Agrochemical company(user) should be able to post farming information.

Logged in agrochemicals companies should be able to post farming best practice information on a certain topic for farming a particular product.

Start by reviewing the frontend entry points and existing authenticated user flows to find where agrochemical companies are represented. Define the screen or form needed for a logged-in company to post farming best-practice information tied to a topic and product. Done means the company can submit that information and it is handled consistently with the project's existing frontend patterns.

Written by the indexing model from the issue text.