High Nitrogen Fertilizer
Have you ever wondered what those three numbers are that are on the fertilizer packages? 15-15-15, 28-4-6, 10-10-10, 18-24-12. The technical term for this is N-P-K. Nitrogen, Phosphorous, and Potassium.
So why are the numbers important? The numbers tell us how much of each element is in the product. It is important to know what you need for your plants before applying the fertilizer. Too much of one element can dramatically change the pH of the soil and harm the plant.
How do I know what combination I need? A soil test is the most efficient way to know what you need. This is done through the agricultural extension agency. Dig down about six inches and get a finger full of dirt, from about 6-12 areas in the yard. Mix it all together, let it dry and take it to your local co-op for it to be sent off for testing. Your results will come in the mail in about 6 weeks.
The quickest, non scientific way to know what the fertilizer does, is to remember this. The first number, nitrogen, controls the top part of the plant. It greens up the plant and makes it grow fast. The second number, phosphorous, controls the middle part of the plant. Helps to strengthen the stem and trunk structure. The third number, Potassium, controls the root structure. It helps develop stronger roots for support of the entire plant.
One thing to know is Phosphorous and Potassium will stay in the soil for long periods of time, so you can add too much of these. Nitrogen, however, leaves the soil very rapidly. Reapplying Nitrogen is very necessary for healthy plants.
Happy Fertilizing
