玉米是需水较多的作物,特别是近年来随着种植密度、施肥量的增加和玉米产量水平的高产,玉米的需水量有较大幅度的增加,水分不足问题日益突出。吉林省属旱作玉米区,降雨不足、季节性分布不匀,降水分布与玉米需水规律往往不能吻合,已成为制约玉米高产稳产的首要自然因素。基于此,介绍了三种化学制剂ABT生根粉、抗蒸腾剂、保水剂的功能、增产效果和使用技术,以供参考。 In recent years, with the increase of planting density, fertilizing amount and high yield of corn, corn has more substantial increase in water demand, and the issue of water shortage has become increasingly prominent. Jilin Province is a dry maize area, lack of rainfall, seasonal uneven distribution of precipitation and corn water demand often does not match, has become the main natural factors restricting the high and stable yield of corn. Based on this, three kinds of chemical ABT rooting powder, anti-transpiration agent, water-retaining agent function, production effect and using technology are introduced for reference.