Potatoes will remove the following soil nutrients per 1,000 sq. ft. or per acre. 1  Nitrogen: 2# per 1,000 sq. ft. __ 90-100# per acre. 2  Phosphorus: 1# per 1,000 sq. ft. __ 40-50# per acre. 3  Potassium: 3.5# per 1,000 sq. ft. __ 150-170# per acre.
The best way to prevent hepatitis A is through vaccination with the hepatitis A vaccine. Vaccination is recommended for all children age 12 months or older, for travelers to certain countries, and for people at high risk for infection with the virus. The hepatitis A vaccine is given as two shots, six months apart. The hepatitis A vaccine also comes in a combination form, containing both hepatitis A and B vaccine, that can be given to persons 18 years or older. This form is given as three shots, over a period of six months or as three shots over one month and a booster shot at 12 months.
The hepatitis B vaccine is the best way to prevent infection. It is a series of 3 or 4 shots usually given over a 6-to-12 month period. It is given by an injection into the arm muscle of adolescents and adults and thigh muscle of infants and young children. All children should get their first dose at birth, and should have completed their vaccine series by 6-18 months of age. 2  Children and adolescents through 18 years of age who did not get the vaccine when they were younger should be vaccinated.