高寒区塑膜顶凌覆盖节水技术探讨

文中通过试验研究，系统分析了顶凌覆盖技术在高寒区节水增温保湿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有效的实用技术，在高寒地区具有广泛的推广价值。

Study on Water-saving Technique with Plastic Membrane Covered on the just Thaming Farmland in High-cold Area

Through experiment and research,this paper systematically analyzes the mechanism and applicationeffects of the technique with plastic membrane covered on the just thaming farmland in hihg-cold area.They aresaving water,increasing temperature,maintaining moisture,increasing yield and increasing income.This paperpoints out that this technique can release the perplexity of lowtemperature,drought,especially the spring droughton the agriculture production,it is a effective practical technique to release drought,to ensure spring seeding andtoincrease yield and income,and has higher populariaingvalue in the high-cold ares.