Di-Ammonium
Phosphate
This fertilizer type also comes in white crystalline salts. Ammonium
Nitrate salts contains 33 to 35% nitrogen, of which half is nitrate
nitrogen and the other half in the ammonium form. As part of the
ammonium form, this type of fertilizer cannot be easily leached from
the soil. This fertilizer is quick-acting, but highly hygroscopic
thus making it unfit for storage. (TIP: Coagulation and Granulation
of this fertilizer can be combated with a light coating of the
granules with oil.) On a note of caution: Ammonium Nitrate also has
an acid effect on the soil, in addition this type of fertilizer can
be explosive under certain conditions, and, should thus be handled
with care.
'Nitro Chalk' is the trade name of a product formed by mixing
ammonium nitrate with about 40% lime-stone or dolomite. This
fertilizer is granulated, non-hazardous and less hygroscopic. The
lime content of this fertilizer type makes it useful for application
to acidic garden soils. |