CEC 424 covers 15 topics. StudyPath paces them into daily study sessions that finish before your exam date, with practice questions and worked answers for each one.
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The topics this course covers, in teaching order.
One topic, as StudyPath teaches it.
Soil-water-plant relationships explain how water is stored in soil, how plants absorb and use it, and how this controls crop growth, irrigation need, and yield. For the exam, you must master the movement of water from soil to root to atmosphere, key soil moisture limits such as field capacity and permanent wilting point, and the factors that affect plant water availability.