Hydroponic nutrients are the foundation of any hydroponic system. Without nutrients, the plants simply cant stay alive. This being said, there are always going to be mistakes and miscalculations, and either one can add too many or too few nutrients to the system.
With a little information, you should be able to spot some of the more obvious signs and be able to pinpoint the specific deficiency. After growing with hydroponics for a little while (and some trial and error), you should be able to quickly master your garden and be able to spot and eliminate any problems which may arise. Once you have spotted the correct deficiency, you can then add certain solutions to counteract the issues at hand.
It is essential to provide your plants with a well-balanced and pre-measured amount of hydroponic nutrients every time they are added. Under (and over) use can lead to some deficiencies one way or another and they will have to be dealt with accordingly. Some deficiencies are minor and do not really pose a problem, but most can be devastating to your plants and can often cause them to become stunted for life.
Growers can easily learn to identify the signs of hydroponic nutrient deficiencies and deal with them accordingly. Below you will find a list of the signs and symptoms for the most common minerals found in hydroponic nutrients:
Plant leaves are a pale yellow color and the undersides of the leaves and stems turn a purplish color.
This causes plant to become stunted and turn dark green in color. The symptoms normally effect old growth first and they often cause plants to delay their flowering period.
The leaves start to turn yellow and will be scattered with brown spots everywhere. This will quickly lead to plant tissue damage and, if the deficiency is left unchecked, the leaves will start to curl up.
Magnesium deficiencies are often found in tomatoes due to their low tolerance to this. You can spot this deficiency when the older leaves start to turn yellow between the veins while the remainder of the leaves stay green.
A Calcium deficiency usually affects the younger growth rather than the old, and these will display themselves as distorted and massively curled. You will also see small little holes on the foliage.
This deficiency shows as a distinctive yellowing on the center of the leaves which slowly spread outwards. If this is left unchecked, your leaves will start to take on tissue damage and die off.
This kind of deficiency depends on the plant type, but if it is present, you will start to see brownish dry areas and the leaves will certainly drop a bit.
Plant stature is reduced somewhat, and often leads a plants growth being stunted. Also you will see the tips of the plants roots turning brown.