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HorseTail
On 12/05/2015 10:18, Martin wrote:
On Tue, 12 May 2015 10:13:07 +0200, Michael Uplawski wrote: -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Tue, 12 May 2015 09:23:49 +0200, Martin wrote: It grows between paving stones in The Netherlands. Under the paving stones is sand, all the way down. The local authorities controlled Horse Tails by spraying pavements with glyphosate. This now banned, mainly because local authorities sometimes sprayed just before rain. When it rained during or just after application, the glyphosate didn't have time to break down and it ended up in the ground water. In most of these discussions, where we begin with 'plants' and end with chemistry and the ways of mastering chemistry, I miss one darned question, which appears to be banned by an unspoken law: Why? because the Dutch are very careful about what gets in the ground water, in most areas it is the source of drinking water. That will be why the groundwater nitrate level in some areas is so high that it isn't safe for babies and young children to drink it then. See p4 in: http://www.eea.europa.eu/data-and-ma...in-groundwater (somewhat out of date for free access) Not as bad as in Germany and worst of all Spain but not good. -- Regards, Martin Brown |
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