Probably a good idea to get some oxygen into that brew or it's liable to be harmful to plants. Low tech way is to pour bucket contents back and forth into another bucket ... several times a day ... plus stir it every time you pass by. Do you have any comfry? It is supposed to be elixer for fert/tea. Sounds like a fun experiment. Good luck.

Agree with what others have said about testing your soil first, usually through your state ag center. I have a home tester which cost apx $35, & have compared the ag center's reports on my 3 soil samples w/ what my own tester shows - pretty accurate. High end testers cost apx $75-100. I grow the herb comfrey, make a tea like the alfalfa tea described above & apply it with a sprayer or a watering can. I would worry that comfrey used as a mulch or in compost might grow new plants all over the place. Comfrey tea smells until the leaves turn black, then it stops smelling. As I remember the alfalfa tea that I made never stopped smelling until I poured it on the plants, then there was no smell. Comfrey grows very quickly here, dies back somewhat in the winter & costs almost nothing. See links below. Has anyone mentioned a worm box (vermiculture)? Very cheap as the worms eat your rotten produce, newspapers & eggshells & provide liquid gold to your garden. Info on comfrey as fertilizer, see p2 of link for "liquid fertilizer": http://www.organicgardening.com/learn-and-grow/comfrey-power Comfrey needs room as it has a huge taproot. It can also throw a seed. I am currently cutting off the flowers until I can get the sterile one, Russian Comfrey Bocking #14, developed for this use & recommended. Also see book on link below: http://www.nantahala-farm.com/comfrey-root-bocking-14-s.shtml

I did some research as to why bagged cow manure WAS HORRIBLE last year: made roses broke out in BS ... also why Encap dry-compost (made from cow-manure & leaves) made La Reine broke out in BS. The additives in cattle-feed are mainly: salt, sugar via molasses, and phosphorus. see link below: http://www.farmandranchguide.com/news/livestock/cattle-feed-what-do-those-vitamins-minerals-and-additives-really/article_dcac4f0b-7d08-5a11-bc3a-8a08e16e15ff.html They put chemicals in cattle-feed, such as salt, ammonium sulfate (acidic), ammonium poly-phosphate, monoammonium phosphate, ammonium chloride, iodine, and molasses. I notice that when I used molasses to deepen the color of my pink blooms .. that induced black spots and attract rose slugs. Fungi growth increases when sugar is added. But the main reason why cow-manure promotes fungal growth is: ANTIBIOTICS are fed to cattle, and these antibiotics kill off the friendly bacteria, so the pathogenic fungi take over. Also excess phosphorus is known to make copper and zinc less available. Zinc and copper are strong anti-fungal agents. Gardenville Sea tea has NPK of 2-3-2, high in phosphorus. The ingredients are: Compost Tea, Omega Protein Refined Fish Emulsion, Feed-Grade Molasses, Humic Acid, Phosphoric Acid, Nutri Leaf Soluble Fertilizer (Potassium Nitrate, Urea, Ammonium Phosphate, http://www.garden-ville.com/products/18/Sea-Tea-2-3-2-Organic-Fertilizer.htm Below document by Texas A & M extension showed how high phosphorus can hurt plants: Here's an excerpt from below link: "Perennial plants frequently have iron and zinc deficiencies caused by excessive phosphorus. Manure and composts should be applied judiciously. Annual soil testing to monitor soil phosphorus levels is recommended." That's why my basil plant became yellowish & stunt, but with many flowers when planted in the hole previously occupied by a blackspot-fest rose. https://aggieturf.tamu.edu/files-2005/phosphorus_Provin.pdf

I don't know what it is but probably just a good 10-10-10 or something close to it. Mostly marketing. I use Espoma and fish emulsion on my Knock Out's. They seen to like it. Pink Knock Out and you can see regular Knock Out behind it. My Knock Out bed.