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.
Hepatitis B vaccine is a series of 3 shots. Once you have received all 3 doses you are covered and do not need any additional doses. Hepatitis B vaccine consists of three shots - but also you need to then get a blood test. The blood test will show whether you have adequate immunity or not. If you do - immunity is for life and you won't need any more shots. If you don't you will need a further booster shot and repeat blood test.