(a) Organic fertiliser :
-------------------
The nutrients (minerals) contained in any or all organic fertilisers are after application
NOT readily available for the plant to utilise.
The organic stuff has first of all to be broken down by bacteria and fungi for the nutrients therein
to be usable by the plant. The process may take several months.
This is the main disadvantage. Besides, organic fertiliser may be smelly (e.g. fish emulsion) and introduce
chum into the compost. Chum attracts pests.
(b) Good non-organic fertilisers
------------------------------
contain all macro nutrients and micro nutrients our plants need, which nutrients are after application
readily available to the plant.
Modern brands like 'Bayfolan Forte' are better than others, because their composition is almost salt-free.
Urea content : I am not sure whether this is of real importance.
It is said that a 30% to 50% portion of N made from urea in the mix is OK.
My take on this 'Coryanthes & Formic Acid' issue ::
-----------------------------------------------
As Coryanthes plants, when cultivated like (e.g.) Phalaenopsis plants, sooner or later invariably die,
some experts pondered the issue and came up with the exotic assumption that lack of formic acid must be it.
No, it is not. - Coryanthes plants in cultivation succumb to an under-supply of nutrients and light - and
because most growers unfortunately cannot provide enough warmth (no less than 20°C) ...
Linear Mode
