Rebekka Rieder

Professional Master of Science Student – Educated on the subjects of soil fertility and agriculture managements

«
»

Organic Soil Amendments

Posted by Rebekka Rieder on April 15, 2008

Comparative Study in Lab Incubations of Five Organic Soil Amendments at Two Different Temperatures

OSU Spring 2007 – organic-soil-amendments_group-project_2007

Abstract:

An experiment was conducted to analyze the difference that two temperatures (22°C and 37°C) have on nutrient content, nitrogen mineralization and carbon release in some common organic products used for organic growers in the Pacific Northwest. The products used for the current study were coffee grounds, feather meal, fish emulsion, shrimp shells and horse manure. These amendments were tested for pH, EC, N mineralization, CO2 lost through decomposition, and plant available nutrients through ion flux with PRSTM probes in a 7 day period. Temperatures affected the amendments with C: N ratios lower than 10 (fish, feather, shrimp), more than the amendments with C: N ratios more than 20 (horse, coffee). The different temperatures did not affect micronutrient availability. All of the amendments did follow the trend of decomposing more quickly at higher temperatures.

This entry was posted on April 15, 2008 at 5:21 am and is filed under Environment. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “Organic Soil Amendments”

  1. ithinkorganic said

    May 13, 2009 at 4:03 am

    I would like you to place a link to organic soil amendments on this page to help is promote the Think Organic brand and ideal.

Leave a Reply

You must be logged in to post a comment.

«
»