What is a Differential Leaf Extract Test?
Extracts cellular fluid for a complete picture of nutrient availability
Sample of old and young leaves to
ascertain nutrient mobility within the plant
Reports on 23 different aspects
of plant nutrition
A differential leaf extract test is a laboratory procedure that uses a sample of plant leaves to assess the presence of nutrients within the plant’s cells. This test involves extracting the cellular fluid from the leaf cells which is then analysed to determine the presence of various nutritional elements that contribute to the plant’s growth and overall health.
Differential Leaf Extract Test vs Traditional Methods
Differential Leaf Extract Test Comprehensive Sap Testing — young and old leaf | Dry Matter TestingTraditional method — Dry Matter or Leaf Ash Testing |
Swift Deficiency Detection
Reveals nutrient deficiency ahead of time using nutrient flow analysis between old and young leaves | Late Deficiency DetectionRevealed only after the actual nutrient deficiency was caused |
Precise Leaf Analysis
Compares nutrient levels in both the young and old leaves of a plant rather than just testing the result in the youngest fully mature leaf | Nutrient MeasurementMeasures nutrients in the cell walls of the plant, giving inflated levels of nutrients that are not plant available |
Holistic Plant AssessmentIncludes sugar content, pH, and EC in addition to macro and micronutrient analysis | General AssessmentMeasures nutrient content against averaged industry data, rather than industry leading data. |
Early DetectionEarly detection of nutrient imbalances, predicting deficiencies or excesses before visible symptoms occur | Failure to Detect Imbalances EarlyOften fail to detect deficiencies early enough to prevent significant crop damage or yield loss |
Innovative Method Uses cutting-edge technology to extract cellular fluid from leaves for nutrient analysis | Traditional Method Only measures a snapshot in time based on the best leaf on the plant (youngest fully mature leaf), not giving insight into lurking deficiencies and imbalances |
Book a Differential Leaf Extract Test
Get a comprehensive report on 23 different plant aspects.
Why is Differential Leaf Extract Test Important?
Differential leaf extract tests are an essential tool for anyone interested in understanding the health status of their plants. These tests provide valuable information about the nutritional elements affecting plant growth, which can be used to make necessary changes to improve the health of crops and gardens.
✓ Early detection of plant stress: Differential leaf extract tests can detect signs of stress in plants early on, allowing farmers and gardeners to take necessary steps to improve the health of their crops.
✓ Improved crop yield: By detecting and addressing any stress factors in plants, farmers and gardeners can improve the yield of their crops, leading to higher profits.
✓ Better understanding of plant growth: Differential leaf extract tests provide valuable information about the nutritional elements that may be affecting plant growth, allowing for a better understanding of the factors that influence plant health and growth. The report includes 23 different aspects namely Major nutrients (NPK), 4 elements of Nitrogen, Secondary Nutrients (Ca, Mg, S), Trace Minerals, Sugars, pH & EC, Al, Na & CL.
How is a Differential Leaf Extract Test Conducted?
Watch the video to learn how to take a Differential Leaf Test
Step-by-Step Process of DSA Test
Sample Collection
Leaf Extraction
Analysis
Interpretation of results
Step 1: Sample Collection
A sample of leaves from the plant is collected in the field and brought to the laboratory for analysis.
Step 2: Leaf Extraction
The cellular leaf fluid is extracted from the leaf sample by using a specially designed extraction method in a controlled Laboratory environment.
Step 3: Analysis
The extracted Leaf Cellular Fluid is then analysed by using various laboratory methods, to determine the presence of various nutritional elements.
Step 4: Interpretation of results
The results of the analysis are then interpreted to determine the health status of the plant.
Book a Differential Leaf Extract Test

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