Fertilizer may contain: potassium, nitrogen, phosphorous, sulfur, cacium and some microelements.
nitrogen
peat
fertiliser
manure.
Nitrogen is a fertiliser that encourages green growth, but, as it also encourages soft growth it is better used in a balanced fertiliser.
Yes, though often in the form of Ammonia.
marl
If hydrogen was stored onsite at the West Fertiliser factory then that is what the explosion was caused by after the initial fire which led to the hydrogen escape.
Several different ones. Calcite is used as a fertiliser under the name "lime". Various sulphate and phosphate minerals are also used to make fertiliser, such as gypsum (calcium sulphate dihydrite) and fluorapatite (calcium fluorophosphate).
fertiliser
It's called manure.
Fertilisers increase crop yields but cause the problem of eutrophication when they're ... However, if too much fertiliser is used it can pollute water supplies.