Agronomy Degree Practice Exam

Question: 1 / 400

Which element does alfalfa require in large amounts?

Potassium

Alfalfa, a widely cultivated forage crop, has a high requirement for potassium. This element is essential for various physiological processes in the plant, including photosynthesis, water regulation, and overall plant health. Potassium plays a crucial role in enzyme activation and the synthesis of proteins and starches, which are vital for the growth and development of alfalfa.

In the context of forage production, adequate potassium levels help improve the yield and quality of the harvested biomass, making it more nutritious for livestock. The need for potassium is particularly pronounced in alfalfa because it is a deep-rooted perennial, and as such, it extracts significant amounts of this nutrient from the soil over its lifespan. This underscores the importance of regular soil testing and the strategic application of potassium fertilizers to support optimal growth and productivity of alfalfa crops.

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Magnesium

Chloride

Sulfur

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