Plant tissue test
![An example of chlorophyll content meter](/Images/godic/202501/04/Dualex3350.png")
![A fluorescence ratio chlorophyll content meter in use](/Images/godic/202501/04/CCM300_being_used_to_measure_the_chlorophyll_content_of_small_samples3350.jpg")
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![A fluorometer being used to measure OJIP in the field](/Images/godic/202501/04/OS30p+_fluorometer_being_used_to_measure_plant_stress_in_the_field3350.jpg")
The nutrient content of a plant can be assessed by testing a sample of tissue from that plant. These tests are important in agriculture since fertilizer application can be fine-tuned if the plants nutrient status is known. Nitrogen most commonly limits plant growth and is the most managed nutrient.