01/31/13, 08:33 PM
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Join Date: Dec 2009
Location: Oklahoma
Posts: 3,116
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Quote:
Originally Posted by haypoint
It isn't the rr alfalfa that doesn't let the weeds grow. It is the Roundup spray that doesn't let the weeds grow. Roundup kills everything, except the rr alfalfa. rr alfalfa cannot supress weeds.
But you do bring up a good point. After I have sprayed the rr alfalfa as it is getting established and then a year or two later, to kill the weeds that come up from weed seeds in the soil, I might seed some brome or timothy into a rr alfalfa stand. But as soon as weeds present a problem, I can spray and kill all the weeds and my brome and timothy.
Opening up a hay field every few years with a plow and disc allows a lot of erosion, too. A quick spray with Roundup and reseeding a bare spot every few years would keep the field productive for a long time.
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From what I read weeds are a sign of poor unhealthy soil. So it seems to me the real solution would be to build soil health, not poision the water supply.
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