The invention relates to the technical field of
agriculture, in particular to a northern
cold area rice well
water irrigation temperature increasing
system and an
irrigation method. One end of a wateroutlet
pipe is connected on a pipeline on a water pump, the other end of the water outlet
pipe is sealed, a plurality of holes are formed in the water outlet
pipe, the water outlet pipe is mounted ona water dispersal plate, a water outlet position of the water dispersal plate is connected with a sunning
water pool, an
irrigation canal is arranged between the sunning
water pool and a rice field,a temperature increasing shed is arranged on the
irrigation canal, a water inlet and a water outlet are formed in two sides of the rice field and connected with a water inlet canal and a water outletcanal, and the water inlet canal is connected with the irrigation canal. According to the
system, a
water storage device, a water transmission process and the irrigation method are optimizes, the temperature of water is improved to 16 DEG C or more from 8-10 DEG C at a well head when well water enters the rice field, physiological requirements of rice for
moisture and temperature are met, growth period process of the rice is accelerated, effective tillering rate is increased, head
sprouting in a safe head
sprouting period is ensured, maturing rate is increased, thousand seed weight is improved, yield-increasing effect is remarkable, average increase yield is 7% or more, and an economic benefit value is increased by 1500 Yuan per
hectare.