顶凌覆盖节水增产技术研究

通过1998年、2000年的试验研究，系统分析了顶凌覆盖技术在高寒区节水增温保温、增产增收的机理及其应用效果。提出该技术可以缓解低温干旱特别是春旱对农业生产的困扰，是一项可以抗旱保春播增产增收的实用技术，在高寒地区具有较高的推广价值。

Study on the Water -saving and Yield -increasing Techniques with Slush Covering

Through the experim ental investigation m ade in 1998and 2000,this paper system atically analyzes on the m echanism and application results of the slush covering technique in the high -cold regions'water saving,heat in- creasing,m oisture m aintaining,yield increasing and harvest increasing,and points out that this technique,which can release the perplexity of the low -tem perature drought especially the spring drought on the farm ing production,is a practicable droughtresisting technique can increase the yield and harvestand has higher popularizing value in the high - cold regions.