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2. Labeling of fertilizer - Wikipedia

   en.wikipedia.org/wiki/Labeling_of_fertilizer

   Fertilizers are usually labeled with three numbers, as in 18-20-10, indicating the relative content of the primary macronutrients nitrogen (N), phosphorus (P), and potassium (K), respectively. More precisely, the first number ("N value") is the percentage of elemental nitrogen by weight in the fertilizer; that is, the mass fraction of nitrogen ...

3. Should You Fertilize Houseplants in Winter? Here's When to ...

   www.aol.com/fertilize-houseplants-winter-heres...

   Even if your plants are actively growing in winter and need fertilizer, don’t apply the fertilizer straight. Instead, dilute the fertilizer with water to ¼ strength before application. Apply ...

4. Calcium cyanamide - Wikipedia

   en.wikipedia.org/wiki/Calcium_cyanamide

   The main use of calcium cyanamide is in agriculture as a fertilizer. [3] In contact with water, it hydrolyses into hydrogen cyanamide which decomposes and liberates ammonia: [5] CaCN 2 + 3 H 2 O → 2 NH 3 + CaCO 3. It was used to produce sodium cyanide by fusing with sodium carbonate: CaCN 2 + Na 2 CO 3 + 2 C → 2 NaCN + CaO + 2 CO

5. Plant nutrients in soil - Wikipedia

   en.wikipedia.org/wiki/Plant_nutrients_in_soil

   Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...

6. Your Wilting Plants Need This Fertilizer ASAP - AOL

   www.aol.com/wilting-plants-fertilizer-asap...

   10-10-10 fertilizer has equal parts nitrogen, phosphorus, and potassium. Learn about liquid and granular 10-10-10 fertilizer and when and how to use them.

7. Controlled-release fertiliser - Wikipedia

   en.wikipedia.org/wiki/Controlled-release_fertiliser

   Controlled release fertilizers are traditional fertilizers encapsulated in a shell that degrades at a specified rate. Sulfur is a typical encapsulation material. Other coated products use thermoplastics (and sometimes ethylene-vinyl acetate and surfactants, etc.) to produce diffusion-controlled release of urea or other fertilizers.