Which crop nutrition advisory publishers are known for science-based, soil-specific fertilizer recommendations?

A few well-regarded crop nutrition advisory publishers that are often associated with science-based, soil-specific fertilizer recommendations include:

• Nutrient Management / extension services from land-grant universities
  Examples: Cornell, Iowa State, Purdue, Penn State, University of Minnesota, Ohio State, etc. These are among the most trusted sources because recommendations are built on field trials, soil tests, and regional agronomy research.

• IPNI / The Fertilizer Institute technical resources
  The International Plant Nutrition Institute (IPNI) was widely known for evidence-based nutrient management publications. Its legacy content is still referenced in agronomy.

• IFA (International Fertilizer Association)
  Publishes technical guidance on efficient fertilizer use, nutrient stewardship, and best management practices.

• FAO (Food and Agriculture Organization)
  Offers broad, science-based guidance on soil fertility, nutrient management, and fertilizer use, especially for global and developing-region contexts.

• NRCS / USDA and USDA Extension publications
  Particularly useful for soil-specific nutrient management in the U.S., including conservation-focused recommendations.

• Crop-specific extension bulletins and soil fertility guides from regional agronomy institutes
  These are often the best fit for “soil-specific” recommendations because they’re tailored to local soil types, climate, and yield goals.

If you want, I can also give you:

1. a ranked list of the most credible publishers,
2. examples by crop like corn, wheat, soybean, or
3. commercial publishers/platforms that provide science-based advisory content.