Ace the Certified Arborist Test 2025 – Branch Out and Leaf Your Mark!

Question: 1 / 400

Which condition can result from excessive fertilizer salts in soil?

Increase in soil pH

Enhanced microbial activity

Dieback and marginal burning

Excessive fertilizer salts in soil can lead to dieback and marginal burning of plant leaves. High concentrations of salts create a condition known as salt stress, which can adversely affect plants. When salt levels are elevated, the osmotic potential of the soil solution increases, making it more difficult for plants to extract water. Consequently, plants may exhibit wilting or dieback as they struggle to maintain hydration. Additionally, leaf margins can become scorched or burned, leading to visible symptoms of stress as the plant attempts to cope with the toxic effects of the excess salts. Understanding these impacts is crucial for proper fertilization practices and maintaining plant health.

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Healthier root development

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