Rainfed rice - IRRI books - International Rice Research Institute

Boro Rice Cultivation
B
oro rice cultivation is a special system of rice cultivation in waterlogged
low-lying or medium land areas with irrigation during November to
May. The Boro rice system takes advantage of:
residual moisture in lands after the harvest of kharif paddy;
longer moisture retention capacity of the soil; and
surface water stored in nearby low-lying ditches, areas adjoining canals,
roads, chaur lands, etc.
Traditionally, Boro rice was cultivated in river basin deltas where water
accumulated during monsoons and could not be drained out in the winter
months. The system of Boro rice cultivation has been an age-old tradition in
Bangladesh and eastern India and is now spreading fast even outside
traditional areas where irrigation is assured.
Boro rice is known for high productivity (5-6 t/ha) in deepwater areas of
eastern India, where productivity has traditionally been very poor (