Question

nitrogen , phosphorus, calcium, and pottassium are ​

Answer 1

Explanation:

Nitrogen, phosphorus and potassium, or NPK, are the “Big 3” primary nutrients in commercial fertilizers. Each of these fundamental nutrients plays a key role in plant nutrition.

it may help you

Answer 2

Answer:

Nitrogen, phosphorous and potassium or calcium are the primary nutrients in commercial fertilizer. Each of these fundamental nutrients plays a key role in plant nutrition.

Explanation:

hope it helps you