Plants need nutrients for the same reasons that animals need them. They need them to germinate, grow, fight off diseases and pests and to reproduce. Like animals, nutrients are needed in larger, smaller or trace amounts for the plant to stay healthy.

How nutrients affect plant growth?

Plant growth and development largely depend on the combination and concentration of mineral nutrients available in the soil. ... Symptoms of nutrient deficiency may include stunted growth, death of plant tissue, or yellowing of the leaves caused by a reduced production of chlorophyll, a pigment needed for photosynthesis.

What plants need nutrients?

Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.