I'm from Argentina and I own 8 hectares where I'm thinking of beginning the production of aromatic plants. I don't know much about it and I'd like you to recommend me a book or especific magazine where to find out more about this matter. I know I need a dryer, as the weather here is quite humid, but the land is very good. Which are the easiest plants to start with?
Your question is so broad as to be almost impossible to answer. Further, I have never been to Argentina, so I am unfamiliar with the various habitats. However, some very important principles can be developed to assist you toward crop selections. The first is that you need to look at this question as a need to "go back to school."
It is apparent that you must do some homework on the possible alternatives available. My book "The Potential of Herbs As A Cash Crop" is a good first place to start for the herb trade, and is available through Richters. Also, I will be a participant at their annual conference in October, addressing these and related issues for the beginning farmer. You might want to make a point in attending this conference.
Now, this is another very important point. Like all schools, there is a need for tuition. No one ever really shows a profit the first year with new crops. There is the cost for learning, making mistakes, and setting up trial runs. All new ventures should be approached from this perspective, especially when you are not yet even asking the right questions. Marketing is also a major first issue toward crop selection.
Beyond that, there are more detailed books on specific crops now available. A reading list is given for various subjects or categories in my book, "Native Plants of Commercial Importance", also available from Richters. What you need to do now is begin to educate yourself with asking the right questions. This is one of the functions I serve with these responses. Perhaps we can go into this in more detail in October?