Nutrient interactions: Calcium and Boron ratio
Calcium and Boron have a close relationship in the plant. Their absolute concentrations and the relative ratio between the two affects how much of each...
Category Archives: Macro nutrients
How important is the ammonium/nitrate ratio
The ammonium/nitrate ratio in the nutrient solution is important since it can have a significant effect on the quality and total yields of the tomato...
Lettuce deficiency and toxicity symptoms of macro and micro elements
It is often quite difficult to identify a deficiency or toxicity symptom in the field because they never really occur as a single element deficiency...
A list of 43 important hydroponic fertilizers
First it is important to understand which nutrients are included in the various fertilizers and in what amounts. It is important to distinguish between macro...
Here is a quick way to identify macro-nutrient deficiency and toxicity symptoms
NITROGEN Toxicity Symptoms Plants are dark green in colour with excessive amount of foliage Root growth is restricted Reduced flowering and seed production Plants wilt...
Sulphur (S) – It’s role in plant growth
Sulphur (or sulfur)is also known as the “ignored primary nutrient” since not many people realize that it is one of the macro nutrients and is...
Magnesium (Mg) – It’s role in plant growth
Magnesium was discovered by Nehemiah Grew in 1695 by evaporating mineral waters in Epsom England. It was only in 1808 that Sir Humphrey Davy isolated...
Calcium (Ca) – It’s role in plant growth
On average, more growers have calcium (Ca) related problems than any other nutrient. These problems occur in areas of low humidity and high temperatures. Calcium...
Potassium (K) – It’s role in plant growth
Potassium is the most abundant monovalent cation in plant tissue. It is highly mobile which explains why deficiency symptoms can occur so rapidly. The concentration...
Phosphorus (P) – It’s role in plant growth
Phosphorus (P) was first discovered by Hennig Brandt in Germany in 1669. It is ironic that the discovery was made when he was busy with...
Nitrogen – It’s role in plant growth
Nitrogen is consumed in large amounts by the plant. Nitrogen is used in components such as amino acids all proteins enzymes co enzymes nucleic acids...
