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Plant Sciences, Zoology & Evolution / Do plants bloom quicker after a rainy day?
« on: 24/02/2009 12:39:46 »
Thanks for the clarification. []
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Where do you guys think tap water comes from?From the beginning I ask this question if my observation was correct...that plants bloom after a rainy day.Nobody answered me directly and every replies assumed that it is beneficial.It is just my observation and I don't know if I am correct. I grow up in a farm and I do observed that grasses and weeds grow very well after a pouring rain.Maybe there are other factors and maybe it is not just the rain after all.
Rainwater is relatively pure water. By the time it has been collected and piped to taps it contains more stuff, not less.
(groundwater is just rain that fell a long time ago).
While it's true that calcium salts in tapwater might be harmful to some plants, the same salts are a nutrient from the point of view of calcium loving plants.
There's not a lot of free chlorine in tap water and the process of spraying it reduces the concentration still further. If the chlorine in tap water was deadly to plants the water companies wouldn't need to call for hosepipe bans in droughts.
Is there any evidence to support the original assertion that rain water affects plants differently from other water?
Similarly, where's the evidence for assertions like this "there is more likelyhood of rainwater containing the elements plants need to survive (N, K, P, Mg) than tap water which will contain mostly elements of no real use & some positively damaging."
I can see how there might be significant nitrogen in rainwater but would someoone care to explain how the K, P and Mg got into the clouds?
"The higher oxygen levels in rainwater will certainly benefit plants. A point I should have noted."
Why? it's not like plants (which generate oxygen) have a shortage of the stuff.
Isn't this meant to be a scientific website?