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Author : American Society of agronomy
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (97 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Process written by American Society of agronomy and published by . This book was released on 1985 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : EUA) AMERICAN SOCIETY OF AGRONOMY (Madison
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (79 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Processes written by EUA) AMERICAN SOCIETY OF AGRONOMY (Madison and published by . This book was released on 1985 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tillage acomplishments and potential; Efects of tillage on soil physical properties and processes; Examples of prediction of tillage effects on soil properties and processes; Application of predictions of soil physical properties and processes to prediction of crop growth.
Author :
Publisher :
ISBN 13 : 9780891183105
Total Pages : pages
Book Rating : 4.1/5 (831 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Processes written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Society of Agronomy. Meeting
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (841 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Processes written by American Society of Agronomy. Meeting and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : USA) AMERICAN SOCIETY OF AGRONOMY (Madison
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (693 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Processes written by USA) AMERICAN SOCIETY OF AGRONOMY (Madison and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David M. Kral
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (852 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Processes written by David M. Kral and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Hawkins
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (256 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Processes written by S. Hawkins and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (223 download)
Download or read book Predicting Tillage Effects on Soil Physical Properties and Processes written by and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 : 9780891180692
Total Pages : 192 pages
Book Rating : 4.1/5 (86 download)
Download or read book Organic Farming written by and published by . This book was released on 1982 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : P. W. Unger
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (76 download)
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 198 pages
Book Rating : 4.:/5 (71 download)
Download or read book Proceedings... written by and published by . This book was released on 1982 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tillage accomplishments and potencial; Effects of tillage on soil physical propreties ans processes; Examples of prediction of tillage effects on soil properties and processes; Predicting tillage effects on infiltration; Predicting tillage effects on evaporation from the soil; Modeling tillage effects on soil temperature; Modeling soil mechanical behavior during tillage; Application of precditions of soil physical properties and processes to prediction of crop growth.
Author : Eugene Roytburg
Publisher :
ISBN 13 :
Total Pages : 262 pages
Book Rating : 4.:/5 (319 download)
Download or read book Stochastic Modeling of Soil Condition During Tillage written by Eugene Roytburg and published by . This book was released on 1997 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frédéric Antoine Dadoun
Publisher :
ISBN 13 :
Total Pages : 432 pages
Book Rating : 4.3/5 (129 download)
Download or read book Modelling Tillage Effects on Soil Physical Properties and Maize (Zea Mays, L.) Development and Growth written by Frédéric Antoine Dadoun and published by . This book was released on 1993 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Lee Hill
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (118 download)
Download or read book Tillage Effects on Selected Soil Physical Properties written by Robert Lee Hill and published by . This book was released on 1984 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mataba Tapela
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (498 download)
Download or read book Tillage Effects on Seedbed Physical Properties written by Mataba Tapela and published by . This book was released on 2001 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensive tillage requires high energy input and may be detrimental to the environment. There is a need to develop decision support tools to assist farmers in determining optimum tillage intensity for high yields. Previous studies developed quantitative indices that related tilth conditions to yield. The indices, however, proved to be inadequate and sometimes inconsistent. Thus, a three-part research project was carried out from 1998 to 2000 to quantify seedbed condition following tillage and to explain subsequent variation in corn (Zea mays L) yield. Conventional and spatial statistics were used to study the effects of bulk density, penetration resistance and soil moisture content on and biomass at the V2 growth stage (the corn growth stage when the collar of the second leaf has fully developed), and grain yield. A soil condition index was developed and it combined soil physical properties into a single value that was related to yield using regression methods. The soil condition index gave promising results for prediction of early season plant biomass, but was not helpful in predicting grain yield. Confounding of weather conditions made it difficult to determine the true functional relationship between soil tilth and crop yield. Yield and soil map overlays revealed spatial patterns that would have otherwise been aggregated' if only conventional statistical methods were used. With careful experimental design, the impact of weather and other sources of experimental error in tillage trials could be minimized. The research project provided a framework for future experiments focused on quantifying soil tilth.
Author : Jerry F. Kenny
Publisher :
ISBN 13 :
Total Pages : 384 pages
Book Rating : 4.:/5 (297 download)
Download or read book Measurement and Prediction of Tillage Effects on Hydraulic and Thermal Properties of Palouse Silt Loam Soil written by Jerry F. Kenny and published by . This book was released on 1990 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jacob W. Elder
Publisher :
ISBN 13 :
Total Pages : 270 pages
Book Rating : 4.:/5 (71 download)
Download or read book Tillage Effects on Physical Properties and Precesses of Organic Soils in North Central Ohio written by Jacob W. Elder and published by . This book was released on 2006 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Worldwide, peatlands cover approximately 2% of the Earth's surface, but contain an estimated 455 Pg of carbon (C), or 1/3 of the terrestrial C pool. Upon drainage and cultivation, progressive soil development strongly alters physical properties, and peat soils become tremendous sources of atmospheric carbon dioxide (CO2), nitrous oxide (N2O), and methane (CH4). No-till (NT) management has been shown to enhance soil physical characteristics and reduce the emission of GHG in mineral soils. The objectives of this study were to (i) assess the changes in soil physical properties with respect to drainage and land use, (ii) determine the effects of different tillage practices on physical properties of cultivated organic soils, (iii) compare soil moisture content, soil temperature, and GHG emission rates from mold board/disking, no-till, and bare treatments to determine organic matter decomposition, and (iv) measure the rate of subsidence associated with tillage. This report presents preliminary results of changes in soil physical properties, soil moisture content (SMC) and temperature, gaseous emissions, and subsidence rates observed following conversion from conventional plow tillage to no-till management in a Histosol of north central Ohio. Core samples and gas samples were obtained from several associated soil series in the muck area and from experimental plots managed with moldboard plow (MB), no-till (NT), or left bare (B). In general, Pb increased, jc decreased, and organic matter (OM), total carbon (TC), and total nitrogen (TN) concentrations decreased with drainage and land use change. Conversion of plow tillage to NT increased Pb from 0.52 Mg m−3 to 0.57 Mg m−3 , and decreased f[t] from 0.72 m3 m−3 to 0.70 m3 m−3. However, available water content (AWC) increased from 0.98 cm to 1.36 cm in the 0-10 cm layer, as did the proportion of micro- pores (0.1-15 um) with conversion to NT. Annually, SMC was higher in MB treatments (0.90 ± 0.032 kg kg−1) than NT (0.87 ± 0.024 kg kg−1) or B (0.83 ± 0.02 kg kg−1). Daily mean temperatures at 5 cm depth were significantly higher in B (16.9 ± 1.20C) and MB (16.2 ± 1.2 0C) compared to NT (15.9 ± 1.2 0C). The CO2 emissions were lower under NT (18.92 Mg CO2-C ha−1 yr−1) than MB (22.5 18.92 Mg CO2-C ha−1 yr−1) while N2O emissions were significantly higher from MB (96.9 kg N20-N ha−1 yr−1) than NT (35.8 kg N20-N ha−1 yr−1) plots. In all treatments, both CH4 uptake and CH4 emission occurred. Reduced soil organic matter mineralization with NT can limit subsidence and conserve peat soils for an additional 50 to 70 years over MB.
