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为了进一步验证高浓缩叶面营养液肥“2003”的肥效，1997年春小麦返青期，黄骅市农业局技术站在受冻害的麦田上进行了喷施试用，结果证明：在1996年秋墒好，底肥足、播期早，冬前形成旺苗，返青期遭低温受冻严重的麦出，经4月初连续喷施两次“2003”水溶液，喷后5天观查：小麦叶面
In order to further verify the fertilizer efficiency of highly concentrated foliar nutrient solution “2003”, the spring wheat rejuvenation period in 1997, Huanghua City Bureau of Agriculture technical station in the frost damage on the wheat field for the spray test, the results show that: in the autumn of 1996 good soil moisture, Base foot enough, sowing as early as before the formation of Mongolian seedlings, returning to the period of cold was cold serious wheat out, by the beginning of April consecutive spraying twice “2003 ” aqueous solution, spray 5 days to observe: wheat leaf surface