Carbon, hydrogen and oxygen are the basic nutrients plants receive from air and water. Justus von Liebig proved in 1840 that plants needed nitrogen, potassium and See more

Plants take up essential elements from the soil through their roots and from the air through their leaves. Nutrient uptake in the soil is achieved by See more

Mobile
Nitrogen is transported via the xylem from the roots to the leaf canopy as nitrate ions, or in an organic … See more

Boron concentration in soil water solution higher than one ppm is toxic to most plants. Toxic concentrations within plants are 10 to 50 ppm … See more

At least 17 elements are known to be essential nutrients for plants. In relatively large amounts, the soil supplies nitrogen, phosphorus, … See more

Symptoms
The effect of a nutrient deficiency can vary from a subtle depression of growth rate to obvious stunting, … See more

Nitrogen fixation
There is an abundant supply of nitrogen in the earth's atmosphere—N2 gas comprises nearly 79% of air. However, N2 is unavailable for … See more