Stinging Nettle Production on Two Hectares

I read books with great interest. Thanks again.
I wonder if you or your friends in the company can answer my inquiry.
I want to grow stinging nettle on my land, about 20,000 square meters (2 hectares). My are very suitable place for growing nettle.
In order to do a feasibility study, I wonder how much fresh leaf I can grow and collect, and more important, how many grams of nettle seed I can collect per unit of land.

We do not have a figure for seed yields, but fresh (wet) leaf yields are 20 metric tonnes per hectare and dried leaf yields are 1-2 metric tonnes per hectare.

I want to grow nettle especially for seed. What do you think if I can collect and export seed to some possible importers. Where can I get such importers addresses?

Try the Herb Growers and Marketers Network at www.herbnet.com . That organization publishes the "Green Pages" which lists many members pf the herb industry.