Evaluation of Plant Growth Stimulants

Out of scientific curiosity, I obtained some biological growth stimulant products to see if they do indeed provide a growth response. I obtained 3 products from JH Biotech, Inc(www.jhbiotech.com);

  1. Promot MZM, an organic starter fertilizer but which also contained fermentation by-products of a fungal fermentation process;
  2. Superzyme, a biological growth factor with various bacteria and fungi and;
  3. Mycormax, a mixture of several mycorrhizae.

Previous research has shown that the addition of mycorrhizae fungi can result in a growth response on potatoes in Kern County, especially if the field has be previously fumigated. I had very little experience with other growth stimulants but have seen them work in past experiments.
View the trial document here.