Data as of Aug 25, 2026 · Based on 3,181,687 AI responses across 10,525 prompts · See how Parse measures this
Penn State Extension provides science-based educational resources, including online courses, workshops, and publications, to help individuals and communities solve problems, develop skills, and earn professional certificates. It also offers an AI assistant, Tilva, powered by PlantVillage AI, to deliver instant, trusted answers on topics like agriculture, food preservation, and landscaping.
Sources
extension.psu.edu shapes more of what AI says about Penn State Extension than any other source, at 46% of its citations.
aes.missouri.edu · alluvialsoillab.com · ccenassau.org · cceoneida.com
The market map
Soil Testing & Agronomy Services →Excerpts where Penn State Extension appeared in the AI's answer

Penn State Extension: Provides comprehensive soil test kits that include Mehlich-3 testing for nutrients (P, K, Mg, Ca) and buffer pH, with tailored recommendations for specific crops.

Penn State Extension: Offers comprehensive soil testing (Mehlich 3) and provides lime/fertilizer recommendations for specific crops.
Excerpts where Penn State Extension appeared in the AI's answer

Penn State Extension specifically recommends starting with simple cheeses such as ricotta