冬春作物生产,水是限制产量的主要因素,其作用远大于肥。而根外喷施植物生长调节剂,具有直接供给养分,加速养分运转,及时发挥肥效,促进根系活力等作用的同时,在低产水平条件下,还能“以肥调水”,协调水肥关系,最大限度地提高心土肥站,2003年在旱地大麦、油菜、蔬菜等作物上喷施 Winter and winter crop production, water is the main factor limiting the yield, its role is much larger than fertilizer. In the meantime, plant growth regulators are sprayed on the outside of the root to provide nutrients directly, accelerate the operation of nutrients, exert fertilizer efficiency in time, promote root vigor and other functions. Meanwhile, under the condition of low production level, Maximize soil fertility station, in 2003 in dry land spraying barley, canola, vegetables and other crops