Seed blending

• The process of mixing two or more dissimilar seed lots produces overall uniformity in the final seed lot.
• The Pearson square method is adopted for finding out the proportions of different seed lots.

• There are two types of equipment used for blending different seed lots.

a. Batch blending equipment

• When small quantities of seeds are to be mixed into different batches, the three types of blenders; Rotary drum blender, Conical mixtures, and Vertical spiral blenders are used.

b. Continuous blending equipment

• When huge quantities of seeds are to be mixed into different batches four types of equipment; Continuous centrifugal blender, Horizontal blender, Bin-feeding devices, and Multiple bin arrangements.