Nano urea is available in liquid form, not solid. It is a nanotechnology-based fertilizer that delivers nitrogen to plants through foliar application (spraying on leaves).

 Nano urea is available in liquid form, not solid. It is a nanotechnology-based fertilizer that delivers nitrogen to plants through foliar application (spraying on leaves). 

Here's why it's liquid:

Unique Properties:

Nano urea utilizes nanoparticles, which are very small (20-50 nm) and have a high surface area. This allows for better absorption by plants when sprayed on leaves. 

Foliar Application:

The liquid form is specifically designed for foliar application, meaning it's sprayed directly onto the plant's leaves. 

Absorption:

The small size and high surface area of nano urea particles enable them to easily penetrate the leaf surface and be absorbed by the plant. 

Conventional Urea:

Traditional urea is typically a solid (granules or prills) and is applied to the soil. 

Cost-Effective:

Nano urea is also promoted as a more cost-effective and efficient way to deliver nitrogen to crops compared to conventional urea.