|
| |
| | Soil - Wikipedia, the free encyclopedia |
 | | Soils are vital to all life on Earth because they support the growth of plants, which supply food and oxygen and absorb carbon dioxide and nitrogen. |  | | Both water and air components of soils are important to plant growth and other life in the soil profile of a particular ecosystem. |  | | Human actions also can degrade soils through the depletion of nutrients, pollution, contamination, and compaction, and by increasing the rate of erosion, which is the relocation of soil through the movement of water or wind. |
|
http://en.wikipedia.org/wiki/Soil
(1244 words)
|
|
| |
| | MSN Encarta - Soil |
 | | Soil science plays a key role in agriculture, helping farmers to select and support the crops on their land and to maintain fertile, healthy ground for planting. |  | | Without soil there would be no vegetation—no crops for food, no forests, flowers, or grasslands. |  | | Soils comprise a mixture of inorganic and organic components: minerals, air, water, and plant and animal material. |
|
http://encarta.msn.com/encnet/refpages/RefArticle.aspx?refid=761576446
(973 words)
|
|
| |
| | Soil |
 | | Thus, nutrients in the soil are used by plants and animals and are returned to the soil when they die and rot. |  | | Soils which have approximately equal proportions of sand and clay are called loams and are best for plant growth because they contain enough air and can hold moisture. |  | | Clay soils have a large proportion of the smallest particles and are the least suitable for plant growth. |
|
http://www.botany.uwc.ac.za/Envfacts/facts/soil.htm
(789 words)
|
|
| |
| | Sabine Grunwald |
 | | Dark-colored soils of the semiarid, arid, subhumid, and humid grasslands |  | | When soil moisture is high, as in wet or humid climates, there is a net downward movement of water in the soil for most of the year, which usually results in greater leaching of soluble materials, sometimes out of the soil entirely, and the translocation of clay particles from upper to lower horizons. |  | | Soil texture influences the soil moisture content, where assumed the same climatic conditions, sandy soils have the tendency for low soil moisture content, silty soils for average soil moisture contents, and clayey soils for high soil moisture contents. |
|
http://grunwald.ifas.ufl.edu/Nat_resources/soil_forming_factors/formation.htm
(4269 words)
|
|
| |
| | SOIL |
 | | Soils vary with topography primarily because of the influence of moisture and erosion. |  | | Living animals such as moles, earthworms, bacteria, fungi and nematodes are all busy moving through or digesting food found in the soil. |  | | The first or top 48 inches of these horizons and its' unique set of characteristic is used by soil scientist to classify and name a soil. |
|
http://www.cjnetworks.com/~sccdistrict/soilpro.htm
(612 words)
|
|
| |
| | Understanding the Soil |
 | | Diseases of plants are diseases of the soil. |  | | Also each cultivated plant takes nutrients from the soil, as soon as the crops are harvested. |  | | The porosity is lost and with it the ability of the soil to retain air, water and nutrients. |
|
http://www.rain.org/~sals/Petrik.html
(2804 words)
|
|
| |
| | Improving Soils For Vegetable Gardening, HYG-1602-92 |
 | | Such soils will be loose and fluffy in the spring as a result of the conditioning effect of freezing and thawing that takes place in the winter. |  | | Garden soils benefit by being protected by a winter crop such as rye or ryegrass (or winter barley in southern Ohio). |  | | Soil conditioners act to improve soil aeration, drainage, moisture-holding capacity and tilth, or workability, of the soil. |
|
http://ohioline.osu.edu/hyg-fact/1000/1602.html
(1021 words)
|
|
| |
| | soil-inhabiting nematodes - Phylum Nematoda |
 | | Juvenile or other stages of animal and insect parasites may also be found in soil. |  | | Soil nematode populations and root biomass on Cynomys ludovicianus colonies and adjacent uncolonized areas. |  | | The mouthpart is a needlelike stylet which is used to puncture cells during feeding. |
|
http://creatures.ifas.ufl.edu/nematode/soil_nematode.htm
(1082 words)
|
|
| |
| | Improving Soil |
 | | I always shovel the soil into large plastic pots or a wheelbarrow to make it easier to mix the soil, and the soil isn’t lost into the grass or mulch. |  | | Mix soil amendments evenly with the soil from the hole. |  | | Soil amendments are spread in the hole and worked into the lower eight inches. |
|
http://www.rodsgarden.50megs.com/improvingsoil.htm
(2365 words)
|
|
| |
| | Canyonlands National Park - Natural Resources |
 | | Soil crusts have other functions as well, including an ability to intercept and store water, nutrients and organic matter that might otherwise be unavailable to plants. |  | | Damage done to the sheath material, and the accompanying loss of soil nutrients, is repaired slowly during up to 50 years of cyanobacterial growth. |  | | In this way, loose soil particles are joined together, and an otherwise unstable surface becomes very resistant to both wind and water erosion. |
|
http://www.nps.gov/cany/nature/soils.htm
(470 words)
|
|
| |
| | Soil Erosion |
 | | On commercial farm lands, overstocking, mono-cropping, and the ploughing of marginal lands unsuitable for cultivation has led to soil erosion and desertification. |  | | * making sure that there are always plants growing on the soil, and that the soil is rich in humus (decaying plant and animal remains). |  | | Once this nutrient-rich layer of soil is gone, few plants will grow in the soil again. |
|
http://www.botany.uwc.ac.za/Envfacts/facts/erosion.htm
(773 words)
|
|
| |
| | Soil |
 | | Most soils have sufficient micronutrients for plant growth, so a micronutrient fertilizer is generally not needed for crops or gardening. |  | | The inorganic soil particles of a size to interact with plant roots are sand, silt, and clay. |  | | Horse manure is considered the premier soil texture improver in the arsenal of the organic farmer. |
|
http://koning.ecsu.ctstateu.edu/Plants_Human/soil.html
(6538 words)
|
|
| |
| | - Soil - Aaron’s Home and Garden |
 | | Soil is usually divided as follows: Ground level, top soil, subsoil, weathered parent material and bedrock. |  | | Through erosion bedrock finally breaks down to compose a weathered parent material, but when found in the deepest chasms of soil, it is where soil stops or rather, is born, as it is just solid rock, the basis of all soil. |  | | Subsoil is a place where less and less organic matter can be found as it is usually filled with mineral particles as well as containing the highest amount of soil nutrients. |
|
http://www.home2garden.org/soil.html
(453 words)
|
|
| |
| | Great Plant Escape - Four Major Components of Soil |
 | | Soil must provide nutrients, water, and air and helps to support the plant. |  | | One part of soil is rock that has been broken down over time by wind, water, and chemical processes. |  | | It is made up of decaying plant and animal matter. |
|
http://www.urbanext.uiuc.edu/gpe/case2/c2facts1.html
(144 words)
|
|
| |
| | The Open Door Web Site : Biology : Soil |
 | | Soil crumbs are rich in minerals and they improve the drainage of the soil. |  | | Plants need soil for growth because the soil gives them not only water but also minerals, such as calcium or iron. |  | | Loam is a fertile soil, providing plants roots with water, air and minerals. |
|
http://www.saburchill.com/chapters/chap0057.html
(308 words)
|
|
| |
| | EPA/GMPO:What on Earth is Soil? |
 | | Soil is formed from rocks and decaying plants and animals. |  | | Mice take seeds and other plant materials into underground burrows, where this material eventually decays and becomes part of the soil. |  | | Roots loosen the soil, allowing oxygen to penetrate. |
|
http://www.epa.gov/gmpo/edresources/soil.html
(235 words)
|
|
| |
| | EUROPA - Environment - Soil Protection Policy |
 | | Soil- the interface between the earth, the air and the water- is a non-renewable resource performing many functions vital to life: food and other biomass production, storage, filtration and transformation of many substances including water, carbon, nitrogen. |  | | Soil is an extremely complex, variable and living medium. |  | | In an earlier communication “Towards a Thematic Strategy for Soil Protection”, the Commission identified eight threats to soil, namely: erosion, decline in organic matter, local and diffuse contamination, sealing, compaction, decline in biodiversity, salinisation and landslides. |
|
http://europa.eu.int/comm/environment/soil
(714 words)
|
|
| |
| | Soil - Wikiquote |
 | | “...soil is alive and is composed of living and nonliving components, having many interactions. |  | | It is a part of the larger unit, the terrestrial ecosystem, that soil must be studied and conserved....we must remember that the biota have been involved in [the soil system=s] creation, as well as adapting to life within it.” ~ (1996) D.C. Coleman and D. Crossley, Jr. |  | | Terms used in lieu of soil include terra, dirt, and, as applicable, land and ground. |
|
http://en.wikiquote.org/wiki/Soil
(1685 words)
|
|
| |
| | Soil - EnchantedLearning.com |
 | | It is made up mostly of sand and silt, having lost most of its minerals and clay as water drips through the soil (in the process of eluviation). |  | | The kind of soil in an area helps determines what type of plants can grow. |  | | Organic matter decays and mixes with inorganic material (rock particles, minerals and water) to form soil. |
|
http://www.enchantedlearning.com/geology/soil
(420 words)
|
|
| |
| | Encyclopedia of Soil Science |
 | | Thematic topics dealing with soil management address numerous challenges including soil structure, tillage methods and mulch farming, irrigation, drainage and water table management, fertilizer and nutrient management, erosion control, and management of soil organic matter. |  | | To enhance soil's capacity to perform these functions, it is important to understand factors and processes affecting soil quality under growing and conflicting modes of land uses (e.g., agricultural, forestry, urban, industrial, military, aesthetic and cultural). |  | | Provides complete information on chemistry, analysis, and evaluation of soils and geography and focuses on agriculture development in the third world, particularly through research on sustainable management of natural resources, soil productivity and environmental quality. |
|
http://www.dekker.com/sdek/issues~db=enc~content=t713172977
(772 words)
|
|
| |
| | DiscoverySchool.com |
 | | This is the layer where most of the soil's nutrients are found. |  | | Think of soil as a thin living skin that covers the land. |  | | Topsoil: Plants grow and animals live on top of the soil. |
|
http://school.discovery.com/schooladventures/soil/down_dirty.html
(343 words)
|
|
| |
| | Soil |
 | | Using a paper towel to remove water from soil, students determine that water is one of the four ingredients in the soil. |  | | Biological soil crusts -- also known as cryptogamic, microbiotic, cryptobiotic, and microphytic crusts, are commonly found in semiarid and arid environments throughout the world. |  | | Microbes in the soil cause the breakdown and decay of dead organisms, a process that in turn adds more nutrients to the soil. |
|
http://www.42explore.com/dirt.htm
(1265 words)
|
|
| |
| | GLOBE Program: How Much Soil Is There? |
 | | The remaining 10% (approximately*)- this small fragment of the land area - represents the soil we depend on for the world's food supply. |
|
http://soil.gsfc.nasa.gov/app_soil/app5.htm
(60 words)
|
|
| |
| | BLM NSTC Soil Biological Communties |
 | | They fertilize the soil, breaking down dead organisms and releasing nutrients for use by living plants. |  | | We need healthy soil to grow food for humans and other animals, and products that we use on a daily basis. |  | | Without healthy soil the landscape would be barren. |
|
http://www.blm.gov/nstc/soil
(469 words)
|
|
| |
| | Pedology (soil Study) Encyclopedia Article @ NaturalResearch.org |
 | | Soil is not only a support for vegetation, but it is also the zone (the 'pedosphere') of numerous interactions between climate (water, air, temperature), soil life (micro-organisms, plants, animals) and its residues, the mineral material of the original and added rock, and its position in the landscape. |  | | Pedology (pědǒ'lōgy), (from Russian: pedologiya, from the Greek pedon = soil, earth), is the study of soils and soil formation. |  | | It is the branch of soil science that deals with soil genesis, morphology, classification and distribution. |
|
http://www.naturalresearch.org/encyclopedia/Pedology_(soil_study)
(395 words)
|
|
| |
| | Soil Safari - an Educational Project on Soil in Berkshire |
 | | It may be that you can only cover part of the material on your first trip and that you will need to return. |  | | Remember, soil is not just a load of dirt! |  | | how different soils are found in different parts of the landscape |
|
http://www.soilsafari.com
(298 words)
|
|
| |
| | Soil Technologies Corporation - Pioneers in Biorationals Since 1983 |
 | | Since 1983 Soil Technologies Corporation has been a pioneer in the development, manufacture and marketing of biorational pest management and plant growth promoting products used in agricultural and horticultural crop production. |  | | Through product development, acquisition and strategic business relationships, Soil Tech has created a unique line of environmentally sensitive products which contribute to the bottom line. |  | | Our continuing commitment to produce only ecologically safe and effective technologies makes Soil Tech an unparalleled resource in today's rapidly changing agronomic world. |
|
http://www.soiltechcorp.com
(88 words)
|
|
| |
| | A Compendium of On-Line Soil Survey Information |
 | | The job of soil survey is to map the distribution of the different soil types, describe these types, and interpret the maps in a form that is useful for land management and ecosystem studies. |  | | NRCS technical references (Soil Survey Manual, Field Guide, Lab Methods, Soil Taxonomy) |  | | The internet revolution has also affected soil survey: information on the institutes that carry out soil surveys, their methods and techniques, soil classification systems, models, and interpretations from all over the World are at your disposal.... |
|
http://www.itc.nl/~rossiter/research/rsrch_ss.html
(705 words)
|
|
| |
| | www.indiaagronet.com - Indian Agricultural Resources - Soil Management |
 | | Information about indian agriculture and indian Soil Management community for specific issues pertaining to indian agriculture. |  | | www.indiaagronet.com - Indian Agricultural Resources - Soil Management |
|
http://www.indiaagronet.com/indiaagronet/soil_management/Soil_mgmt.htm
(24 words)
|
|
| |
| | Soil Foodweb, Inc. |
 | | The lab measuring the life in your soil |  | | We're calling it the Spring Forward Special, because it can help you get a head start on your growing season. |  | | Soil Foodweb Oregon and Soil Foodweb New York have reduced prices on the Total Foodweb testing packages until March 31, 2006. |
|
http://www.soilfoodweb.com
(213 words)
|
|
| |
| | Martian Soil - Daily news on the Planet Mars |
 | | Martian Soil is edited by Joost Schuur, Todd 'Tungsten' Northcutt and Fred Kiesche, powered by Movable Type and hosted by Verve. |  | | Today's Martian Picture of the Day shows dark sand dunes and relatively small, light-toned, windblown ripples on the floor of a crater in central Noachis Terra. |  | | Martian Soil - Daily news on the Planet Mars |
|
http://www.martiansoil.com
(993 words)
|
|
| |
| | Soil Survey Contents NRCS Soils |
 | | Soil Geography small scale digital soil databases for general soil maps (STATSGO), major land resource areas (MLRA), common resource areas (CRA), and other geospatial data layers (gateway). |  | | Online Web Soil Survey - Official USDA soil information as viewable maps and tables for more than 2300 soil surveys. |  | | National Soil Characterization Data - National Soil Laboratory site specific data with search routines. |
|
http://soils.usda.gov/survey
(174 words)
|
|
| |
| | The Dirt on Soil: DiscoverySchool.com |
 | | Yet every plant and animal you can think of depends on this vast hidden ecosystem. |  | | Each shovel of soil holds more living things than all the human beings ever born. |  | | Lots of species are still waiting for scientists to identify and name them. |
|
http://school.discovery.com/schooladventures/soil
(105 words)
|
|
| |
| | Worm your way through these questions! |
 | | How does soil help me keep my cool? |  | | Can we keep the soil from washing and blowing away? |  | | To get in the know about natural resources, you've got to get smart about the soil. |
|
http://www.nrcs.usda.gov/feature/education/squirm/skQstns.html
(42 words)
|
|
| |
| | Soil Management |
 | | CO2 ENRICHED AGRO-ECOSYSTEMS: INFLUENCE OF SPECIES AND TILLAGE ON SOIL CO2 FLUX |  | | SUITABILITY OF 'TROPIC SUN' SUNN HEMP AS AN ALTERNATIVE LEGUME COVER CROP FOR SUMMER GRAIN CROPS IN THE SOUTHEAST |  | | INFLUENCE OF TILLAGE AND WHEEL TRAFFIC ON MICROBIAL BIOMASS, RESIDUE DECOMPOSITION AND EXTRACTABLE NUTRIENTS IN A COASTAL PLAIN SOIL |
|
http://www.nal.usda.gov/ttic/tektran/categoryV3/Soil_Management.html
(462 words)
|
|
| |
| | NRCS Soils |
 | | Soil Data Viewer provides users access to soil interpretations and soil properties while shielding them from the complexity of the soil database. |  | | Version 3.0 of SOILS - Tools for educators is now available on CD-ROM. |  | | These lists show the availability of over 500 soil surveys that are available on CD-ROM. |
|
http://soils.usda.gov
(176 words)
|
|
| |
| | music-reviewer.com - February, 2002 - Soil |
 | | You might not want to listen to Soil more then once at a time, more then that and you risk the possibility of infection, even addiction. |  | | Exploding out of the underground of the Chicago music scene, they soon built a local following that continued to grow as word spread about their off-the-hook live performances. |  | | The album was independently released and SOiL began a tour that covered the US and Canada with bands like Incubus and Stuck Mojo. |
|
http://www.music-reviewer.com/02_02/soil.htm
(762 words)
|
|
| |
| | Soil Science Education Home Page |
 | | Additional support for this w\eb site has been provided by the Soil Science Society of America. |  | | This material is based upon work supported by the National Science Foundation under Grant No. 9801747. |
|
http://soil.gsfc.nasa.gov
(45 words)
|
|
| |
| | Glossary (SSSA) |
 | | Copyright © 2004 by the Soil Science Society of America |  | | elcome to the home page of the Internet Glossary of Soil Science Terms. |  | | ALL RIGHTS RESERVED UNDER THE U.S. Any and all uses beyond the "fair use" provision of the law require written permission from the publisher and/or author(s); not applicable to contributions prepared by officers of employees of the U.S. Government as part of their official duties. |
|
http://www.soils.org/sssagloss/index.html
(114 words)
|
|
| |
| | Soil Science Society of America (SSSA) |
 | | Breathtaking imagery and inspirational quotes about soil will be showcased in the Smithsonian National Museum of Natural History. |  | | Save $100 on WCSS Registration Register by May 1, 2006 and save $100 off registration fees for the World Congress of Soil Science, July 9-15 2006 in Philadelphia, PA. The Congress theme is "Frontiers of Soil Science: Technology and the Information Age." Register today! |  | | Recognizing the common missions of the European Society for Agronomy and ASA-CSSA-SSSA, a cooperative relationship has been established to explore mutually beneficial activities and encourage member awareness of mutual objectives and programs. |
|
http://www.soils.org
(152 words)
|
|
| |
| | www.myspace.com/soil |
 | | Always been a big fan of your music, i know you know a band member of mine, hope to meet ya one day even if its just for a signiture lol!! |  | | SOiL in Columbus Ohio with 10 Years and Volume Dealer! |  | | columbus, OH SOiL's Latest Blog Entry [Subscribe to this Blog] |
|
http://www.myspace.com/soil
(699 words)
|
|
|