When defining productivity zones, the best prediction
of future yield is
past yield.

Variable Rate Planting

Start the season by optimizing your most vital input—seed.The right product at the right rate at the right time at the right place. The 4R's that have long guided nutrient management in precision ag are just as applicable with variable rate seeding. SST Summit and FarmRite provide the tools for making optimized yield management decisions simple. Create your variable rate seeding recommendations in FarmRite today.

Step 2:  Identify
Productivity Zones

After normalizing multiple years of quality yield data, productivity zones can be defined throughout the field. The following maps display three different geo-statistical results. The Yield Spatial Trends map displays zones based off the percent of the average normalized yield. The Yield Stability map uses the Coefficient of Variation (CV) to identify stable and unstable zones. The Yield Management Units map combines aspects of the former two maps to identify possible management zones.

Step 1:  Normalize Yield

Normalized yield maps are most often presented as a form of multi-year yield analysis; however, they can also be generated from a single year as the "best representative" yield layer. The normalized yield map below is the combination of three years of yield data. Areas that performed better than average are green and the areas that performed below average display yellow and red.

Step 3:  Assign Planting Rates To Zones

Once management zones are created, seed rates are applied to each area. Seed rates may be applied within a FarmRite order or set manually within Summit's Record section. Further adjustments may include splitting and merging zones, applying new rates or changing varieties.

Step 4:  Export The Recommendation To A Controller

When your planting recommendation is ready, SST Summit lets you easily export the recommendation to the top planting controllers, including Raven, Precision Planting, Case IH, John Deere, and more. Load sheets detail information such as the field name, associated file, variety, and total product needed.

GROWER:  SANDERS FARMS

FARM: SANDERS FIELD, SANDERS 155

PRODUCT NAME: CORN-AF-W2184RIB

PRODUCT NAME: CORN-AF-W2184RIB

PRODUCT REC NAME: 2014 SEED REC

MIN: 34,000 SEED/AC

MAX: 38,000 SEED/AC

AVERAGE: 35,445.44 SEED/AC

variable rate planting