Overuse of chemical fertilizers has resulted in the growth of some lawns in which decomposers cannot live. this would interfere most directly with the ability of the lawn ecosystem to?

"Wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.", based on this I say that it interferes with the ability of the lawn to regain nutrients.