1. 2013-01-31 This is a laboratory protocol that outlines methodsof extracting, and analyzingNO3- from soil.
  2. 2016-03-17 This video provides a quick overview of the procedure used at ECHO Florida to test for soil nitrate using a Vernier ion selective electrode (ISE). A lab protocol provides more detailed descriptions of the steps in the process as well as all the required materials and equipment for the test.
  3. 2016-07-11 Dr. Dowell is a Research Agricultural Engineer with the USDA ARS. He has about 30 years of experience developing technology to measure grain quality and improving food security in developing countries. He has over 20 years of experience in international agriculture, and is President of Planting...
  4. 2016-08-17 Farmers and gardeners in semi-arid and arid regions of the world face two associated but separate problems, which limit the crops they can grow and the yield of these crops. The underlying problem is lack of rainfall needed for growing plants. The second is accumulation of salts in the root zone....