State Agriculture Minister K Kanna Babu said the innovative Rythu Bharosa Kendras would play a key role in knowledge transfer to farmers. Amaravati: The Andhra Pradesh government on Monday signed a "path-breaking" memoranda of understanding with 11 premier agricultural institutions in the country to usher in revolutionary changes in the sector through technology and knowledge transfer to farmers in the state. The institutions will provide "holistic technical assistance", leading to sustainable increase in farmers income using organic and natural farming processes.