Not everyone is big on the idea of using manure (composted or not!) in any form in the soil of their gardens. Whether it is the smell or the mental image that keeps them from it, there are numerous non-manure options you can use to keep your garden fertile and your plants lush and green.
Due to the area you live in, there may be actual rules restricting the use of composted manure on the property (HOA) or some other restrictions that don’t allow you to use the traditional fertilizing methods and soil amendment with manure. There are numerous options out there that will give you the results you want while still giving the soil what it needs with regard to fresh organic matter, nutrients, and trace minerals.
There are many common things within your own house that you may consider trash that can be added directly into your containers, raised beds, and garden in general! These non manure options will surprise you with their added benefits such as used coffee grounds that will also help keep the slugs away. This is just one example of ways you go fertilize with no manure!