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HUMMERTS HELPFUL HINTS Zoom

HUMMERTS HELPFUL HINTS

SKU: AG913800
HUMMERTS HELPFUL HINTS (DNR)

Availability: In stock

$4.00

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Product Description
    Hummert's Helpful Hints is a handy reference to the formulas, calculations and tables that give equivalencies, parts per million, measurements of pH, soluble salt and geometric areas. Also covers fertilizers, irrigation, light and lighting, plant structures & more.
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