"United Scientific Supplies"
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LaMotte® Plant Tissue Macronutrient Test Kit
What Soil Nutrients Do Your Plants Really Use?
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Jiffy Peat Pellets, 36 mm, Plantation Products
Jiffy peat pellets are perfect for starting your seeds indoors.
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Science Take-Out® Plants In A Bottle: Photosynthesis And Respiration
How Do Environmental Conditions Affect Oxygen Production And Use?
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