Turmeric is one of the most important spice crops grown and consumed in Bangladesh. It is widely used in Bengali cooking because of its distinctive yellow color, pleasant aroma, and characteristic flavor, and it is also valued in traditional food practices and household uses. Turmeric is obtained from the underground rhizomes of the plant Curcuma longa, a member of the ginger family. Bangladesh has a favorable climate for turmeric cultivation because the crop grows well under warm, humid conditions with adequate rainfall and fertile, well-drained soil.
Turmeric farming can be an attractive agricultural activity for farmers because the crop can be grown in many areas, does not require extremely complicated machinery, and can be cultivated either as a main crop or, in suitable situations, as part of a diversified farming system. The crop generally requires a long growing period, during which the rhizomes gradually develop underground and accumulate dry matter and the characteristic yellow pigment called curcumin.