冷凉气候区水稻高产的一种地温调控技术

The Regulating Technique of the Soil Temperature for Rice Output Increase in a Cold Climate

通过分析敦化市历年水稻产量和 6～ 9月 5 cm平均地温的关系 ,提出水稻高产的地温指标。根据不同年份和水稻的不同发育阶段采取不同的灌溉措施 ,通过调控5 cm地温使之达到高产的要求。通过 1 986～ 1 990年的试验 ,水稻均获得了高产 ,提供了冷凉气候区水稻高产稳产的一种调控技术。

By analyzing the relation of annual rice output and the average soil temperature at 5cm level from June to September in Dunhua city,Jilin Province ,the technique of the soil temperature index was presented according to different time and growth stages of rice.By regulating soil temperature at 5cm level,the highly efficient production according to the four year test from 1986 to 1990 was obtained.A regulating technique of the soil temperature for steady rice output increase in a cold climate was suggested.