1 / 15

Soils Information

Soils Information. http://tiee.ecoed.net/vol/v3/experiments/soil/img/soil.jpg. By: Matt Jakubik. Soil. A. outer layer of earth’s crust, renewable natural resource that supports life --takes 1000 years for 1 inch of soil to form. Function of Soils. Supply Nutrients Supply Water Supply Air

gannon-hardin
Download Presentation

Soils Information

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Soils Information http://tiee.ecoed.net/vol/v3/experiments/soil/img/soil.jpg By: Matt Jakubik

  2. Soil • A. outer layer of earth’s crust, renewable natural resource that supports life • --takes 1000 years for 1 inch of soil to form

  3. Function of Soils • Supply Nutrients • Supply Water • Supply Air • Provides Anchoring

  4. Soil Components • A. Soil is made up of: • 1.   Minerals—45% • 2.   Water—25% (good soil) • 3.   Air—25% • 4.   organic matter—5%

  5. Organic Matter • A. decayed plants and animals • 1.   leaves, roots, stems • 2.   dark in color • 3.   more productive because of increased fertility/nutrients • sources: manure, mulch, peat moss

  6. Water • A. necessary for good soil --permeable: allows water to flow through --leaching: salts, minerals and nutrients washed out of soil

  7. Air • 1.   roots need air to breathe • 2.   soil must have air in pores for plants to grow

  8. Pores • A. spaces between soil particles. B. Filled with air and/or water

  9. Mineral Material • began as rock, undergoes weathering to break down • 1.   Classified according to particle size • a.    sand: largest in size, large pores, water flows through easily, not as fertile, nutrients leach out • b.   silt: mid-sized, good water holding capacity, holds nutrients • C. clay: smallest in size, holds water and nutrients, has poor water drainage and lacks air

  10. Soil Texture • a.    proportions of the 3 particle sizes in a soil • --Landscapers need to know soil texture: • 1.   time to plant • 2.   drainage • 3.   nutrient holding capacity • 4.   plant soil requirements • 5.   easier to work with

  11. Texture • Definition: Percentage of sand, silt and clay particles • Size of particles.(largest to smallest) • Sand • Silt • Clay

  12. Texture • Why is texture Important? • Water absorption rates • Soil water storage capacity • Ease of tillage • Amount of aeration • Soil Fertility

  13. Texture • Determining Soil Texture By Feel • Sand • Coarse gritty feel • Silt • Medium-silty, floury feel • Clay • Fine-sticky when wet

More Related