Ok, so short answer is no it wont.
Plants use the channels and passages left by older decaying roots, further the microbes can use this organic matter to boost their numbers through ready access to organic matter. 80% of a plants carbon mass is to be found under the soil, and so any older root networks will boost carbon and so help enable longer term soil fertility, these old roots also provide many other critical nutrients, usually in a resonate form by the time we regrow in media. this just means our plants know what to do and the interactions with the elements can be completed with higher efficiency. Living root companion plants need to be studied, this way we can ensure there arent any risks planting two or more plants that really dont like each other. There are lots of resources on line reference which plants like which plants. I can tell you clover, alfalfa, rye, barley, many legumes, many weed plants like hogwort, daisies, etc all work well from my experience.
The only potential hazard I imagine is likely to be found in increasing carbon to nitrogen ratios, this can cause a deficit of Nitrogen in some rare cases, where microbes and plants compete for a limited amount of soil N, but this can easily be countered through the addition of vermicasts, compost, or liquid organics, all of which have plant ready N from day dot. Legumes etc can be used so long as you have an active fungal mass, we can see legumes sharing Nitrogen resources with other plant types with some regularity, so its always a good idea to perform regular CO2 burst tests to ensure you microbes are active, monitoring your plant for overall yellowing or slow growth, reddening stems etc, since this may well point to you needing to add further nitrogen at source. iNitiate is a good source and will be Bio Veg :)
When we grow any plant with biology in an organic system, we likely know the average PPM requirement of our target crop, what we must do in the circumstance is not only deliver the plant needs, but also the needs of the microbes, who use Nitrogen to decay organics in to plant food themselves. To ensure you have enough Nitrogen for both plant and soil system, we simply add 8% to the overall known plant PPM requirement, and this way we be sure to never go in to a deficit of N for our plants.
Hope that helps. Just remember, plant N ppms, plus 8% for the biology :)