- isobutylidene
- изобутилиден
English-Russian names of organic compounds . 2015.
English-Russian names of organic compounds . 2015.
Fertilizer — Tennessee Valley Authority: Results of Fertilizer demonstration 1942 … Wikipedia
NPK rating — NPK redirects here. For the company that uses the NPK stock symbol, see National Presto Industries. NPK rating (or N P K) is used to label fertilizer based on the relative content of the chemicals nitrogen(N), phosphorus(P), and potassium(K) that … Wikipedia