Northern cold area rice well water irrigation temperature increasing system and irrigation method

Abstract

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.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a rice well water irrigation and warming system and an irrigation method in the northern cold region. Background technique [0002] Northern my country is an alpine region with long sunshine, short growth period and low effective accumulated temperature; slow temperature rise in spring, short high temperature period in summer, rapid temperature drop in autumn, and frequent low temperature and chilling damage are the primary factors restricting rice growth and development, stable and high yield; The eternal theme of rice cultivation in the northern cold region. [0003] Rice is a temperature-loving crop. Studies have shown that the physiological critical temperature of rice plants is 16°C. When the ambient temperature is lower than this temperature, rice plants will stop growing; the impact of temperature on rice growth and development is manifested in two stages. One is rice...

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Problems solved by technology

[0003] Rice is a temperature-loving crop. Studies have shown that the physiological critical temperature of rice plants is 16°C. When the ambient temperature is lower than this temperature, rice plants will stop growing; the impact of temperature on rice growth and development is manifested in two stages. One is rice transplanting in spring Influenced by the low temperature at the early stage, the morphology of rice plants is characterized by slow greening of seedlings, short plants and few tillers, which mainly affect the effective panicle number of rice; the second is that the most sensitive period to low temperature is between The young microspore stage after pollen mother cell meiosis, low temperature during this period, resulting in low seed setting rate of rice plants, low 1000-grain weight, and ultimately reduced yield; Not fruiting, eventually reducing the yield and quality of rice

[0004] Since the 1980s, my country's Heilongjiang Province has vigorously developed rice planting. The existing rice planting area is more than 60 million mu, of which about half of the area is irrigated with well water. Physiological temperature required for growth; at present, effective well water heating technology has not been adopted in well water irrigation areas, resulting in less effective rice division, low seed setting rate, poor quality of rice, and low yield

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