Table of Contents
What is the most important nutrient for tomatoes?
Once tomato plants are fruiting look for the following tissue nutrient levels (by dry matter)
| Nutrient | Element | Tissue nutrient level |
|---|---|---|
| Nitrogen | N | 3.5-4% |
| Phosphorus | P | .8-1% |
| Potassium | K | 3+% |
| Calcium | Ca | 2.5-3% |
What nutrients should I give my tomato plant?
Choose a fertilizer that has a balanced ratio of the three major elements, such as 10-10-10, or where the middle number (phosphorus) is larger than the first number (nitrogen), such as 2-3-1. Tomatoes are heavy feeders and usually do need fertilizer unless your soil is very rich.
What do tomato plants need the most?
Tomato plants will grow well in well-drained sites that receive full sun for most of the day. The soil pH should be slightly acidic (6.2 to 6.8). Excess nitrogen can result in plants with lush, vigorous foliage but little fruit production.
How much calcium do I add to my tomato plants?
Adding Calcium Late
If your ground is extremely acidic and hasn't been limed for several years, then an option is to increase that amount to up to 2 cups per plant. Tomato plants grown in containers need 1/4 cup of dolomite lime for every 10 quarts of potting soil.