All K is a formulation of potassium thiosulfate which provides a high quality, less caustic, and readily available source of potassium and sulfur. It is ideal for use when both potassium and sulfur deficiencies are present.
BioPro Liquid NPK Blends
All K™ (0-0-25)
With 17% Sulfur
Guaranteed AnalysisSoluble Potash (K2O)25.00%Sulfur (S)17.00%17.0% Combined Sulfur
- Excellent source of highly soluble potassium
- Less caustic source of potassium
- Enhances stress tolerance
- Improves drought resistance
- Excellent source of sulfur
- Low salt content
Labels & SDS
Sizes & Item Numbers
2.5 Gallon Jug – # 56100
30 Gallon Drum – # 56101
275 Gallon Tote – # 56102
Where to use
Golf & Sports Turf
Lawn & Landscape
Potassium & Sulfur Deficiencies
Areas Prone to Drought
All K (0-0-25) provides a high quality, readily available source of potassium and sulfur. It is an ideal product to use when both sulfur and potassium deficiencies are present in turf. Potassium plays a key role in sustaining vigorous plant growth through stressful conditions. Unfortunately, potassium is readily lost from the root zone through leaching, especially in sandy soils. All K provides potassium from potassium thiosulfate, a high quality, less caustic, source.
Sulfur is widely recognized as an essential element for plant growth. Sulfur is a critical nutrient for the development of chlorophyll, helps nitrogen to be used more efficiently and is required by the plants to synthesize certain vitamins and amino acids.
- Low potassium levels in leached or sandy soils
- Stunted growth with necrotic leaf tips resulting from potassium deficiency
- Low vigor turf susceptible to mid-summer stresses
- Sulfur deficiency
All K can be applied through fertigation or conventional spray. It can be applied alone or tank mixed with other products✝.
One gallon of All K (0-0-25) contains 3.05 lbs. of potassium as K2O and 2.08 lbs. of sulfur. Refer to the table below to determine the volume of fertilizer to apply to achieve the desired amount of potassium. Apply All K diluted with 2 gallons of water per 1,000 sq. ft. or 80 gallons of water per acre of water per 1,000 sq. ft. or 80 gallons of water per acre.
Desired lbs. of K2O Fl. oz. per 1,000 sq. ft.* Gallons per acre** 0.10 4.2 1.4 0.125 5.2 1.8 0.25 10.5 3.6
*Apply in 2 gallons of water per 1,000 sq. ft. **Apply in 80 gallons of water per acre.
✝ Compatibility: perform a standard jar test to check compatibility with other products before mixing.