Clemson soil codes

Soil Codes. Code 1: Sandy, coarse-textured soils where the depth to the clay layer is greater than 40 inches. These soils are sands or loamy sands throughout with no obvious change in soil texture to a depth greater than 40 inches. Code 2: Coarse loamy textured soils where the depth to the clay layer is 20 to 40 inches Vegetable Garden (Square Footage) 090 Home Garden - including herbs (inorganic fertilization) For organic recommendations, use 090 and call the Home and Garden Information Center at 1-888-656-9988 between 8:00 a.m. and 4:30 p.m. during the work week for converting the inorganic recommendations to organic fertilization Fertility Guidelines Recommendations Lime Tables Lime Rate Calculator Crop Codes Soil Codes Report Comments Salinity Interpretation Soil-less Mix Interpretation Cotton Petioles (see pages 15 - 18) Lab Methods Soil. Other Information SC History of Soil Testing Soil Test Yearly Summaries. Contact Agricultural Service Laboratory for volume discounts

Crop Code: Follow this link to a crop code list to determine your crop code(s). Write in the 3-digit code corresponding to each soil sample, up to 4 codes per sample. Homeowners use codes listed under Square Footage Recommendations. For vegetable gardens, use code 090. Crops to be Grown: Write out the crops you are growing for each soil sample Standard Soil Test - Incudes pH buffer pH lime requirement and extractable P, K, Mg, Ca, Zn, Mn, Cu, B, Na, CEC, and % Base 171 Old Cherry Road / Clemson, SC 29634 . Phone: 864-656-2068 Fax: 864-656-2069 . Lab Number Grower Sample ID Soil Code Crop Code Crops to be Grow Plant Tissue: Enter crop codes. One form can be used for 15 samples. Soil: Enter soil and crop codes. One form can be used for 8 samples. Analyses: Check the appropriate box(es) for the analyses desired. Write in the fee for that sample. (The fees will be carried out automatically if using the computer to enter information. Soil pH: Soil pH is a measure of how acidic or alkaline your soil is. Soil pH directly affects nutrient availability. The pH scale ranges from 0 to 14, with 7 as neutral. Numbers less than 7 indicate acidity, while numbers greater than 7 indicate an alkaline soil. Plants thrive best in different soil pH ranges

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Clemson Cooperative Extension | 103 Barre Hall Clemson, SC 29634 864-986-4310 | 1-888-656-9988 (SC residents only) | Contact Us HGIC@clemson.edu Pin It on Pinteres The Clemson University Undergraduate and Graduate catalogs are published annually by the Registrar's Office. The catalogs give a general description of Clemson University and provide prospective and current students with detailed information about university policies, procedures and requirements; the various colleges and departments within the University; and the majors, minors, certificates.


Clemson University TigerPrints All Theses Theses 5-2016 Evaluation of an Inexpensive Sensor to Measure Soil Color the soil color chart by converting the Nix Pro values to Munsell soil color codes using BabelColor conversion software. Thirty-one Cecil (Fine, kaolinitic, thermic Typi Analysis completed by Clemson University. TABULAR SERIES DATA: SOI-5 Soil Name Slope Airtemp FrFr/Seas Precip Elevation SC0125 NOBOCO 0-6 57-70 190-245 35-55 25-45 Instructions for completing soil sample information sheet Up to 4 soil samples from one grower may be entered on this form. County of origin and billing county codes These codes are needed for proper mailing of results and billing. Codes are assigned to each county extension office. Account Number, Firm and Outle

Sensor measurements were compared to the soil color chart by converting the Nix Pro values to Munsell soil color codes using BabelColor conversion software. Thirty-one Cecil (Fine, kaolinitic, thermic Typic Kanhapludults) soil samples were collected and tested for color In this workshop, Dr. Dara Park, Clemson University soil expert, introduces participants to soil fundamentals. Topics covered are texture, structure, soil biology, and water movement. We will review how soils influence plant communities and each other. Participants will learn how to use the Web Soil Survey. Learn how water resources influence soil structure and plant health. We will examine a. According to Todd Steadman, the director of planning and codes for the city of Clemson, there is a crack in the foundation of the building that would indicate there is moisture or settling of soil. to raise the soil­test P level by 1 ppm (2lb/acre), and 8 lb K. 2. O/acre are neededto raise the soil­test K level by 1 ppm.Fertilizer and lime recom­ mendationsare also based on crop rotations,soil texture, plant variety andyield goal when appropriate. NutrientAvailabilityIndex. Theconcentrationsof soil nutrientsappear in the. Nutrient.

Soil Codes Public Clemson University, South Carolin

Geoff Zehnder 20130916 First Cut - Dr. Geoff Zhender, Clemson University, explains how microorganisms in healthy soils protect some plants from disease. The Science of Soil Health: Changing The Way We Think About - Dr. Kris Nichols, describes how many other soil microorganisms in the soil are also beneficial for crops tional Soil Judging Contest on 11 Aug. 2018 in Seropédica Georgianna Scott, is a recent graduate from Clemson Uni-versity. She began soil judging last fall with the intent of fulfilling a course requirement. Scott never imagined how far her success would take her! Post your positions online using this 25% discount code: BALTIMORE18. City of Clemson South Carolina. 1) Prior to arriving at the community-testing site, you must register and obtain a COVID-19 testing QR code.To do this, visit www.cityofclemson.org and click on the blue Community COVID-19 Testing Registration button on the top left of the page. Follow the instructions on how to register and obtain a COVID-19 Community testing QR Code (9) NOTE: Technical assistance can be obtained from the U.S. Department of Soil Conservation District Office or Clemson Extension Office in York, South Carolina. (Q) Roadway clearance. Construction shall be limited to between the road right-of-way and the road itself, drainage features and related items Maximum likelihood principle and its application in soil liquefaction assessment (Clemson University, 01/2014 - 06/2014) Developed probabilistic methodologies and codes for applying the maximum likelihood principles to probabilistic liquefaction assessments. Prepared a book chapter

When to Plant Vegetables in Clemson Univ, SC. Cole crops like broccoli, cauliflower, and cabbage can be direct seeded into your garden around February 21, assuming the ground can be worked, but it's better to start them indoors around January 24 and then transplant them into the garden around March 14. Do the same with lettuce and spinach Clemson University, Clemson, SC. Progress 01/01/02 to 12/31/02 Outputs A model, MACRO (Jarvis), was evaluated for short-termed simulation of water flow and Cl or Br transport in three soils (Maury in Central KY, Cecil in the Piedmont of SC and Lakeland in the Sandhills of SC) with contrasting soil structure 4900. Fund Agency Code: 4900. CFDA Number (s): 47.041. ABSTRACT. Relatively little is known about the liquefaction resistance of aged soils compared to what is known of young soils. One reason why aged (older than 10,000 years) soils have not been studied much is that they are often incorrectly assumed to be non-susceptible to liquefaction As our numbers show in 2021 average cost that homeowners paid for soil delivery in Pickens county is between $228.00 and $1,372.00. This Topsoil, Sand and Fill Dirt Delivery Clemson Quote Includes: Average labor costs to deliver soil, mulch or rocks in Clemson, South Carolina Shop Topsoil Shop Online Now! The UK's No.1 Topsoil & Soil Improvers Distributo

Crop Codes for Soil Samples - Clemson Universit

  1. in biosphere codes to reduce uncertainties in food chain'pathway dose assessments. In addition, Background-Subtracted XRD Pattern for Clemson University Site Soil Sample .2-20 3.1. Crop availability in South Carolina by Month.. 3-12 vfi. List of Tables Table 2.1.'' Tables and Figures Containing the Results of the Analyses and.
  2. es all dimensions at once was found to be quick and reliable. Finally, the wheel and soil models were integrated into one finite element model in the commercial code, Abaqus™, and three small studies wer
  3. The unsaturated soil mechanics is one of the emerging fields that require extensive studies to understand its behavior under various loading and environmental conditions. Unsaturated soil consists of three bulk phases: solid, liquid and gas and three interfaces: solid-liquid, liquid-gas and gas-solid. It is generally accepted that the interaction among various bulk phases and interfaces has to.
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Keys to Soil Taxonomy. Keys to Soil Taxonomy, Twelfth Edition (2014) (PDF; 3.87 MB) Errata - Issued May 15, 2014 (PDF; 192 KB). Recommended citation: Soil Survey Staff. 2014.Keys to Soil Taxonomy, 12th ed. USDA-Natural Resources Conservation Service, Washington, DC. Summary of changes to Keys to Soil Taxonomy (DOC; 134 KB). Previous versions of Keys to Soil Taxonom In this article we are going to break down the soil test reports from the Penn State Agricultural Analytical Services Laboratory (Image 1 and 2). In images 1 and 2, the soil tests are broken into four sections. Image 1. Soil test report broken into four sections with recommendations for corn grain, corn silage, and planting alfalfa-grass. Image 2 Soil test kits are available free at the Bernalillo County Extension Office, 1510 Menaul Blvd Ext NW, Albuquerque, NM 87107, 505-243-1386. The laboratory test itself costs about $35.00. During COVID-19 restrictions the office door may be locked. Call ahead if you wish to pick up a test kit and then call again when you arrive Downstate, toward the coast, South Carolina soil changes. Still deep in spots, the plains' underlying geology leaves soil shallow in other areas. Central soil can be light and sandy, heavy with clay or a garden-perfect combination of sandy loam. Well-draining, central-region soils are prime land for gardening and farming

Project Methods Objective 1: In collaboration with personnel from the Natural Resources Conservation Service and the South Carolina Department of Health and Environmental Control, at least 15 soils in South Carolina will be selected. These soils will include those with large acreage and those known to have had significant drainline failures. At each location, a pit at least 5-feet deep will be. Keep soil mix temp. 80-90°F (27-32°C) for fast germination. Thin to one plant per pot/cell. Transplant 12-18 apart in rows 3' apart. Do not disturb roots. Use row cover for added warmth to plants and soil. DIRECT SEEDING: After frost danger, sow 2 apart, 1/2 deep when soil is warm - at least 70°F (21°C) SECTION 46-7-30. Experimental stations for farm demonstration work. (A) The board of trustees of Clemson University may establish and operate two or more experimental stations, as in its judgment the funds of the University justify, for testing soil and climatic and other conditions and farm demonstration work Soil tests provide more helpful information on soils than any other resource. It is an inexpensive way to maintain good plant health in lawns and landscapes, and to maximize productivity of vegetable gardens and fruit crops. Soil test results pinpoint plant nutrient needs and soil test lab recommendations guide fertilizer applications so just the right amount is used Soil samples and other agronomic testing helps farmers and homeowners fine-tune nutrient applications and prevent overuse of fertilizers

Accordingly, this list designates the following four primary CIP series at the 2 -digit CIP code level: Engineering (14), Biological and Biomedical Sciences (26), Mathematics and Statistics (27) and Physical Sciences (40). Any new additions to those areas will automatically be included on this STEM Designated Degree Program List My Roof has a Green Thumb. When looking for flora and fauna in a city, it may be a good idea to look up. In urban landscapes, placing gardens on rooftops is a growing trend. Even Clemson University's campus hosts two green roofs, on Lee III and the Watt Family Innovation Center. A green roof is one covered with soil and plants that are. This code works with a Global Positioning System (GPS) to guide the robot. UGVs are powered by 24V batteries, and has a power distribution of 5V, 12V and 24V on the unit. Depending on the payload, these machines can travel at a rate of about 2 miles per hour for about 2-3 hours before needing a recharge

Nix Pro: A Commercial Sensor For Soil Color Determination (2018-050) Agriculture. Clemson researchers have developed a more precise, accurate, and objective tool called the Nix Pro to successfully measure soil color in a variety of color codes, with smartphone applications School Name (currently attending or most recent institution) School Code. Please select one area of academic interest: Undecided Accounting Agribusiness Agricultural Biotech Agricultural Education Agricultural Mechanization and Business Agriculture - Undeclared Agronomy American Sign Language Animal and Veterinary Science Anthropology. The Soil Science Society of America (SSSA) has named Dr. Samira Daroub with the UF/IFAS soil and water sciences department (SWSD) as an SSSA Fellow. Daroub is a professor of soil and environmental chemistry, the distance education coordinator for the SWSD, and acting center director at the Everglades Research and Education Center in Belle Glade. Clemson University. Course Search. Search. Learn new personal and professional skills online in Greenville, SC! Welcome to our Online Instruction Center. We offer a wide range of highly interactive courses that you can take entirely over the Internet. All of our courses are led by expert instructors, many of whom are nationally known authors Clemson Extension agents provide updates in the The South Carolina Grower this week about the status of various crops being produced throughout the state.. Weekly Field Update 7-19-21. Statewide. Dr. Tony Keinath's remarks on fungicide stewardship:. Growers who are applying newer fungicides that are pre-mixes of two active ingredients do not need to add another fungicide to the tank mix

Soil Testing Public Clemson University, South Carolin

  1. Discover the best homework help resource for FNR at Clemson University. Find FNR study guides, notes, and practice tests for Clemson University
  2. 3. Take samples in gardens, lawns, and around shrubs to a depth of about 4 inches and for mature fruit trees at a depth of 12 inches. 4. Mix soil thoroughly from a sample area. Keep different areas separate. Discard rocks, gravels and roots. 5. Allow the soil sample to air dry. Spread the sample on newspapers or large paper bags for a couple of.
  3. May 21st 2021 - Tuscaloosa Troy vs Clemson DI Softball Game Summary - May 21st, 2021 | NCAA.com 2021 Division I Softball Championship - Regional

How to Complete a Soil Form for - Clemson Universit

  1. Genus: Abelmoschus Species: esculentus Variety: Clemson Spineless 80 Item Form: (P) Pkt of 125 seeds Days to Maturity: 56 Fruit Color: Green Seeds Per Pack: 125 Additional Characteristics: Direct Sow, Edible, Award Winner Light Requirements: Full Sun Moisture Requirements: Moist, well-drained Resistance: Disease Resistant, Pest Resistant Soil Tolerance: Cla
  2. Fees and Forms. The routine soil test is all one normally needs for a fertility evaluation. Soil samples are analyzed and computer recommendations generated usually within 3 working days of receipt. Laboratory reports are emailed directly back to you and are also available from your local Extension office, which can provide additional.
  3. The Richland Soil and Water Conservation District's (SWCD's) Seed Sanctuary provides vegetable, herb, and wildflower seeds to Richland County residents via US Mail at no cost. Richland County residents may complete a request form , and a selection of four (4) free seed packets will be mailed to them
  4. ‪Clemson University‬ - ‪‪Cited by 60‬‬ - ‪Chemistry‬ Adsorption properties of tropical soils from Awka North Anambra Nigeria for lead and cadmium ions from aqueous media. C Umeh, JN Asegbeloyin, KG Akpomie, EE Oyeka, AE Ochonogor. Chemistry Africa 3 (1), 199-210, 2020. 12: 2020

  1. They contain technical information about the conservation of soil, water, air, and related plant and animal resources. Technical guides used in each field office are localized so that they apply specifically to the geographic area for which they are prepared. These documents are referred to as Field Office Technical Guides (FOTGs)
  2. (f) Soil areas beneath attached concrete slabs (earth-fill porches, patios, carports, garages, walkways, etc.) which are less than 18 (eighteen) inches below the sill or plate line of the structure must be treated by one of the following methods: (1) By cutting access openings and removing soil adjacent to the foundation and below the expansion.
  3. PDF Company/Brand Variety Yield (bu/A) Test Weight (lb/bu) Clemson SCLA 0100214 146.3 37.3 Clemson Graham 143.5 37.4 NCSU NC15-4180 139.1 37.3 Gerard Seed Gerard 224 138.6 37.3 NCSU NC12-3578 138.0 38.4 NCSU NC17-6563 135.3 37.2 NCSU NC12-3922 134.4 38.2 NCSU NC12-3753 133.1 39.3 Gerard Seed Gerard 227 129.6 37.6 Clemson SCOP 86-4 128.4 38.5 NCSU NC17-6485 126.5 39.2 Plantation Seed Horizon.
  4. Clemson Spineless 80 Okra is the most popular okra found in home gardens and markets and an All American Selections winner for a reason! This high yielding plant produces dark green, grooved pods that stay spineless and non-woody. Clemson Spineless grows to 4' tall and pods are most tender and flavorful when harvested at 3-4
  5. e distribution of selected Phytophthora species in eastern U.S. forest ecosystems, develop baiting techniques for recovering Phytophthora species from soil, and refine methods for identifying unknown Phytophthora species
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How to Complete Forms Public Clemson University, South

The soil in the middle of the hole should be loose so that the roots can establish themselves in a new environment. You could add fertilizer to the spot, but it is not mandatory. Step 3: Remove the plant from the container and carefully place it in the hole. Fill out any gaps with dirt and continue to firm the soil around the rose Clemson today has 26,000 students, and is in high demand: Applications skyrocketed from 27,926 in March 2020 to 45,406 in March 2021, even as college applications across the nation trended down. Clemson is the No. 29 public university in the nation with $219 million in total research expenditures, and one of only six official Carnegie R1. Planting calendars are designed to calculate the best time to start seeds and plant a garden. Timing for all planting is based on first and last frost dates. For example, if planting in hardiness zone 5, the last frost date is generally between April 1st - April 15th, and the first frost date typically falls between October 16th - October. This Clemson Brush Clearing Service Estimate Does NOT Include: Any permits required for brush clearing service Clemson projects. Inspection and/or Clemson building fees. Materials and supply Pickens and South Carolina sales taxes. Materials and supply Clemson sales taxes. Any general contractor fees, if used for the project The cost to replumb a mobile home in Clemson is a small price to pay when you think about how beneficial it is to have done. Addressing the water leak under mobile homes is exceptionally important because the excess water can cause the soil to shift and put people at risk when in the mobile home. Surrounding ZIP Codes. 29672. Top Mobile.

Photo courtesy of Clemson University Department of Entomology, Soils & Plant Sciences, Cooperative Extension Service. Sort by. Per Page: NemAttack™ & NemaSeek™ Combo Pack Sc/Hb. $60.00-$500.00 Triple Threat Beneficial Nematodes - Sf, Sc, Hb. $61.00-$700.00. For more information on the Richland County Master Gardener Volunteer program, send an e-mail with name, address, phone, etc. to villard.1@osu.edu , or contact the Richland County OSU Extension office, 1495 W. Longview Ave., Suite 206, Mansfield, OH 44906. Phone: 419-747-8755 Importantly the wildlife values such as pollinators and invasive plants and alternatives will be covered.Pre-requisite: Basic Botany This is a zoom class. Lectures will be interactive with screen share. Zoom link will be sent April 23. Last Day to Register- April 7 Contact Sue Watts, watts9@clemson.edu with issues and to request discount code February 16, 2021 (Tuesday) 10:00am-11:30am, Online Workshop: Traveling again via Google Earth with Dr. Bill Stringer, Professor Emeritus of Agronomy and Soils: Sometime back, Bill was pining for the pre-COVID19 days when you could buy an airline ticket, dig out your passport, and head out to another continent. Then he spotted the Google Earth icon on his desktop, and hit upon an idea: virtual. codes and standards for allowable limits. For pipelines at road/railway/water crossings, or any other locations with external loads other than soil, please refer to other tools available in our website. Stress Analysis - Buried Line Pipe Stress Analysis of Buried Pipes. Pipelines are a safe and reliable mode of transportation for liquid and gas.

Clemson University Job ID:105861 Location:Baruch Forest Sci Institute Full/Part Time:Full-Time Regular/Temporary:Temporary - Time Limited JOB SUMMARY: This position is for a staff postdoctoral research associate, as funded by the Vice President for Research's Office (CU Research Fellows), to work with Dr. Tom O'Halloran and collaborators at Clemon's Baruch Institute Soil Science. Delivered online. Courses include lecture videos, activities and other media, accessed from NC State's WolfWare website. Using online communication tools, students in these courses interact extensively with both the instructor and their peers. More about our course formats. The Undergraduate Certificate in Soil Science offers an. Copies of industry codes and standards used in a substantive manner in the NRC regulatory process are 2.3 Background-Subtracted XRD Pattern for Clemson University Site Soil Sample. Journal of Soil Dynamics and Earthquake Engineering, 90, pp. 227-239 Kyser, D. and Ravichandran, N . (2016) Properties of chipped rubber roofing membrane and sand mixtures for civil engineering applications, ASCE Journal of Building Engineering, 7, 103-11

Soil Testing Home & Garden Information Cente

Tomato - Home & Garden Information Center Clemson

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Clemson University | College of Engineering, Computing and Applied Sciences | Glenn Department of Civil Engineering Dr. Ravi Ravichandran | 202 Lowry Hall, Clemson, SC 29634 | Phone: (864) 656-2818| Fax: (864) 656-2670. Proudly powered by WordPres Discover how and why native plants have the potential to transform traditional horticultural practices with landscape architect Jon Fritz of Bluestem Landscape and Design. Subjects include what is native, the importance of soil, basics of plant health, methods of planting and maintaining native plants, and eco-friendly horticulture practices. Learn how to attract beneficial wildlife like birds. 114 Earle is a short walk from the Clemson campus and offers units that range from studio apartments up to five bedrooms, according to its website . The one-bedroom studio apartments are listed at.

Soil Surveys by State NRCS Soil

The 2021 Virtual South Carolina Master Gardener Training Class will begin on Wednesday, January 13, 2021. Classes will meet online each Wednesday morning from 9:00 AM to 12:30 PM for 16 weeks. Chat help will be available each week from 8:30-9:00 AM. The final exam will be on April 28, 2021. Due to the popularity of the South Carolina Master. Bama, Clemson top college football win totals. Alabama and Clemson both were installed with season win totals of 11.5 by Caesars Sportsbook by William Hill, which posted totals for each FBS team. Soil sample boxes and forms are at your local county MSU Extension office. Each county in Mississippi has an Extension office, so there is one near you! Take the soil sample (s) to your local Extension office or mail them directly to the MSU Soil Testing Lab at P.O. Box 9610, Mississippi State, MS 39762. Include payment with your sample ($8 per.

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In the absence of a soil test report, Clemson University recommends applying a 5-10-10 type fertilizer at a rate of 3 pounds per 100 square feet. A repeat side-dressing using a high nitrogen. Virginia has an innovative tax credit program for the purchase of satellite-guided farm nutrient and pesticide application equipment for prescriptive placement of these materials. Recipients of the 25% tax credit must purchase equipment meeting state specifications and develop a nutrient management plan for their farm operations Researchers at Clemson who investigated this phenomenon discovered through sophisticated testing, that the extract did indeed cause rapid plant growth. They believe it's because many of the trace minerals in this special kelp have important regulatory functions when applied to land plants

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Evaluation of an Inexpensive Sensor to Measure Soil Colo

Interested in understanding a soil sample test report? Want a virtual tour of the soils lab in Clemson University? Join us on August 2nd from 3-5pm for a virtual tour of the Clemson University.. Take-all root rot is a fungal disease that causes weak, brown, dead patches in turfgrass. In Texas, the disease severely affects St. Augustinegrass (Fig. 1) and bermudagrass (Fig. 2), in which the disease is known as bermudagrass decline. Take-all root rot is caused by a fungus, Gaeumannomyces graminis var. graminis, that lives in the soil

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Soil: Gladiolus like well-drained, sandy loam soil. The corms will rot if the soil is too heavy and wet. If you have clay soil, grow in raised beds and loosen the soil to 12 inches deep before planting. Spacing: Space gladiolus corms 6 to 10 inches apart in the garden and plant corms 2 to 6 inches deep depending upon the size of the corm (plant. The Home and Garden Information Center (HGIC) develops and delivers science-based, sustainable gardening and integrated pest management education for better human and environmental health. The Home and Garden Information Center partners with the Master Gardener Program to provide educational resources to the volunteers as well as digital.

Evaluation of an Inexpensive Sensor to Measure Soil Color

If they are properly cared for, they can grow an average of 2 1/2 feet per year, according to Clemson University. Live oaks grow fastest in sunny coastal areas in sandy, well-drained soil. As the trees get older, their growth slows. These large trees can have a trunk diameter of up to 6 feet and can live for 300 years or longer Clemson Equivalent Course Clemson Course Title ; GER 201 : GER 2010 : Intermediate German : GER 202 : GER 2020 : Intermediate German : HIS 101 : HIST 1720 : West & the World I : HIS 102 : HIST 1730 : West & the World II : HIS 104 : HIST 1999 : Transfer Elective : HIS 105 : HIST 1930 : Modern World History : HIS 112 : ELEC 0001 : Transfer. Tri-County Technical College 864-646-TCTC (8282) Toll-free within 864 area code: 1-866-269-5677 Post Office Box 587 Pendleton, SC 2967 Purpose of Soil Sampling: To accurately determine nematode species, population distributions and densities in a specific area. Factors Influencing Distribution and Density: Time of year, previous crop, soil texture, soil moisture, and nematode management practices used. If nematodes are present, distribution is generally patchy in a field. Best Time to Collect Soil Samples: Guidelines vary.