Foliar Nutrition—In this type of process fertilizers, growth hormones, mineral nutrients and several other chemical substances are directly applied to the plants on their leaves. They are dissolved in water and sprayed on the leaves of plants. Such an application of nutrients is called foliar nutrition.

Advantages of Foliar Nutrition—The foliar nutrition has several advantages—

1. It reaches the desired tissues more quickly as compared to the soil nutrients. 

2. It is more economical means of fertilizing crop plants particularly costly micronutrients.

3. It is a useful method for accelerating growth and development during flowering and fruiting.