In N-P-K, N stands for ___________________.

In N-P-K, P stands for ___________________.

In N-P-K, K stands for ___________________.

This is the element that is responsible for increase protein and yield while giving plants their green color.

This is the element that is responsible for strong root formation and development as well as aids seedlings to germinate.

This is the element that is responsible for the production of carbohydrates, seed formation and germination.

The pH scale runs from ________ to __________.

Soils that are bases are known as_____________.

Soils that have a pH of 3.7 are considered

Soils that have a pH of 12.7 are considered

Soils that have a pH of 7 are considered

Household items such as lye, bleach, ammonia, and egg whites are considered________.

Household items such as battery acid, lemon juice, and coffee are considered__________.

pH corresponds to the concentration of _______ions.

If the concentration of hydrogen ions is 1 x 10^-9M, the pH is________.

Acids give off_________, while bases give off______________.

Adding organic matter, sulphur, and manure make the soil more____________.

Adding ashes, lime, and oyster shells makes the soils more__________.

Which of the following elements is least available at a pH of 7?