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Author : Yichang Sun
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (214 download)
Download or read book Spatial Variability of Selected Soil Chemical Properties in Virgin Prairie Soil written by Yichang Sun and published by . This book was released on 1990 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jacques Antonio Maurice Surrency
Publisher :
ISBN 13 :
Total Pages : 71 pages
Book Rating : 4.:/5 (67 download)
Download or read book Spatial Variation in Soil Chemical Properties at Different Profile Depts Within Selected Arable Fields in Northern Alabama written by Jacques Antonio Maurice Surrency and published by . This book was released on 1996 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kristian Dietrich Stephens
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book The Spatial Variability of Soil Properties and 2,4-D Sorption and Desorption in Two Calcareous Prairie Landscapes written by Kristian Dietrich Stephens and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hans Christian Lybye
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (487 download)
Download or read book Spatial Variability of Soil Properties written by Hans Christian Lybye and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of Soil Spatial Variability for Site-Specific Management Using Soil Electrical Conductivity and Other Remotely Sensed Data written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Field-scale characterization of soil spatial variability using remote sensing technology has a great potential for achieving the successful implementation of site-specific management (SSM). The objectives of this study were to: (i) examine the spatial relationships between apparent soil electrical conductivity (ECa) and soil chemical and physical properties to determine if ECa could be useful to characterize soil properties related to crop productivity in the Coastal Plain and Piedmont of North Carolina; (ii) evaluate the effects of in-situ soil moisture variation on ECa mapping as a basis for characterization of soil spatial variability and as a data layer in cluster analysis as a means of delineating sampling zones; (iii) evaluate clustering approaches using different variable sets for management zone delineation to characterize spatial variability in soil nutrient levels and crop yields. Field studies were conducted in two physiographic regions of North Carolina, the Piedmont and Coastal Plain. Spatial measurements of ECa via electromagnetic induction (EMI) were compared with soil chemical parameters (extractable P, K, and micronutrients; pH, cation exchange capacity (CEC), humic matter or soil organic matter; and physical parameters (percentage sand, silt, and clay; and plant-available water (PAW) content; bulk density; cone index; saturated hydraulic conductivity [Ksat] in one of the coastal plain fields) using correlation analysis across fields. We also collected ECa measurements in one coastal plain study field on four days with significantly different naturally occurring soil moisture conditions measured in five increments to 0.75 m using profiling time-domain reflectometry probes to evaluate the temporal variability of ECa associated with changes in in situ soil moisture content. Nonhierarchical k-means cluster analysis using sensor-based field attributes including vertical ECa, near-infrared (NIR) radiance of bare-soil from an aerial color infrared (CIR) i.
Author : W. H. Shafer
Publisher : Plenum Publishing Corporation
ISBN 13 : 9780306443480
Total Pages : 392 pages
Book Rating : 4.4/5 (434 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Plenum Publishing Corporation. This book was released on 1992 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses Listed by Discipline: Aerospace Engineering. Agricultural Economics, Sciences and Engineering. Architechtural Engineering and Urban Planning. Astronomy. Astrophysics. Ceramic Engineering. Communications Engineering and Computer Science. Cryogenic Engineering. Electrical Engineering. Engineering Mechanics. Engineering Physics. Engineering Science. Fuels, Combustion, and Air Pollution. General and Environmental Engineering. Geochemistry and Soil Science. Geological Sciences and Geophysical Engineering. Geology and Earth Science. Geophysics. Industrial Engineering. Marine and Ocean Engineering. Materials Science and Engineering. Mechanical Engineering and Bioengineering. Metallurgy. Meteorology and Atmospheric Science. 17 additional disciplines. Index.
Author :
Publisher :
ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.3/5 (91 download)
Download or read book Master's Theses Directories written by and published by . This book was released on 1991 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ethan Matthew Laden
Publisher :
ISBN 13 :
Total Pages : 120 pages
Book Rating : 4.E/5 ( download)
Download or read book The Effect of Soil Spatial Variability on the Leaching of Organic Chemicals written by Ethan Matthew Laden and published by . This book was released on 1986 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. Hansen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (473 download)
Download or read book Spatial Variability of Soil Physical Properties written by S. Hansen and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Javed Iqbal
Publisher :
ISBN 13 :
Total Pages : 366 pages
Book Rating : 4.:/5 (477 download)
Download or read book Spatial Variability Analysis of Soil Physical Properties and Validation of GOSSYM/COMAX written by Javed Iqbal and published by . This book was released on 2000 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mardonio Aguair Coelho
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (11 download)
Download or read book Spatial Variability of Water Related Soil Physical Properties written by Mardonio Aguair Coelho and published by . This book was released on 1980 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 504 pages
Book Rating : 4.0/5 ( download)
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mardonio Aguiar Coelho
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.:/5 (563 download)
Download or read book Spatial Variability of Water Related Soil Physical Properties written by Mardonio Aguiar Coelho and published by . This book was released on 1974 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of soil variabitiy. From 36 sites selected by an unbalanced three-stage nested design, 180 core samples were collected at 30cm depth intervals to 150cm. In addition, 500 bulk samples were taken at the 60cm depth on an equally spaced grid over a secondary sampling area of 96m by 76m. The measured parameters showed different patterns of spatial variation. Values of 15-bar moisture retention corresponding to the 500 bulk samples showed a frequency distribution close to the normal with a slight tendency toward skewness. Close relationships were found between bulk density and per cent sand and silt. A highly significant correlation (significant at the 0.01 level) between 15-bar water retention and clay content existed. Particle size distribution exhibited a decrease of silt and clay and a correponding increase of sand with depth. Comparison between the sampling scheme used and three-stage balanced designs revealed that at least two alternatives would be more effective in decreasing the variance of the mean, but they do not provide any degrees of freedom for the third stage. An apparent compromise was found to exist between the scheme used and the optimum unbalanced designs selected for efficient estimation of variance components for the majority of the measured parameters.
Author : Søren Hansen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (91 download)
Download or read book Spatial Variability of Soil Physical Properties written by Søren Hansen and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andrew T. Wood
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.:/5 (89 download)
Download or read book Assessing Soil Spatial Variability Using Cone Penetrometer and Saturated Hydraulic Conductivity Data written by Andrew T. Wood and published by . This book was released on 2004 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relations Between Spatial Variability of Soil Properties and Grain Yield Response to Nitrogen Fertilizer in a Variable Manitoba Soil-landscape written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.E/5 ( download)
Download or read book Proceedings RMRS. written by and published by . This book was released on 1998 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
