FFA Floriculture Practice Test

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Study for the FFA Floriculture Test. Access flashcards and multiple-choice questions for thorough preparation. Each question includes hints and explanations. Prepare to excel in your exam!

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What effect does injecting dilute sulfuric acid into the irrigation system during greenhouse production have?

Increase nutrient absorption
Decrease root medium pH
Promote root growth
Improve transpiration rates

The correct answer is: Decrease root medium pH

Injecting dilute sulfuric acid into the irrigation system during greenhouse production decreases the pH of the root medium. This is particularly important because many plants thrive in slightly acidic conditions. Lowering the pH can enhance the availability of certain nutrients; for example, micronutrients like iron, manganese, and zinc become more soluble and accessible to plants at lower pH levels. Maintaining an optimal pH level is crucial for plant health and can influence nutrient uptake efficiency. Additionally, various growing mediums, such as peat or some soilless mixes, may initially have a higher pH, making the addition of sulfuric acid an effective method to optimize the growing conditions for many crops. The other options suggest different outcomes, but reducing pH specifically targets the acidity level of the root medium and its impact on plant nutrient availability and growth conditions.