Lecture Questions

Forums SOIL 3600 Forum Lecture Questions

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    • #4212
      Mario Tenuta
      Keymaster

        Post lecture questions here

      • #4217
        Mario Tenuta
        Keymaster

          you can also reply to lecture questions/comments and my replies

        • #4311
          Mario Tenuta
          Keymaster

            Hello All. I sorting out with the TA the marking of labs and their return to you. They will be emailed back to you so you can see how you did. take care, Mario

          • #4322
            Daniel Scherner
            Participant

              Due to issues with my email server from time to time I just wanted to ask if labs have been sent out yet?

              Thanks,
              Daniel

            • #4405
              Jennifer Lansang
              Participant

                What is the purpose of the priming effect in humus?
                This was from the SOM 1 lecture.

                Thank you,
                Jennifer

              • #4471
                Mario Tenuta
                Keymaster

                  Hello Jennifer. There is no purpose to the priming effect. It does have an effect though. An increase in microbial activity with addition of labile material results in release of extracellular enzymes by soil bacteria and fungi. These enzymes are released by microbes to depolymerize the labile carbon. However, the enzymes also encounter humus and work to depolymerize the humus. This is the priming effect, an increase in degradation of stabilized carbon as a result of addition of labile carbon materials to soil. I hope this helps understand the priming effect better. take care, Mario

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