When.com Web Search

  1. Ads

    related to: organic topsoil for vegetable garden plants chart with photos download

Search results

  1. Results From The WOW.Com Content Network
  2. Topsoil - Wikipedia

    en.wikipedia.org/wiki/Topsoil

    Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients.

  3. Soil organic matter - Wikipedia

    en.wikipedia.org/wiki/Soil_organic_matter

    Soil organic matter (SOM) is the organic matter component of soil, consisting of plant and animal detritus at various stages of decomposition, cells and tissues of soil microbes, and substances that soil microbes synthesize.

  4. Outline of organic gardening and farming - Wikipedia

    en.wikipedia.org/wiki/Outline_of_organic...

    An organic garden on a school campus. The following outline is provided as an overview of and topical guide to organic gardening and farming: . Organic farming – alternative agricultural system that relies on fertilizers of organic origin such as compost, manure, green manure, and bone meal and places emphasis on techniques such as crop rotation and companion planting.

  5. World Reference Base for Soil Resources - Wikipedia

    en.wikipedia.org/wiki/World_Reference_Base_for...

    In the topsoil, we find 20% clay, 10% sand, and 70% silt; in the subsoil, 35% clay, 8% sand, and 57% silt. Organic matter concentrations in the topsoil are intermediate. The naming of the soil consists of four steps. [1] Question 1: Does the soil have diagnostic horizons, properties and materials? The soil has the following diagnostics:

  6. Organic horticulture - Wikipedia

    en.wikipedia.org/wiki/Organic_horticulture

    An organic garden on a school campus. Organic horticulture is the science and art of growing fruits, vegetables, flowers, or ornamental plants by following the essential principles of organic agriculture in soil building and conservation, pest management, and heirloom variety preservation.

  7. Physical properties of soil - Wikipedia

    en.wikipedia.org/wiki/Physical_properties_of_soil

    When the organic component of a soil is substantial, the soil is called organic soil rather than mineral soil. A soil is called organic if: Mineral fraction is 0% clay and organic matter is 20% or more; Mineral fraction is 0% to 50% clay and organic matter is between 20% and 30%; Mineral fraction is 50% or more clay and organic matter 30% or ...

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Potting soil - Wikipedia

    en.wikipedia.org/wiki/Potting_soil

    Potting soil or growing media, also known as potting mix or potting compost (UK), is a substrate used to grow plants in containers. The first recorded use of the term is from an 1861 issue of the American Agriculturist . [ 1 ]