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.
How many acres of forage does it take to feed 1 cow for a year? Average Fodder requirement per cow which gives 15 Kilogram of Milk/Day will be around 20-25 Kilograms.owever, since most farmers plant somewhere around 30,000 seeds per acre, you can figure the bu â¦ shels thus: 30,000 seeds divide by 2,000 seeds per pound equals about 15 pounds divided by 56 pounds of corn per bushel equals about 1/4 bushel per acre.