Polysulphate on Pecans

In the 2023 Georgia pecan trial, Polysulphate treatments effected the overall yield and nut quality.

Chula, Georgia, USA

Key Conclusions

The application of Polysulphate resulted in a notable increase in grower revenue, providing an additional $228 per acre compared to the control.

Objective

Evaluate the effects of Polysulphate on yield and quality of pecans grown in Georgia

Trial Details

Trial station

Chula, Georgia, USA

Crop

Pecan

Assessments

Yield (bu/a).

Treatments

  • This randomized complete block trial consisted of six replicates with two treatments
  • Plot size was two trees per plot
  • Polysulphate was broadcast
  1. Grower Standard
  2. Polysulphate @ 200 lbs/A

Note: To improve uniformity of yield data, tree trunk circumference of about 90 trees (3 orchard rows) was measured. Trees with excessively large or small trunk circumference were not used in this study. Yield collected from 2592 ft2.

Treatments

  • This randomized complete block trial consisted of six replicates with two treatments
  • Plot size was two trees per plot
  • Polysulphate was broadcast
  1. Grower Standard
  2. Polysulphate @ 200 lbs/A

Note: To improve uniformity of yield data, tree trunk circumference of about 90 trees (3 orchard rows) was measured. Trees with excessively large or small trunk circumference were not used in this study. Yield collected from 2592 ft2.

Results

• Polysulphate increased grower revenue by $228/A over the control.

• Polysulphate increased the value of the nut crop due to a higher percentage of #1 edible pecans compared to the control.