The invention relates to the technical field of rice high-yield cultivation, and discloses a northern rice high-yield
population construction and cultivation method based on light and temperature close planting regulation, comprising the following steps: S1, light, temperature and regional environment monitoring: collecting illumination and temperature data and soil and
irrigation and drainage conditions of a northern rice planting region, and establishing a regional light and temperature
change model; s2, variety matching and
sowing period determination: combining the light and
temperature sensitive characteristics of the rice variety with the
monitoring data in the step S1. According to the method, on the basis of real-time light and
temperature monitoring and a over-the-year
big data model, the key growth period and the high light and temperature period of rice are accurately aligned, the advantages of sufficient illumination and large day and night
temperature difference of northern rice areas are utilized to the maximum extent, and water,
fertilizer and field management are adjusted by dynamically adapting to light and temperature changes; and for example,
nutrient supply is optimized when illumination is insufficient, and cooling measures are taken at high temperature, so that the accumulation and
transfer efficiency of photosynthetic products is remarkably improved, the problem of insufficient utilization of light and temperature resources in traditional cultivation is solved, and a material foundation is laid for high yield.