Discover the difference between organic foods and their traditionally grown counterparts when it comes to nutrition, safety and price. By Mayo Clinic Staff. Once found only in health food stores, organic food is now a regular feature at most supermarkets. And that's created a bit of a dilemma in the produce aisle. On one hand, you have a conventionally grown apple. On the other, you have one that's organic. Both apples are firm, shiny and red. Both provide vitamins and fiber, and both are free of fat, sodium and cholesterol.
Vegetable Gardening: Selecting a Fertilizer. All plants need nutrients for growth. Gardeners can provide supplemental nutrients to plants by applying fertilizers in the form of composted organic material, synthetic fertilizer, or a specific mineral such as iron.hen selecting a fertilizer, look at the three numbers on the bag. They will read something like 15-0-15 or 16-2-8. The first number represents the percentage of nitrogen in the bag, the second refers to phosphorus, and the third number is the amount of potassium.
Fertilizer Guidelines. 1  Follow the directions on the fertilizer bag carefully. 2  How much fertilizer to apply is based on the size and age of your tree as well as the percentage of nitrogen in the fertilizer you are using. 3  Lightly rake granular fertilizer into the top inch or two of soil.