem functioning, so it is critical to understand how different global change factors modulate the plant-soil interactions that influence carbon cycling. In this dissertation I focus on the effects of four specific global change factors on plant-soil interactions in a tallgrass prairie ecosystem: (1) land-use change (i.e., fire suppression and bison removal), (2) woody encroachment, (3) plant invasion, and (4) nutrient enrichment. The overall conclusion from my dissertation research is that all four of these global change factors alter plant-soil interactions in ways that change the storage or turnover of soil carbon. First, long-term fire suppression and/or bison exclusion increases soil C content over time. This change in soil C content is associated with an increase in woody plants in the case of fire suppression or an increase in the dominance of warm-season grasses in the case of bison exclusion under a frequent fire regime. Second, potential C mineralization rates under clonal woody shrubs is higher when the microbial community is decomposing proportionally more shrub-derived organic matter, suggesting that the rate of soil C flux may be dependent on how long the soil has been occupied by woody species. Third, the invasive grass Bromus inermis induces legacy effects on soil microbial community composition and soil organic matter (SOM) decomposition rates. These legacy effects persist for at least six months post-invasive grass removal. Finally, phosphorus fertilization stimulates the rate of SOM decomposition in soil undergoing woody encroachment, but nitrogen fertilization does not. Collectively, these results suggest that the effects of many global change factors on carbon cycling is dependent on spatiotemporal context and historical factors. Additionally, since each of the global change factors I studied affected carbon cycling independently, it will be important to study the combined effects of multiple global change factors acting simultaneously in order to better predict how carbon cycles through terrestrial ecosystems as the world continues to change.
Book Synopsis Impacts of Cropping Systems on Soil Health and Microbial Ecology by : Korbla Edwin Akley
Download or read book Impacts of Cropping Systems on Soil Health and Microbial Ecology written by Korbla Edwin Akley and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Declining soil health is the underlying cause of decreasing agricultural productivity and environmental degradation. To address this challenge, research was conducted to determine how: (1) cover crops affect soil health in Kansas, USA and (2) direct seeding mulch-based cropping (DMC) systems affect soil health in Nyankpala, Ghana. Soil health indicators assessed include: biomass yield (kg ha−1), soil microbial respiration (SMR), soil microbial C and N (MBC & MBN), potentially mineralizable N (PMN), dissolved organic carbon (DOC), soil organic C (SOC), soil total nitrogen (TN), phospholipid fatty acid analysis (PLFA), water stable aggregate (WSA), bulk density, pH, N, P, K, Ca and Mg. DMC systems from Ghana yielded significantly greater biomass compared to the control. High biomass produced by DMC systems did not increase SOC and PMN relative to the control. Fertilizer application had a significant impact on biomass production, which resulted in a significant increase in SOC and PMN in the 0-5 cm soil layer. Soil pH was significantly reduced by cropping systems and fertilizer in the 0-5 cm soil layer. Microbial biomass N, TN, SMR, N, P, Ca and Mg were not affected by the DMC cropping systems. Application of mineral fertilizer increased SMR, MBN, TN, N, and P. Soil K was also significantly affected by cropping systems and mineral fertilizer. The combination of mineral fertilizer and plant residues would be needed to improve soil health and increase crop productivity in the Guinea Savanna Zone of Ghana. Liming would be required to address low soil pH. In the USA, of all the soil health indicators examined, actinomycetes, gram-positive bacteria, fungi-bacteria ratio (F:B), SMR, MBN and WSA, were those significantly influenced by cover crops. The interactive effect of cover cops and N fertilizer also affected gram-positive bacteria, total PLFA, MBN, F:B ratio and WSA. Cover crop residues contributed to the observed differences in these indicators. The low response of soil health indicators suggest further evaluations are needed to determine the effectiveness of the indicators.
Book Synopsis Global Climate Change and Tropical Ecosystems by : John M. Kimble
Download or read book Global Climate Change and Tropical Ecosystems written by John M. Kimble and published by Routledge. This book was released on 2019-04-04 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tropical ecosystems - the regions between the tropics of Cancer and Capricorn - play an important role in global processes, economic issues, and political concerns. In their natural state, tropical ecosystems support a large quantity of above- and below-ground biomass, and constitute a major part of the terrestrial carbon pool. Conversion of the natural ecosystem to agriculture and forestry ecosystems disturbs this ecological balance. Global Climate Change and Tropical Ecosystems presents data on carbon pool fluxes from case studies in 12 countries in tropical regions. The chapters cover: Characteristics of tropical ecosystems Soil and biotic carbon pools Impacts of land use and soil management Slash-and-burn practices Crop residue and fertility management This volume adds to the understanding of pedospheric processes in tropical ecosystems and how to better use soils as a sink for carbon dioxide and other greenhouse gases. With Global Climate Change and Tropical Ecosystems you will understand the link between soil productivity, environmental quality and the global carbon cycle, not only in these ecologically sensitive regions but worldwide.
