STH-7 Soil Macronutrient Test Kit

LaMotte® STH-7 Soil Macronutrient Test Kit – Professional On-Site Analysis

Brand Chemical Supplies is a premier distributor of the LaMotte® STH-7 Soil Macronutrient Test Kit, the definitive portable laboratory for South African agronomists, commercial farmers, and soil scientists. This comprehensive kit utilizes advanced colorimetric and turbidity methods to provide instant, high-accuracy data on seven critical soil health parameters, allowing for immediate corrective fertilization and liming decisions.

---

Comprehensive Test Capabilities

The STH-7 is designed to provide 50 to 100 tests per parameter, ensuring a low cost-per-test for large-scale field mapping.

 

Nutrient / Parameter	Range	No. of Tests
pH (Acidity/Alkalinity)	3.8 \sim 9.6 pH	100
Nitrate Nitrogen ($N$)	10 \sim 150 lbs/acre	50
Phosphorus ($P$)	10 \sim 200 lbs/acre	50
Potassium ($K$)	100 \sim 400 lbs/acre	50
Humus (Organic Matter)	L-H 1.5\% \sim 8\%	50
Calcium ($Ca$)	150 \sim 2800 ppm	50
Magnesium ($Mg$)	L-H 5 \sim 150 ppm	50

---

Key Features & Benefits

• Laboratory Precision in the Field: Employs the Mehlich I extraction method and unique chemical indicators to mimic the accuracy of commercial soil laboratories without the 2-week waiting period.

• Simplified “Octa-Slide” Viewing: Includes the LaMotte Octa-Slide 2 color comparator, which features built-in color standards to eliminate the subjectivity of traditional paper color charts.

• Turbidity Measurement Technology: Uses specialized reading devices for Potassium and Calcium to provide quantitative results rather than simple “High/Low” estimations.

• Industrial-Grade Portability: Housed in a lightweight, high-impact carrying case with protective foam inserts to keep reagents and glassware secure during transport across rugged farm terrain.

• All-In-One Soil Extract: Most nutrient tests are performed using the same universal extraction solution, significantly speeding up the multi-parameter testing process.

• Plant Tissue Screening: Includes specialized procedures for screening Nitrogen, Phosphorus, and Potassium in plant tissues to diagnose mid-season nutrient deficiencies.

---

What’s Included in the Kit?

• Full Reagent Set: All necessary chemicals for up to 100 tests.

• Precision Labware: Glass test tubes, pipettes, and measuring spoons.

• Soil Management Handbook: A detailed guide on interpreting results and calculating lime/fertilizer requirements.

• Report Forms: Professional pads for documenting field results for clients or farm records.

• Durable Carry Case: Reinforced housing for organized storage.

   

---

Primary Applications

• Precision Agriculture: Mapping nutrient variability across large pivots to optimize variable-rate fertilizer application.

• Crop Consulting: Providing immediate on-site diagnostic services to farmers during critical growth stages.

• Horticulture & Greenhouse Management: Monitoring the sensitive nutrient balances required for high-value export crops.

• Soil Remediation: Tracking the recovery of depleted soils or rehabilitated mining land.

Contact our agricultural technical team today to secure your LaMotte® STH-7 Kit and take full scientific control of your soil’s productivity.