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3/29/2020 Geographic Soils Information (Chapter 19) Notes - AGRI1050R50: Introduction to Soil Science (2020S)

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Geographic Soils Information (Chapter 19) Notes

Geographic Soils Information (Chapter 19) Notes

Did you know .... Did you know that almost every acre of soils in the United States has been mapped and characterized? Chapter 19 highlights graphical information from soils and how we can utilize it to better manage our resources.

Lecture content notes are accompanied by videos listed below the notes in each submodule (e.g. Geographic Soils Information Chapter 19) Videos A and B). Print or download lecture notes then view videos in succession alongside lecture content and add additional notes from each video. The start of each video is noted in parenthesis (e.g. Content for Video A) within each lecture note set and contains lecture content through the note for the next video (e.g. Content for Video B).

Figures and tables unless specifically referenced are from the course text, Nature and Property of Soils, 14th Edition, Brady and Weil.

Content Video A

Geographic Soils Information

http://memory.loc.gov/cgi-bin/map_item.pl

Spatial Variability Tremendous vertical AND horizontal variability

Map and manage those zones more effectively – Precision Fertilizer Application

AGRI1050R50: Introduction to Soil Science (2020S) LH

3/29/2020 Geographic Soils Information (Chapter 19) Notes - AGRI1050R50: Introduction to Soil Science (2020S)

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p g y pp

Variable Rate Fertilizer Application

3/29/2020 Geographic Soils Information (Chapter 19) Notes - AGRI1050R50: Introduction to Soil Science (2020S)

https://gotoclass.tnecampus.org/d2l/le/content/8094442/viewContent/60403456/View 3/6

Variable Rate Fertilizer

http://www.tangentcps.com/2013/08/variable-rate-fertilizer.html

Topographic Map

http://nationalmap.gov/ustopo/

National Cooperative Soil Survey USDA-NRCS

Began mapping soils in the late 1800’s

Survey = Map

Detailed, structured, standardized methods of soil characterization, analysis, soil taxonomy naming scheme, etc.

Historically – county basis with hard copies of maps available

Online now – Web Soil Survey

http://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm

User friendly, free source of information

3/29/2020 Geographic Soils Information (Chapter 19) Notes - AGRI1050R50: Introduction to Soil Science (2020S)

https://gotoclass.tnecampus.org/d2l/le/content/8094442/viewContent/60403456/View 4/6

Content Video B

Basics – County Maps Hard copy maps

Widely available

Out of date fast with new technology, imaging, etc.

County Background Information

County Map

General descriptions

Index and Grid for Detailed Maps

Detailed Map Sheet

Maps for county grid w/ delineations for all the various series and mapping units

Included detailed description, series and taxonomic name, chemistry, etc.

Figure 19.17 – Excellent description

http://www.nrcs.usda.gov/wps/portal/nrcs/surveylist/soils/survey/state/?stateId=TN

GIS and GPS Geographic Information System – GIS

Database management system

Digitized analysis, information storage, and map creation

Information in one easy to use format

ArcGIS – computer program

Global Positioning System – GPS

Military development – continue to maintain system

Satellite location – Latitude and Longitude

Pinpoint location anywhere on earth with 3 satellite pings

Precision Ag

3/29/2020 Geographic Soils Information (Chapter 19) Notes - AGRI1050R50: Introduction to Soil Science (2020S)

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Drones

http://kansasagnetwork.com/wp-content/uploads/2015/02/Drones-farm.jpg

http://www.latimes.com/business/la-fi-drones-agriculture-20140913-story.html#page=1

Geographic Soils Information

3/29/2020 Geographic Soils Information (Chapter 19) Notes - AGRI1050R50: Introduction to Soil Science (2020S)

https://gotoclass.tnecampus.org/d2l/le/content/8094442/viewContent/60403456/View 6/6

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Geographic Soils Information

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