Mulched up leaves (Apple, Maple, Oak, Beech, Cherry, Pear and so on) are loaded with micronutrients and good old Horse, cow and chicken manure are a great accompaniment and aid in the conversion of the leaves to the soil.
Coffee grounds are also great, they are a green like manure. Blood meal is good but, it will cost you money.
Also, Rock Phosphate is a great fertilizer which has a decent NPK ratio but, more importantly it aids in forming soil colloids and actually helps to build your soil and therefore makes a more healthy ecosystem for you plants.
And Kelp meal is another one that is great. Full of micro and macro nutrients and can be considered a green.
So, using all these fertilizers, make sure that you have a lot of leaves such that you have about a 50:50 ratio of greens to browns(leaves).
By the way, Rock Phosphate is amazing stuff! The helpful gardener himself told me about and it works miracles for your plants (indirectly).