The phrase "a successful practice of" is correct and usable in written English.
It can be used when discussing the effective implementation or execution of a particular method, skill, or activity.
Example: "The team has developed a successful practice of collaborative problem-solving that enhances productivity."
Alternatives: "an effective approach to" or "a proficient execution of".
In the semi-arid parts of Australia a successful practice is to alternate a cereal crop with a free seeding self-regenerating annual forage legume such as subterranean clover or medicago.
In a policy document on the "Successful Practice of Regional Ethnic Autonomy in Tibet", the government condemned the Dalai Lama for "plotting towards Tibetan independence".
The elasticity of skin is an important factor in the successful practice of skin grafting.
Few studies have investigated the factors contributing to the successful practice of process modeling.
One is its successful practice of political and financial trade-offs with Russia's regional bosses, many of whom view the Duma as little more than a nuisance.
The work of AHMM, "the most successful practice of its generation," according to the Architects' Journal, its faceted form is apparently the result of "responding to context".
Advertisers so craved his then-revolutionary and greatly successful practice of personally delivering, live and ad lib, each and every commercial that sponsors waited in line.
If Steinbrenner had adopted the successful practice of the Cleveland Indians, who signed many young prospects to long-term deals, the agent suggested, players like Jeter, Bernie Williams, Andy Pettitte, Mariano Rivera and Jorge Posada could have been signed early at a tremendous savings.
As such, our doctrine of free speech is absolutely necessary for the successful practice of oral history — for the practice of recording subjective memories of times past and often opinionated interpretations of the impact of the past on our lives today.
