Botulinum toxins are the most lethal toxins known. For type A toxin, the toxic dose is estimated at 0.001 mcg/kg (Franz 1997); the lethal dose for a 70-kg person by the oral route is estimated at 70 mcg, by the inhalational route 0.80 to 0.90 mcg, and by the intravenous route 0.09 to 0.15 mcg (Sobel 2005).
1 hectare = 2.47105381 acres. .07 hectare= .17 acres per person. about 7500 square feet per person. While this figure produces a result of around 5-6 people per acre, there are plenty of caveats to consider. If the soil is not ideal, increase the land. If the growing season is short, increase the land.
One Acre Feeds a Person. With the holiday season behind us many are feeling the effects of eating a bit too much and are working on a New Yearâs resolution to shed some pounds.here is no gain in meat produced per acre by feeding grains to ruminants compared to feeding on pasture. Pasture is much more productive in terms of plant biomass yielded per year than corn since the plants are perennial and grow actively year-round in many areas.