A little more than that here's a quick reference:
Post# of 1456
Hemp fibre is the longest, strongest and most durable of all natural fibres. Hemp cultivation requires no chemicals, pesticides or herbicides. Grown in rotation with other crops such as corn and legumes, hemp farming is completely sustainable. Hemp produces four times as much fibre per acre as pine trees. Hemp tree-free paper can be recycled up to seven times, compared with three times for pine-pulp based papers. Hemp is easy to grow, and actually conditions soil where it grows. The seed and seed-oil are high in protein, essential fatty and amino acids, and vitamins. Hemp would be an ideal source of biomass for fuel, and hemp Ethanol burns very cleanly.
http://hempethics.weebly.com/industrial-hemp-...nabis.html