A very important fact is the moisture of the air,
When it rains this is almost 100% relatively. plants have developed
over millions of years in this conditions so on one hand they might
experiens irrigation as artificial.
It could also be that when the air is very hot and dry plants will
evaporate the water they take up and salts, nutrients will
stay behind in higher concentrations than when plants get water
> Eliska replied:
> > I'm wondering that myself. Water conservation proponents say that a
> > deep watering twice a week will help a plant develop deep roots and
> > good growth.
> > After a dry spell here in Florida, during which my plants just hung
> > in, we had lots of rain. They flourished - lots of new foilage and
> > flowers and growth spurts.
> > So waht's up with that?
> Yo both:
> I remember reading somewhere, I can't provide a reference, that rain
> water (especially thunder showers) contains a small amount of
> nitrogen, in effect applying a top dressing of fertilizer every time
> it rains. We too have noticed that rain water is far superior to well
> water for all types of growing things...
Frits v/d Laan
Organic horticulture. Gouda - Netherlands
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