If you would like to seek news about companies that specialize in fertilizers then there are resources available that you could benefit from. The best way that you could proceed would perhaps be through websites belonging to such companies as you will get to know more about them which is going to help your purposes. A good example of such a website would be Swiss Ameropa Binningen that specializes in both fertilizers and grains which you could make the most of.
You just have to know what you need to be doing as in decide whether you are seeking to do business in the fertilizer department and the reason you are looking for news and information is solely so that you can identify the right company that you could be dealing with, or you are simply researching stuff for your knowledge or for some other purposes.
If however you are looking to do business with a company that deals in fertilizers, then you will have to be strict with what you do as you will want to only be working with a reliable company that would meet your requirements effectively. You will hence want to get a list of potential companies that supply fertilizers who you could be dealing with so that you can get to learn more about them through the various reviews and ratings that should assist you to achieve your targets.