sulphurise

they decided to sulphurise the soil to improve crop yield.

the researchers found a way to sulphurise water for purification.

to sulphurise the metal, they heated it in a sulphur-rich environment.

farmers often sulphurise their fields to combat pests.

it is essential to sulphurise the grain to prevent spoilage.

they plan to sulphurise the plants to enhance their growth.

to sulphurise the environment, they released sulphur dioxide.

the factory will sulphurise the materials for better durability.

she learned to sulphurise the leather to make it more resistant.

to sulphurise the atmosphere, they used special equipment.