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2. Controlled-release fertiliser - Wikipedia

   en.wikipedia.org/wiki/Controlled-release_fertiliser

   Slow- or controlled-release fertilizer: A fertilizer containing a plant nutrient in a form which delays its availability for plant uptake and use after application, or which extends its availability to the plant significantly longer than a reference ‘rapidly available nutrient fertilizer’ such as ammonium nitrate or urea, ammonium phosphate ...

3. Soil fertility - Wikipedia

   en.wikipedia.org/wiki/Soil_fertility

   Nitrogen and potassium are also needed in substantial amounts. For this reason these three elements are always identified on a commercial fertilizer analysis. For example, a 10-10-15 fertilizer has 10 percent nitrogen, 10 percent available phosphorus (P 2 O 5) and 15 percent water-soluble potassium (K 2 O). Sulfur is the fourth element that may ...

4. Fertilizer - Wikipedia

   en.wikipedia.org/wiki/Fertilizer

   A controlled-release fertiliser (CRF) is a granulated fertiliser that releases nutrients gradually into the soil (i.e., with a controlled release period). [57] Controlled-release fertilizer is also known as controlled-availability fertilizer, delayed-release fertilizer, metered-release fertilizer, or slow-acting fertilizer.

5. Isobutylidenediurea - Wikipedia

   en.wikipedia.org/wiki/Isobutylidenediurea

   It functions as a controlled-release fertiliser owing to its low solubility, which limits the rate of its hydrolysis to urea, which is a fast-acting fertiliser. [1] It is produced by the condensation reaction of isobutyraldehyde and two equivalents of urea: (CH 3) 2 CHCHO + 2 OC(NH 2) 2 → (CH 3) 2 CHCH{NHC(O)NH 2} 2 + H 2 O

6. Landus Co-op unveils modular green fertilizer plant, $15M ...

   www.aol.com/landus-co-op-unveils-modular...

   Landus Co-op unveils first U.S. commercial green fertilizer plant, $15M distribution facility near Boone. ... The Des Moines-based cooperative is cutting out the middleman — producing a slow ...

7. Urea-formaldehyde - Wikipedia

   en.wikipedia.org/wiki/Urea-formaldehyde

   It is also used as wood glue. UF was commonly used when producing electrical appliances casing (e.g. desk lamps). Foams have been used as artificial snow in movies. Urea-formaldehyde is widely used in agriculture as a slow-release fertilizer, which release small amounts of the active ingredient over time. [10]