It is said that stable manure is principally a soil improver. Also that it is a fertilizer. For cabbages its is recommended not to fertilize their beds. So, what is it with stable manure, and should I or should I not apply it to cabbage beds?
Any organic material is a soil improver. Stable manure is relatively low in nutrients, compared to chicken and pig manure, the richest.
Allow it to rot down well and apply before potatoes, sweet corn, courgettes.
It can make cabbages too leafy and rank. But that depends on the soil, if the soil is light it might benefit from some extra feeding.