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Tillage Effects On Soil Properties Following Conditions That Simulated The Conservation Reserve Program Crp
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Book Synopsis Tillage Effects on Soil Properties Following Conditions that Simulated the Conservation Reserve Program (CRP) by : Marcia L. Blecha
Download or read book Tillage Effects on Soil Properties Following Conditions that Simulated the Conservation Reserve Program (CRP) written by Marcia L. Blecha and published by . This book was released on 1994 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : Wade H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Book Synopsis Conservation Reserve Program by : Mark Hanna
Download or read book Conservation Reserve Program written by Mark Hanna and published by . This book was released on 1996 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landowners have a variety of tillage options for CRP land. Make tillage decisions based on conservation concerns, farming objectives, and plant and soil conditions.
Book Synopsis Tillage System Effects on Physical Properties of a Western South Dakota Vertisol Following the Conservation Reserve Program by : Corey J. Amdahl
Download or read book Tillage System Effects on Physical Properties of a Western South Dakota Vertisol Following the Conservation Reserve Program written by Corey J. Amdahl and published by . This book was released on 1998 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Effects of U.S. Department of Agriculture Conservation Programs by :
Download or read book Environmental Effects of U.S. Department of Agriculture Conservation Programs written by and published by . This book was released on 2004 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil/water Science Research in the Plant Science Department ... Annual Report by :
Download or read book Soil/water Science Research in the Plant Science Department ... Annual Report written by and published by . This book was released on 1994 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Soil and Water Conservation by :
Download or read book Journal of Soil and Water Conservation written by and published by . This book was released on 2011 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. 25, no. 1 contains the society's Lincoln Chapter's Resource conservation glossary.
Book Synopsis Effects Conservation Tillage On Ground Water Quality by : Terry J Logan
Download or read book Effects Conservation Tillage On Ground Water Quality written by Terry J Logan and published by CRC Press. This book was released on 2018-01-18 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays the environmental sustainability of the cropping systems is increasingly requested by the consumers. Conventional tillage practices, totally turning over the soil between the vineyard rows, may cause erosion due to rain as well as structure destruction of the soil in the long term. Conservation tillage is a soil management technique, poorly widespread in Sardinia, allowing cover cropping between vineyard rows. Furthermore, this technique makes the canopy development control of herbage possible by cutting it up during specific phenological phases. Conservation tillage usually involves direct benefits to farmers such as increasing soil fertility as well as reductionof tillage costs, soil erosion and carbon dioxide (CO2) emissions in the atmosphere. This long term trial, during at least five years aims to assess the conservation tillage impact on chemical-physical soil characteristics in comparison with traditional tillage by evaluating the change of organic matter, C.E.C. and availability of major plant nutrients in the soil and to estimate their probable rise. The field plots are located in a 35% slope condition vineyard, showing massive erosion problem and organic matter low content. A split/plot design with four replications was set up, with the comparison between conservation and traditional tillage apart as main plots. Moreover, the effects of two different irrigation levels were evaluated in the subplots of each main plot. At the beginning of the trial (2011) a pedological survey was made. Three soil profiles were described and sampled along the field slope and soil sampling in each plot were made both to characterize the soil and to find the zero point. The soil chemical and physical characteristics were monitored through a second soil sampling made at the end of 2013. Conservation tillage caused increasing organic matter content and C.E.C. values. As for major plant nutrients in soil, results were more uncertain. Grapevine yield and quality parameters did not show any negative effect when passing from conventional to conservation tillage techniques. The trial provided a preliminary positive evaluation of conservation tillage. However, more years are required to confirm this trend.
Book Synopsis Conservation Tillage in U.S. Agriculture by : Noel Uri
Download or read book Conservation Tillage in U.S. Agriculture written by Noel Uri and published by CRC Press. This book was released on 2021-05-30 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover farming techniques that will decrease soil erosion and costs!Soil erosion from U.S. croplands has long been recognized as a national problem. Conservation Tillage in U.S. Agriculture: Environmental, Economic, and Policy Issues is the first ever complete study of the costs and benefits of using conservation tillage to prevent soil erosion. Designed for professionals working in the areas of soil science, agronomy, economics, environmental studies, and agriculture, this complete study covers everything from machinery and trends in conservation tillage to its adoption to use in regions of the United States.With this in-depth manual, you will examine different types of tillage and the many benefits this practice can ensure, such as improving water quality, increasing organic matter in your soil, sequestering carbon, and providing habitat and food for wildlife. Covering the economic, environmental, and policy issues of this practice, Conservation Tillage in U.S. Agriculture features: the history of conservation tillage case studies on costs and benefits of differing conservation tillage practices with various crops tables and graphs of trends, and case studies concerning the use of different farming methods U.S. Department of Agriculture soil conservation policies how to prevent soil erosion without harming the environment factors affecting conservation tillage, adoption, and use for crops such as peanuts, potatoes, beets, tobacco, and vegetables. With the help of this book, you will measure the benefits and costs of conservation tillage based on profitability and environmental impact and explore the positive and negative environmental consequences that may involve air, land, water, and/or the health and ecological status of wildlife. Conservation Tillage in U.S. Agriculture is a timely and informative look at conservation tillage practices that will help you improve residue management and create better conditions for wildlife and the environment.
Author :United States. Congress. House. Committee on Agriculture. Subcommittee on Environment, Credit, and Rural Development Publisher : ISBN 13 : Total Pages :200 pages Book Rating :4.3/5 (121 download)
Book Synopsis Future of the Conservation Reserve Program by : United States. Congress. House. Committee on Agriculture. Subcommittee on Environment, Credit, and Rural Development
Download or read book Future of the Conservation Reserve Program written by United States. Congress. House. Committee on Agriculture. Subcommittee on Environment, Credit, and Rural Development and published by . This book was released on 1995 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed to some depository libraries in microfiche.
Book Synopsis Conservation Tillage Effects on Soil Properties and Corn Yields in Central Michigan by : Michael James Staton
Download or read book Conservation Tillage Effects on Soil Properties and Corn Yields in Central Michigan written by Michael James Staton and published by . This book was released on 1988 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soils and Fertilizers written by and published by . This book was released on 1998 with total page 1054 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soil and Water Quality by : National Research Council
Download or read book Soil and Water Quality written by National Research Council and published by National Academies Press. This book was released on 1993-02-01 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: How can the United States meet demands for agricultural production while solving the broader range of environmental problems attributed to farming practices? National policymakers who try to answer this question confront difficult trade-offs. This book offers four specific strategies that can serve as the basis for a national policy to protect soil and water quality while maintaining U.S. agricultural productivity and competitiveness. Timely and comprehensive, the volume has important implications for the Clean Air Act and the 1995 farm bill. Advocating a systems approach, the committee recommends specific farm practices and new approaches to prevention of soil degradation and water pollution for environmental agencies. The volume details methods of evaluating soil management systems and offers a wealth of information on improved management of nitrogen, phosphorus, manure, pesticides, sediments, salt, and trace elements. Landscape analysis of nonpoint source pollution is also detailed. Drawing together research findings, survey results, and case examples, the volume will be of interest to federal, state, and local policymakers; state and local environmental and agricultural officials and other environmental and agricultural specialists; scientists involved in soil and water issues; researchers; and agricultural producers.
Book Synopsis Variability of Soil Hydraulic Properties and Estimation of Plant-available Water on Claypan-soil Landscapes by : Pingping Jiang
Download or read book Variability of Soil Hydraulic Properties and Estimation of Plant-available Water on Claypan-soil Landscapes written by Pingping Jiang and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil hydraulic properties and plant-available water (PAW) capacity are critical properties in evaluating land management and soil productivity. This study investigated these properties for claypan-soil landscapes in Central Missouri. The objectives were: (1) to evaluate the effects and interactions of conservation management, landscape position and the claypan layer on hydraulic properties including saturated hydraulic conductivity (K [subscript] sat), water retention, pore-size distributions and bulk density; (2) to investigate direct relationships between measured PAW capacity and apparent soil electrical conductivity (EC [subscript] a), and to test the hypothesis that soil PAW capacity can be approximated at a field scale using a theoretical two-layer soil profile, i.e., a silt-loam topsoil layer and a silty-clay subsoil layer; and (3) to evaluate relationships of measured PAW capacity with measured corn grain yield as well as to estimated PAW capacity using a previously-developed Simple Inverse Yield Model (SIYM). Soil series on study sites included Mexico (fine, smectitic, mesic Aeric Vertic Epiaqulfs), Adco (fine, smectitic, mesic Aeric Vertic Albaqualfs), and Leonard (fine, smectitic, mesic, Vertic Epiaqualfs). For objective 1, management treatments were mulch tillage with a corn (Zea mays L.)-soybean [Glycine max (L.) Merr.] rotation (MTCS); no-till with a corn-soybean-wheat (Triticum aestivum L.) rotation (NTCSW) with a red clover (Trifolium pretense L.) cover crop following wheat; a Conservation Reserve Program system (CRP); and a hay crop system . For objective 3, the same two fields were used. Inputs for SIYM simulation were growing season mean maximum and minimum daily air temperature, daily precipitation, hourly vapor pressure deficit, and soil PAW. Nine site-years of corn grain yield data were used to estimate PAW. Results for Objective 1 showed management effects were only statistically evident in the surface 0 to 10-cm depth. The CRP was the best management for the soil properties studied with decreased bulk density, increased K, increased water retention, and increased fraction of larger pores. At the backslope, Kvalues for CRP and HAY were 16 and 10 times higher, respectively, than values for MTCS. The use of perennial grasses in rotation will benefit soil hydraulic properties, particularly at landscape positions most vulnerable to degradation. Results for Objective 2 showed significant relationships between the reciprocal function of EC(HAY). Landscape positions were summit, backslope and footslope. At each combination of management treatment and landscape position, intact soil core samples (76 by 76 mm) were taken from the 0- to 10-, 10- to 20-, and 20- to 30-cm soil depths. For objective 2, soil profile samples were taken at 18 to 19 locations from each of two close-by fields and PAW capacity was determined for a 1.2-m soil profile (PAW1.2). Plant-available water fraction values of 0.23 and 0.12 were used for the topsoil layer (assumed to be silt loam) and subsoil layer (assumed to be silty clay) textures, and the boundary between the two layers was determined by EC [subscript] asatsat [subscript] a (EC [subscript] a−1) and the lower limit of PAW1.2. Relationships between EC [subscript] a−1 and PAW1.2 were also found to be significant with an average regression r2 of 0.76. The two-layer-soil hypothesis was proven to provide reasonably accurate PAW1.2 estimates with root mean square error (RMSE) of 16 mm, compared with the measured PAW1.2. Large underestimates of PAW1.2 were a result of underestimation of topsoil and the SIYM PAW estimates were weak. The rvalues were 0.43 and 0.31 for the two study fields. Claypan soil characteristics (i.e., low hydraulic conductivity, slow recharge, poor drainage, and high soil resistance for water movement to roots) introduced additional yield variability, which SIYM was not designed to handle. The results of this study were useful for designing best management systems and for guiding site-specific management for claypan-soil landscapes thickness, whereas large overestimates were attributed to a few soil horizons at less than field capacity. Soil ECcan be used as a quick and cost-efficient tool to quantify and map PAW capacity for similar soil landscapes. The relationships between the measured PAW [subscript] a1.22.
Book Synopsis Tillage Effects on Soil Physical Properties and Process ; Proceeding by : P. W. Unger
Download or read book Tillage Effects on Soil Physical Properties and Process ; Proceeding written by P. W. Unger and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agronomy News written by and published by . This book was released on 1995 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Book Synopsis Sustainable Agriculture Reviews by : Eric Lichtfouse
Download or read book Sustainable Agriculture Reviews written by Eric Lichtfouse and published by Springer. This book was released on 2015-07-07 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable agriculture is a rapidly growing field aiming at producing food and energy in a sustainable way for humans and their children. Sustainable agriculture is a discipline that addresses current issues such as climate change, increasing food and fuel prices, poor-nation starvation, rich-nation obesity, water pollution, soil erosion, fertility loss, pest control, and biodiversity depletion. Novel, environmentally-friendly solutions are proposed based on integrated knowledge from sciences as diverse as agronomy, soil science, molecular biology, chemistry, toxicology, ecology, economy, and social sciences. Indeed, sustainable agriculture decipher mechanisms of processes that occur from the molecular level to the farming system to the global level at time scales ranging from seconds to centuries. For that, scientists use the system approach that involves studying components and interactions of a whole system to address scientific, economic and social issues. In that respect, sustainable agriculture is not a classical, narrow science. Instead of solving problems using the classical painkiller approach that treats only negative impacts, sustainable agriculture treats problem sources. Because most actual society issues are now intertwined, global, and fast-developing, sustainable agriculture will bring solutions to build a safer world.
