As a result, soil organic materials become increasingly nutrient rich as decomposition occurs. Cereal straw, for example, is made up of carbon and nitrogen in the ratio of 100:1 when it is added to the soil. As this material decomposes and forms humus, its carbon to nitrogen ratio decreases to 12:1.
According to the 2015 Genworth Financial cost of care survey, the average cost of skilled nursing in Pennsylvania is $8,790 per month.
Pennsylvania ranked just above, and Vermont just under. The United States average cost for a semi-private room was was $222 per day. A private room was $248. Data was compiled using hourly/daily cost averages as published in the MetLife Mature Market Institute Market Survey of Long-Term Care Costs.