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Soil Health

• Nutrient Availability & Soil Tests: What Do They Tell You?
  

  Added April, 2011. Notes by Klass Martens, 2006 PASA 3-day soil fertility workshop with Neal Kinsey

• Keyline plow article sparks discussion
  Added February 1, 2010. An article in our January newsletter on the Keyline Plow and its role in soil building has spurred some lively discussion on the NODPA-Odairy discussion list. Click here to read the article by March Krawczyk ... and click here to visit the NODPA-Odairy archives at to follow the thread of conversation that has been happening so far. (If you're registered on O-Dairy, you'll need to log in, then, under "List Name," select ODAIRY. You'll see a list of months. Click on the most recent. If you're not registered on ODairy, go to the listserv page on our web site. There are instructions there for joining, as well as printable instructions.)
  
  
• Re-Building Civilization’s Foundation
  

  Added January, 2010. The focus of modern sustainable agriculture is constantly evolving. In a world where dairy farmers have given way to ‘grass farmers’ and more recently ‘carbon farmers’ the needs and challenges of modern culture are coming full circle to the cycle of life and fertility that starts in the soil. As we look to the soil as a reservoir to moderate the effects of climate change as well as ‘the foundation of civilization’ (Thomas Jefferson), it becomes increasingly clear that the act of soil building is probably one of the most important legacies we can leave for future generations. MORE >

• Nutrient Availability and Soil Tests by Klaas Martens
  
  
• Organic Soil Fertility Management by Klaas and Mary-Howell Martens – November 2005
  
  
• Soil Fertility by Jack Lazor – July 2002