Bill Here is the method EWest provided me. I chickened out this summer cause we had a bad drought with no water flowing in the pond for about 6 months. I plan to start it up next spring.
Frank
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We use a combo of 0-46-0 on platforms and water sol. fert. (pro-sol) broadcast into water. An easy platform is to get a full sized pallet and some vinyl material and tack the vinyl over the top of the pallet then weight it down with blocks in about 2 ft of water where the runoff comes into the pond. You can also use a plastic tub from Wal-Mart like a busboy uses not a deep sided one. Put it on a couple cinder blocks ,put a brick or 2 in the tub and pour in fert. same location.
This is what I would try if I needed a bloom in 2 weeks and water temp was ok assuming alka is ok also:
1. Make a couple Wal-Mart tub platforms as above.
2. Add a mix of 0-46-0 and 20-20-5 to the tubs. That will insure that there is also enough N. see MSU link
http://msucares.com/pubs/publications/p1428.pdf 3. Add some water sol fert. over the lake (to cover a big area)
4. If alka. of runoff is low (pine lands) add a few bags of pelleted lime (not hydrated) in the pond around and upstream of tubs. So water as it comes in will pick up the lime and flow over the tubs. In the area of the tubs and after the fert is in the water, use the last bag of lime as follows. use a 5 gal bucket add a couple pounds of lime to bucket add some water stir around it will dissolve then pour it in water around the tub area , repeat until all of last bag of lime is used up covering the near by area.
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