The following results are from a study which was conducted by Dave Ringuette, a Professor at University Hawaii Windward Community College. He studied the effects of a SumaGrow (SG) product on Cacao. The only difference in the plant treatment was the SG product.
||Mean height: 5.9 inches
|Mean height: 6.5 inches
||Mean height: 12.6 inches
|Mean height: 9.3
The SumaGrow treated plants had a mean height of 12.6, while the control plants had a mean height of 9.3 inches, so SumaGrow increased the mean height by 35.5%
Professor Ringuette noted the water only plants had approximately 15% more mealy bug and beetle damage.
With the advice and assistance of the National Fertilizer Testing Center and the Dat Viet Xanh Farmers’ Association, in collaboration with Gia Lam District, fertilizer trials were performed with EarthCare with SumaGrow Inside broccoli at Yen Vien Commune, Gia Lam District, Hanoi.
The plant height increased, fewer pests were noticed, soil organic matter increased 67.5%, and, of course, the yield increased 37.5% while the chemical fertilizer was reduced by 50%, which resulted in a net increase in profit of over $431/hectare (May 8, 2018 exchange rate).
The use of EarthCare with SumaGrow inside reduced the urea nitrate residue in the broccoli. This is an important criteria for evaluating the product as safe or not before being used.
This trial was supervised by Dr. Ngo Thi Dao, Former Head, Department of Soils University of Pedagogy in Hanoi, who is also the author of two books on agriculture.
The report also contains detailed soil analysis reports.
The original report is in Vietnamese, which was translated into English: Vietnam Report in English — Broccoli
From the report’s conclusion: “Summa Grow (SumaGrow) at 1.0 gallons per acre did positively improve soybean performance (growth and yield) in low P2O5 and K2O soils despite having the recommended fertilizer rate reduced by 30%. This indicates that properly used, bio-stimulants can improve plant health and thereby improve yield. Even where no fertilizer was used, Summa Grow (SumaGrow) increased yield and performance of soybeans…”
This study is somewhat unique for a university study in that the study compared a product to both a Control and to a Grower Standard. We have long maintained that the typical study (touted by many of our competitors) compares a product to a Control of nothing but soil. This is NOT the real world.
Farmers want to know how a product will improve _their_ results in the real world. This means comparing what they are presently doing, referred to as Grower Standard, to whatever is recommended using a new product, in this case SumaGrow. While we believe the yield increase would have been higher than 13% if fertilizer had been reduced more than the 30% reduction used in this study, the 13% yield increase is a real world number which a farmer would have achieved since it compared what they are doing now to using SumaGrow with a reduction in fertilizer, which is recommended. SumaGrow with zero fertilizer even out-yielded the Grower Standard.
For the record, when comparing the SumaGrow results to the Control, again, used by most of our competitors, the yield increase was 20% according to this study.
The full study can be accessed by clicking on this link: Mississippi State University– Soybeans
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:
China Tea Report0001
This article was written by Dr. Lalithakumari Janarthanam who served for six years as our Director of Research & Development (now retired). In the U.S., we are not allowed to make any biopesticidal claims, so the article title and abstract are copied here with a link to the article below, without comment:
Bioprotectant with multifunctional microorganisms: A new dimension in plant protection
ABSTRACT In the present investigations it is proved that the inoculation of multifunctional microbial formulation to the soil improves soil quality, soil health, plant health, growth, yield, and quality of a broad spectrum of crops reducing chemical fertilizer and pesticide input. These microbial populations consist of selected species including plant growth promoting rhizo-bacteria, N2-fixing bacteria, Phosphate solubilizers, phytohormone producers, plant disease suppressive bacteria and fungi. To make it very simple a different dimension as „Bio Protectant” is given in this presentation to the collective synergistic effects of beneficial microbes stimulating soil, plant and environmental health reducing chemical fertilizer and pesticide application. A healthy plant does not require unwanted, poisonous chemical pesticides. Review of literature is focused in multiple ways on the growth promoting ability along with the biological activity of beneficial microorganisms. The present SumaGrow-F2 formulation contains multi-functional Rhizobium species, Pseudomonas spp., Bacillus, and Trichoderma spp. The recorded novel benefits of SumaGrow-F2 formulation in the Green House and Field are discussed here as microbes increasing plant health, soil health, and root health of a broad spectrum of crops. Not only can it eliminate almost all insect infestations and reduce fungal or bacterial infection, it also creates a healthier environment for plant growth. The result is healthy crops with a corresponding increase in the yield of fruits or vegetables or grains. Modern trend is to look for inspiring intelligent multi-functional microbial Plant protectant or bio protectant for sustainable agriculture.
Here is the article:
Bioprotectant with multifunctional microorganisms – A new dimension in plant protection JBiopest
Irish potatoes are of great economic and dietary value as a food-source worldwide ranking as the third most important food crop after rice and wheat. Potatoes require high levels of fertilizer to produce high yields with marketable quality. However, in some countries fertilizer is very difficult to obtain and very expensive. Using SumaGrow would greatly reduce this need for, and cost of, fertilizers. With SumaGrow, it has been shown that equivalent yields and growth can be obtained at reduced fertilizer rates when compared to full recommended fertilizer treatments.
In almost all trials, SumaGrow actually increases the yield compared to the existing grower standard — what the farmer is obtaining now using the best available technologies without SumaGrow. In this particular trial, growing Red LaSoda Irish potatoes, “combined yields from the grading process at ten days following harvest showed the same results where the SumaGrow treatments were as much as 2,509 Lbs/acre greater than the 100% fertilizer treatment without SumaGrow.” This equates to a 16% yield increase.
Additionally, “at harvest criteria did show the strengths of the SumaGrow product in reducing fertilizer rates, hence reducing input costs and minimizing environmental hardships.” Better plant health and vigor, as well as higher brix levels were also noted.
Here is the link to a copy of the study report: Mississippi State U — Irish Potato
This university study doesn’t have many specifics, however, we do know the lint (what the farmer actually gets paid on) yield increase went up 28.3%. Three gallons of SumaGrow were used per acre due to poor soil health.
The one page summary has some additional details: China_Cotton_Jiangxi_summary