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Page 1 of 5 2 Field Report Huma Gro ® Program Increases Strawberry Yields 13%, With an ROI > $3,400/acre Conducted by: Holden Research and Consulting Huma Gro ® Products: Vitol ® , Breakout ® , Super Phos ® , Super Nitro ® , Calcium, Super Potassium ™ Objective This field trial assessed the effects of an additional 4 foliar applications of Huma Gro ® products on the yield of Portola strawberries when compared with the grower's standard crop nutrition program. Materials & Methods This trial was set up in a complete randomized-block design conducted during the growing season of July 18 through November 28 in Ventura County, Calif. Two treatment programs were compared: Treatment 1 was the grower's standard nutrition program of controlled-release fertilizer applied at planting and in-season applications of N-P-K; Treatment 2 was the grower's standard plus varied combinations of Huma Gro ® products applied foliarly at 4 points during the growing season: A. September 5: 1 pint/acre each of Vitol ® , Breakout ® , Super Phos ® B. September 26: 1 pint/acre each of Vitol ® , Super Phos ® , Super Nitro ® C. October 17: 1 pint/acre each of Vitol ® , Super Nitro ® , Calcium D. November 7: 1 pint each of Vitol ® , Calcium, Super Potassium™ The strawberries were picked 16 times during the growing season, and measurements were made at each picking with results calculated cumu- latively of trays picked per acre, marketable utilization of berries, yield (by weight), and price paid per yield. Results As can be seen in Figure 1, Treatment 2 (Huma Gro ® ) produced the most trays of picked strawberries (10 lb equivalent), with a cumulative total of 2,243.6 trays per acre equivalent, compared with Treatment 1 (Grower's Standard) of 1992.8 trays per acre, a 13% yield increase for Huma Gro ® . Figure 2 shows the daily market utilization for the berries picked dur- ing the season (the percentage of marketable berries from the total weight of berries picked), with Treatment 2 (Huma Gro ® ) resulting in 76% utilization and Treatment 1 (Grower's Standard) reaching only 70%. This represents over 3,000 additional pounds of berries per acre that can be sold due to Treatment 2 (Huma Gro ® ). No problems with phytotoxicity (leaf burn) were noted with the use of any of the foliar-applied Huma Gro ® products. Conclusion Based on the data collected in this trial, the Huma Gro ® treatment pro- gram resulted in both higher yields and a higher percentage of market- able yield, resulting in an overall yield increase of 13% over the Grower Standard. This yield increase resulted in a return-to-the-farm increase of almost $3,500 more per acre, a 14% increase in dollars back to the farm (see Figure 3). Factoring in the cost of the additional Huma Gro ® products applied to achieve this yield increase, the return on investment (ROI) was calculated to be 8,226%. It is recommended that in future trials the Huma Gro ® product combi- nations be foliarly applied at 2-week intervals and alternate Vitol ® and Breakout ® in the product mixes. 0.0 500.0 1,000.0 1,500.0 2,000.0 2,500.0 1,992.8 2,243.6 Trays per Acre (10 lb equivalent) Figure 1. Total Strawberry Trays Yield per Acre, Grower's Standard (GS) vs. GS + Huma Gro® Treatment 1: Grower's Standard (GS) Treatment 2: GS + Huma Gro® 0% 20% 40% 60% 80% 100% 70% 76% Percentage Figure 2. Percentage Strawberry Yield Marketable Utilization, Grower's Standard (GS) vs. GS + Huma Gro® Treatment 1: Grower's Standard (GS) Treatment 2: GS + Huma Gro® $24,785.06 $28,256.64 Dollars per Acre Return, Gross Figure 3. Total Strawberry Yield Gross Return ($/Acre), Grower's Standard (GS) vs. GS + Huma Gro® $5,000.00 $0.00 $10,000.00 $15,000.00 $20,000.00 $25,000.00 $30,000.00 Treatment 1: Grower's Standard (GS) Treatment 2: GS + Huma Gro®

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