Stages of the Innovation-Decision Process (Everett Rogers, 1983/2003):

• Knowledge (C): An individual is exposed to the innovation's existence and gains an understanding of how it functions.
• Persuasion (A): The individual forms a favorable or unfavorable attitude toward the innovation.
• Decision (B): The individual engages in activities that lead to a choice to adopt or reject the innovation.
• Implementation (D): The individual puts an innovation into practical use.
• Confirmation (E): The individual seeks reinforcement for an innovation-decision already made.
  Correct sequence: Knowledge (C) -> Persuasion (A) -> Decision (B) -> Implementation (D) -> Confirmation (E).
  Sequence: (C), (A), (B), (D), (E).

Eugene A. Wilkening (1953) pioneered the sequential stages of the farm adoption process:

• Awareness (C): Initial consciousness of the existence of the new farm practice.
• Obtaining Information (A): Actively seeking detailed facts, requirements, and operational data regarding the practice.
• Conviction / Evaluation (E): Weighing the pros and cons and developing psychological acceptance that the practice is feasible and advantageous on one's own farm.
• Trial (B): Small-scale practical testing on a limited portion of the farm.
• Adoption (D): Full-scale integration and continuous long-term practice.
  Correct sequence: (C) -> (A) -> (E) -> (B) -> (D).

Concept of Preventive Innovations (Rogers):

• Preventive innovation is a new idea that an individual adopts now in order to lower the probability of an unwanted future event occurring.
• Seed treatment with fungicides, insecticides, or bio-agents is performed prophylactically at the time of sowing to protect against potential future soil- and seed-borne disease infections and pest attacks.
• Line sowing, fertilizers, and seed drills are incremental production-enhancing innovations, not prophylactic/preventive.