Daltons Greenzone Sand
Coring, top dress sand, a preparation sand for use under instant lawn and for sports fields, golf courses, parks and reserves and any turf application.
Daltons Greenzone Sand is land mined from the ancient Waikato river bed in Matamata, then washed and screened through our modern sand plant. Daltons Greenzone Sand is consistent, evenly graded and regularly tested.
Features and Benefits:
- Contributes to a consistent water table
- Meets USGA recommendations
- Low EC
- Weed free
- Improved drainage
- Amendments and nutrients can be added
- Turf Tech (seaweed amendment) can be incorporated or mixed into Greenzone Sand.
All information is listed in charts and analysis below.
Particle Size Analysis Report - ASTM Method F1632
|Texture Passing||Chemical Analysis|
|Sand||Silt||Clay||*ASTM Test Method D4972 - 1:1 Ratio (60g Soil:60ml Distilled Water)|
|USDA (mm)||.05 - 2||.002 - .05||<.002||**“Methods of Soil Analysis” American Society of Agronomy (Rhodes, J.D. 1982)|
|U.S.Sieve No.||270 - 10||<270||***Thomas Turf Services Method (1992)|
|USGA Recommendations (%)||≤5||≤3|
|Extraction Method||Acid Reaction***
1 N HCI
|Greenzone Sand||97.8||1.6||0.5||6.2||26.0||1 - 1||None|
United States Department of Agriculture Particle Size Distribution
|Gravel||Very Coarse||Coarse||Medium||Fine||Very Fine||Primary Particle Shape|
|U.S. Sieve No.||10||18||35||60||100||<100|
|Diameter (mm)||>2||1 - 2||.5 - 1||.25 - .5||.15 - .25||<.15|
|USGA Recommendations (%)||≤3||7-10 Max*||≥60||≤20||≤5**||Sphericity/Angularity|
|Sample ID||Percent Retained on Sieve|
|Greenzone Sand||0.1||7.2||40.3||36.1||10.3||3.9||Low to Medium/Sub-ang. to Ang|
Analysis results from Thomas Turf Services, Inc. Texas, USA.
The particle size analysis of the Daltons Greenzone Sand showed it to be almost free of gravel and to contain acceptable amounts of silt and clay. The sand contained an acceptable 7.1% of very coarse sand which is within the recommended maximum of 10%. The sand contained 36.6 - 39.1% coarse sand and 37.0 - 37.2% medium sand for an acceptable total of 73.8 - 76.1%. This total is above the USGA’s recommended minimum of 60%. The sand contained an acceptable 10.2 - 10.5% fine sand which is within the recommended maximum of 20%. The sand contained 3.8 - 5.1% very fine sand which averages within the recommended maximum of 5%. The sand also contained an acceptable total of 6.1 - 8.5% of the particles in the very fine sand, plus silt and clay fractions which is within the recommended maximum of 10%. The sand has a D85 of 0.86mm and a D15 of 0.23mm. The sand particles were sub-angular to angular in shape with a low to medium degree of sphericity. The sand had a very slightly acid pH of 6.9, was low in total salts and free of carbonates. Based on these results, the Daltons Greenzone Sand DOES MEET the USGA’s recommended particle size distribution for a root zone mixture.
The physical measurements of the Daltons Greenzone Sand showed it to have a high, but acceptable saturated hydraulic conductivity (infiltration rate) of 116.6 inches per hour which is above the USGA’s recommended minimum of 6 inches per hour. The sand retained 10.9% moisture at 30cm tension. The sand had an acceptable bulk density of 1.45g/cc and a typical particle density of 2.63g/cc. The sand had a acceptable 44.8% total porosity, 15.9% capillary porosity and 28.9% air-filled porosity. Based on these results, the Daltons Greenzone Sand DOES MEET the USGA’s recommendations for physical measurements of a root zone mixture.
In comparison to the previously tested Daltons Greenzone Sand (G6976, 8/14/06), the present Daltons Greenzone Sand sample had a very similar particle size distribution indicating a continued high level of consistency in the sand production.
Analysis results from Thomas Turf Services, Inc. Texas, USA