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  • From: Bill Shoemaker <wshoemak AT illinois.edu>
  • To: "Market Farming" <market-farming AT lists.ibiblio.org>
  • Subject: Re: [Market-farming] Purifying Rural Water for Watering Garden Plants
  • Date: Sun, 3 Jan 2010 12:03:39 -0600 (CST)

Interestingly, chlorine is an element that is suspected of being an essential
element for plant growth. However the plant physiology community argues over
this one. Bottom line is that the low levels used in municipal water systems
are very unlikely to be harmful. As Ben points out, it converts to gas and
leaves quickly from city water once it leaves the water system. Plus, it
binds very quickly to organic molecules in the soil. Any suggestion that it
is harmful to people or soils when delivered by city water systems is poorly
supported scientifically.

Bill


---- Original message ----
>Date: Sun, 03 Jan 2010 07:42:57 +0300
>From: "Wiener, Benjamin L CPT NG NG FORSCOM" <benjamin.l.wiener AT us.army.mil>
>
>Subject: Re: [Market-farming] Purifying Rural Water for Watering Garden
> Plants
>To: Market Farming <market-farming AT lists.ibiblio.org>
>Cc: Market Farming <market-farming AT lists.ibiblio.org>
>
>Reverse osmosis can remove those elements from water. Note that your soil
>will contain those elements, too, so unless you have very high readings for
>chlorine/floride/ and arsenic in your water you are not gaining anything.
>Areas with high arsenic in water usually have high arsenic soils. That is
>where the water got it from. Chlorine in city water will off gas if exposed
>to air for 24 hours. It is standard practice with small aquaria to let
>replacement water stand for 24 hours to remove the chlorine. It is
>exceedingly rare to find floride in a concentration that would affect plants
>or people. Most places don't have enough floride, which is why they add it
>to city water for better dental health.
>
>Ben Wiener
>
>----- Original Message -----
>From: Roots Farm & Karen Sutherland <rootsfarm AT cwdom.dm>
>Date: Sunday, January 3, 2010 1:07
>Subject: Re: [Market-farming] Purifying Rural Water for Watering Garden
> Plants
>To: Market Farming <market-farming AT lists.ibiblio.org>
>
>
>> Not to mention the toxins leached from the hose itself......
>>
>> Best wishes for the New Year to all.
>>
>> Karen
>>
>> On Jan 2, 2010, at 5:42 PM, Mary Conner wrote:
>>
>> > All:
>> >
>> > Does anyone have experience or know of a method to filter out
>> the
>> > chlorine/fluoride/arsenic, etc., in a garden hose irrigation
>> system
>> > so that the plants don't carry those chemicals in them? Can it
>> be
>> > done?
>> >
>> > Thanks!
>> > Mary
>> >
>> > _______________________________________________
>> > Market-farming mailing list
>> > Market-farming AT lists.ibiblio.org
>> > http://lists.ibiblio.org/mailman/listinfo/market-farming
>> >
>>
>> Roots Farm
>> Organic Produce
>> Fruits, Roots, Vegetables & Herbs
>> Cockrane, DOMINICA
>> 767-449-3038
>> rootsfarm AT cwdom.dm
>>
>> _______________________________________________
>> Market-farming mailing list
>> Market-farming AT lists.ibiblio.org
>> http://lists.ibiblio.org/mailman/listinfo/market-farming
>>
>_______________________________________________
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>
William H Shoemaker, UI-Crop Sciences
Sr Research Specialist, Food Crops
St Charles Horticulture Research Center
535 Randall Road St Charles, IL 60174
630-584-7254; FAX-584-4610




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