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Hardpan
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21	Australian soils and landscapes PO5: Silpanic, Humic, Semiaquic Podosol m General description of the soil Add to Reading List Source URL: www.asris.csiro.au Language: English - Date: 2005-10-25 01:57:56 Podzol Hardpan Humic acid Pedology Soil science Soil
22	Revegetation site-preparation Add to Reading List Source URL: www.dpaw.wa.gov.au Language: English - Date: 2014-07-09 03:27:33 Land use Pedology Agricultural machinery Hardpan Plough Soil structure Waterlogging Soil Land management Agriculture
23	Microsoft Word - 12_SOILS.doc Add to Reading List Source URL: www.placer.ca.gov Language: English - Date: 2014-01-10 14:23:34 Soil in the United States San Joaquin Soil Loam Hardpan Menfro Bama Soil science Pedology Physical geography
24	A GUIDE TO BETTER SOIL STRUCTURE National Soil Resources Institute BACKGROUND With increasing agricultural and horticultural intensity, Add to Reading List Source URL: www.soil-net.com Language: English - Date: 2002-07-26 07:44:00 Land management Agricultural soil science Agricultural machinery Ped Tillage Seedbed Hardpan Plough Tilth Agriculture Soil science Soil
25	Project WILD Science and Civics Correlated to California Content Standards in Science Chemistry: Acids and Bases 5. Acids, bases, and salts are three classes of compounds that form ions in water solutions. As a basis f Add to Reading List Source URL: www.projectwild.org Language: English - Date: 2014-09-18 11:48:57 Systems ecology Land management Soil Hardpan Ecosystem Ecology Participatory democracy Democracy Ecological succession Biology Terminology Science
26	News & Notes of the UCSC Farm & Garden Issue 113, Spring[removed]Forrest Cook Add to Reading List Source URL: casfs.ucsc.edu Language: English - Date: 2014-08-30 10:50:33 Soil Sustainable agriculture Agricultural soil science Agroecology Tilth Ped Tillage Hardpan Seedbed Agriculture Land management Land use
27	Tropical Horticulture © 2002 Jules Janick, Purdue University Reading 5 Soil Soil is different things to different people. To most of us it is something to be washed from clothes and swept out the door. To the geologist Add to Reading List Source URL: www.hort.purdue.edu Language: English - Date: 2008-08-11 11:54:00 Land use Humus Fertility Ped Organic matter Hardpan Hydroponics Soil carbon Soil biodiversity Soil Land management Agriculture
28	BB Logo Oval (Blk) 80% Bord Add to Reading List Source URL: www.bighambrothers.com Language: English - Date: 2009-09-30 11:47:30 Plough Coulter Tractor Screw Slaton Texas Hardpan Land management Agricultural machinery Technology Agriculture
29	Microsoft Word - B&B #41 - gypsum.doc Add to Reading List Source URL: puyallup.wsu.edu Language: English - Date: 2008-02-20 15:44:12 Chemistry Sulfate minerals Land reclamation Gypsum Sodic soil Fertility Alkali soils Hardpan Soil science Soil Land management
30	When to Amend? Construction Sequencing for Soil Protection and Restoration The goal: healthy soil under every landscape Washington State DOE’s stormwater BMP T5.13 “Post Construction Soil Quality and Depth” require Add to Reading List Source URL: www.buildingsoil.org Language: English - Date: 2008-02-01 11:11:15 Soil Organic gardening Sustainable gardening Organic farming Hardpan Topsoil Compost Uses of compost Mulch Agriculture Land management Landscape architecture

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