SLURRY

Definition

A thin paste of suspended solid particles in a liquid.

Definition

slurry: A paste consisting of a suspensionof a solid in a liquid.

Definition

A thin, watery suspension; for example, the feed to a filter press or to a fourdrinier machine; also a stream of pulverized metal ore. A special use of this term refers to a type of explosives called “slurry blasting agents” based on gelatinized aqueous a

Agricultural Uses

Slurry is a paste consisting of a suspension of finely divided solids in a liquid. Slurrying technique is used in the manufacture of phosphoric acid by wet process. For example, a slurry prepared out of microbial cultures (like Rhizobium, Azotobacter, Azospinllum cultures, etc) in water is applied to seeds before sowing so as to facilitate the root-nodule production for nitrogen-fixation, especially in legumes.
Slurry fertilizers are fluid mixtures containing dissolved and undissolved plant nutrients which are used because of their low cost, availability of higher grades, capacity for mixing easily with sparingly soluble micronutrients, herbicides and insecticides. To ensure homogeneity, these materials are continuously agitated mechanically.
Slurry fertilizers have grades like 7-14-21, 3-10-30, and 4-12-24. Secondary nutrients and micronutrients from relatively cheap sources, herbicides and pesticides can be blended satisfactorily. Also as there is no problem of salting-out, high analysis grades can be formulated easily. The most popular phosphate material used in slurry fertilizer is ammonium polyphosphate.
The major disadvantages of slurry fertilizers are their higher viscosity and settling characteristics. Hence, they are not easy to handle and store. All nutrients are not immediately available to crops through slurry fertigation. The slurries transmit diseases that can be controlled, if slurries are used only on arable land. The harmful
organisms die if slurries are stored for at least 60 days.

Raw materials

Preparation Products