What your soil most likely needs is organic matter so spending money for something that contains a wee bit of organic matter and is mostly the mineral portion of soil that you already have is a waste of your time, energy, and money. The Mushroom Compost would be a better choice and manure, today, is probably not nearly as good a choice as nothing because of where animal manures come from (CAFOs).
You may be able to find a good soil test lab through your AgCanada office and a good, reliable soil test would be a very good idea as would these simple soil tests
1) Structure. From that soil sample put enough of the rest to make a 4 inch level in a clear 1 quart jar, with a tight fitting lid. Fill that jar with water and replace the lid, tightly. Shake the jar vigorously and then let it stand for 24 hours. Your soil will settle out according to soil particle size and weight. A good loam will have about 1-3/4 inch (about 45%) of sand on the bottom. about 1 inch (about 25%) of silt next, about 1 inch (25%) of clay above that, and about 1/4 inch (about 5%) of organic matter on the top.

2. Drainage. Dig a hole 1 foot square and 1 foot deep and fill that with water. After that water drains away refill the hole with more water and time how long it takes that to drain away. Anything less than 2 hours and your soil drains too quickly and needs more organic matter to slow that drainage down. Anything over 6 hours and the soil drains too slowly and needs lots of organic matter to speed it up.

3) Tilth. Take a handful of your slightly damp soil and squeeze it tightly. When the pressure is released the soil should hold together in that clump, but when poked with a finger that clump should fall apart.

4) Smell. What does your soil smell like? A pleasant, rich earthy odor? Putrid, offensive, repugnant odor? The more organic matter in your soil the more active the soil bacteria will be and the nicer your soil will smell.

5) Life. How many earthworms per shovel full were there? 5 or more indicates a pretty healthy soil. Fewer than 5, according to the Natural Resources Conservation Service, indicates a soil that is not healthy.

that can help guide you in making the soil you have into a good, healthy soil that will grow strong and heatlhy plants.

So go buy a 50lb. bag of alfalfa meal or pellets and spread over garden, water it in and as you plant make sure you have mixed a scant handful in the planting trench or hole. Start saving your newspapers and cardboard, and go read 'lasagna gardening' (google it)

Thanks for your replies. Charleney, I will try the alfalfa, but I have made a bed using the lasagna method a few years ago, and I hated having to go through the layers of newspaper to plant the first year. I prefer not to use that method in this location because the beds are raised.

Kimmsr, your response is just up my alley. I am a trained tecchie and I appreciate the tutorial. I will go out and do the soil test in the next hour or so. I will be getting to the bottom of things (no pun intended).

Both of you omitted to address the question of mulch. I have so many small weeds growing in all my beds right now, I want to prevent that in future.

Thanks again.
Northerner.

I don't know how to keep the weeds out of your garden, but I do know that they make great compost. Our open compost pile gets lots of dandelion, garlic mustard, bindweed, and creeping charlie, along with shredded maple leaves and raspberry canes. It is a slow pile that never heats up much. Even so, there is good compost in the pit underneath, and this compost does not seem to have any viable weed seeds. It goes onto our garden plot, every spring.