The report (link below) was written by a government agency with assistance from Nanjing Forestry University. The report did not specify an exact increase in yield, however, it stated, “all parameters related to plant growth vigor increased by more than 25% as compared with those of untreated tea trees” and SumaGrow “produces positive effect on the soil.”
The height, width, number of buds and size of buds all increased by at least 25%, leading us to conclude that the average yield increase was over 80% (see link to report below).
The tea leaves (right) appeared shiny after treatment with SumaGrow.
Click here for the full report with additional pictures:
This study started in February of 2013 on approximately 30 acres in Hancock County, Mississippi. ArborGen improved second generation Loblolly Pine (Pinus taeda) seedlings were planted at the rate of 550 seedlings per acre. The seedlings were treated with a solution of water and varying amounts (2 oz. to 14 oz.) of SumaGrow by briefly placing the seedling roots in the solution, a “root dip.”
The treated seedlings are growing approximately one extra foot per year versus the control.
Below are progress reports in chronological order: