Question

Give biological reasons for the following:
Lawn grass when watered with dissolved salt dies instantly.

Answer 1

Salt restricts the moisture intake of the root system and dehydrates the leaves of the plant. Nutrients dissolve into the water and travel through the roots to the rest of the plant. A mixture of salt and water in the soil can limit root formation and growth. The lack of water causes leaves to dry out and stops photosynthesis.

Dissolved salts from water and soil are easily absorbed by the turf roots and transported to the leaves where they burn the leaves. This is the reason 'Lawn grass when watered with dissolved salt dies instantly'.