Hamilton County Soil and Water Conservation District
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    • About >
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      • News articles
    • Volunteer Opportunities
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  • Programs & Services
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      • Agriculture Resources
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    • Financial Assistance/Cost Share Programs >
      • Invasives Cost Share
      • Landscape Callery Pear Removal Grants
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      • Hamilton County Invasives Partnership
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    • Fall Native Sale
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      • Well Water Testing
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    • Backyard Conservation
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      • Micro-Irrigation
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      • Garden Resources
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    • Restoring HOA Native Landscapes
    • Stormwater Landscape Maintenance Training
    • Rain Garden Info
    • Seed pack
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Hamilton County SWCD News

Soil Health Principles - A Refresher for Landowners

1/28/2022

1 Comment

 
Diane Turner - Conservation Technician and Outreach Coordinator

As a landowner or farm operator, you face many decisions when managing your natural resources. When it comes to improving soil health, Hamilton County SWCD is here to provide reminders and tips to guide your decision making. Soil health is defined as the capacity of a soil to function as a vital, living ecosystem that sustains plants, animals, and humans. Landowners that encourage healthy soils can not only sustain productivity but maintain environmental quality while enhancing plant and animal health. Some characteristics of healthy soils include good soil tilth, good soil drainage, large population of microorganisms, sufficient (but not excessive) levels of essential nutrients, and low weed pressure.  Lets look closely at the recommended key soil health principles, that if incorporated into your practices, will help improve the health of your soil.

Picture
​Soil armor (surface plant materials/residue) is important for reducing water and wind erosion, decreasing water evaporation, moderating soil temperatures, reducing the impact of energy from raindrops, suppressing weed growth and providing a habitat for surface dwellers, which are an important part of the soil food chain.
  • Mulching
  • Reduced tillage
  • Forage and biomass planting
  • Residue retention
  • Cover crops
  • Green manures

Picture
​A continual living plant root either from the commodity crop, cover crop or forage crop provides carbon exudates to feed the soil food web, which is exchanged for nutrients for plant growth. This process is also important for soil aggregate formation, which increases soil pores for improved water and air exchange.
  • Crop rotation
  • Cover crops
  • Relay crops
  • Forage and biomass
  • Planting
  • Perennial crops 

Picture
Minimizing soil disturbance, either biological, chemical, or physical tillage, enables the soil armor to persist. Biological disturbance includes overgrazing of forages that reduce soil armor and below ground biomass. Physical and chemical disturbance occurs from tillage burying crop residues and over stimulating microbial breakdown and excessive carbon release into the atmosphere.
  • No-till
  • Reduced Tillage
  • Controlled traffic
  • Avoid tillage when wet
  • IPM

Picture
​Prairie plant diversity aided and allowed soils to develop prior to the introduction of annual cropping systems. Plant diversity uses sunlight and water to sequester carbon and other nutrients, preventing leakages into ground and surface waters. Understanding the four crop types — warm-season grasses and broadleaves, and cool-season grasses and broadleaves — is necessary for designing cropping systems that improve soil health.  Livestock integration balances soil carbon and nitrogen ratios by converting high carbon forages to low carbon organic material, reducing nutrient transport from the soil, and promoting pasture and rangeland management in combination with cover crop grazing.
  • Crop rotation      
  • IPM
  • Pollinator plantings
  • Organic fertilizers
  • Legumes in mix
  • Agroforestry
  • Cover crops
  • Crop / livestock integration

1 Comment

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    Write something about yourself. No need to be fancy, just an overview.

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