Advantages of potassium polyacrylate for potatoes

  • Potassium polyacrylate improves soil’s ability to hold water In the root zone and then release it to plants As they need it.
  • Potassium polyacrylate has also been shown to increase nutrient levels In leaf petiole samples.
  • Should be applied at 7 lbs per acre, in furrow, with potato seed pieces or at spring mark out before planting.
  • Potassium polyacrylate has no toxic components In the soil like plant residues. 

Othello, WA-Russet Burbank Potatoes

General trial information

Location : Othello, WA

Crop:Potatoes

Rate of potassium polyacrylate : 7 lbs per acre

Application : Applied In furrow at planting

Harvest : Replicated trial samples harvested By hand

Yield Results

Field Untreated Treated Increase
Total Lbs Hendricks Road 159 lbs 173 lbs 14 lbs
Tons/Acre Hendricks Road 38.68 Tons 43.371 Tons 3.51 Tons

Hermiston, OR – Premier Potatoes

General trial information

Location : Hermiston, OR

Crop:Potatoes

Rate of potassium polyacrylate : 7 lbs per acre

Application : Applied In furrow at planting

Yield Results

Total Yield Total Usable Min 4 oz Min 6 oz Min 10 oz Min 14 oz
Untreated 37.55 Tons 91.9% 17.4% 30.9% 24.7% 18.2%
Treated 40.9 Tons 94.9% 10.2% 30.8% 26.9% 27.0%
Difference +3.46 Tons +3.8% -7.2% -0.1% +2.2% +5.8%

Mt Vernon, WA – Chieftan Red Potatoes

General trial information

Grower : Sterling Potato

Location : Mt Vernon, WA

Crop : Potatoes

Variety : Chieftan Reds

Rate of potassium polyacrylate : 7 lbs per acre

Application : Applied In furrow at planting

Yield Results

Treated Untreated Increase
Total Culls 0.0% 1.8% -1.8%
<1-7/8″ 3.1% 3.4% -0.3%
1-7/8″ to 2.25″ 13.6% 22.4% -8.8%
2.25″ to 2.5″ 22.7% 29.0% -6.3%
2.5″ to 2.75″ 9.1% 13.3% -4.2%
2.75″ to 3.0″ 36.6% 23.8% +12.8%
3.0″ to 3.25″ 3.5% 3.3% +0.2%
3.25″ to 3.5″ 8.9% 2.9% +6.0%
>3.5″ 2.5% 0.0% +2.5%

Yield Results:
Untreated-24.6 Tons/Acre; Treated-26.9 Tons/Acre

Further Details