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Old 04-21-2002, 09:41 AM
RoyaleRcr RoyaleRcr is offline
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Phosphate Banned!

On Friday our Governer Jesse"No Mind" Ventura signed a law banning the use of fertilizers containing phosphate. Your thoughts?
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Old 04-21-2002, 09:56 AM
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Bob Minney Bob Minney is offline
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Move????
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Old 04-21-2002, 10:12 AM
dougaustreim dougaustreim is offline
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Here in eastern SD just across the border, we have not used phosphorus in our standard lawn mix for 15 years. A large percentage of the lawns we treat have been on the program the entire time, with no adverse result.

In this part of the country, soil tests consistently show excessive amounts of phosphorous and potash as well.

Letting them ban potential pollutants that we really won't miss at all, gives us more leverage to keep the uses of the products we really need

Doug Austreim
Austreim Landscaping Inc
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Old 04-22-2002, 09:25 AM
tremor tremor is offline
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We sell what we call "zero phos" fertilzers all the time in those markets that are having Phosphorous related troubles. There aren't really any agronomic problems you can expect, though you should emphasize the need for correct soil Ph to insure what P is there is also available to plants. Companies that sell fertilizer should respond with a good selection of no-phos blends that will fit your program. Phos can cause more problems with weeds & you may enjoy the removal in the long term. Summer anual weeds enjoy the surplus P that many applicators use. Creeping & vining weeds typically benefit from surplus P too.
Also, some preemegrgent herbicides are known to have trouble "coming off" the P when used in fertilizer combination products.
The trouble with P is one of solubility. P is actual too insoluble. The most readily available & therefore most desirable P source is DAP or diammonium phosphate. The old Triple Super Phosphate could take 200 years to enter the solution entirely. As soluble as DAP is, it will still take 50 years to go entirely into the soil solution. So most applied P has the chance to move laterally during large scale rain events. This runoff is know to enter some of our nations waterways, especially from sheep farming, I'm told. Combined with other domestic, agricultural, & industrial phosphates, our industry needs to do it's part to help improve the nations waters. I think you'll find that it's not hard for us to do without applied P.

Steve
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