How do I keep my raised bed vegetable garden productive?

Question:
How do I keep my raised bed vegetable garden productive?
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Answer:
Something is not right if the garden is getting less and less productive. Test your soil for pH and nutrients. Also, rotate your crops within the bed each year.
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Related Videos:
What is Soil pH and why is it so Important?
Soil Testing
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Related Resources:
Understanding Soil pH
Create a Square-Foot, High-Yield Vegetable Garden