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What should we pay attention to when urea is used as foliar fertilizer?

Published: 2024-11-09 Author: mysheen
Last Updated: 2024/11/09, What should we pay attention to when urea is used as foliar fertilizer? Please introduce urea as foliar fertilizer to pay attention to the following points: do not spray it before hot weather or rain, so as to avoid burning seedlings or losing fertilizer. It is appropriate to spray every morning or afternoon, and spray again every 7-10 days. For cereal crops.

What should we pay attention to when urea is used as foliar fertilizer? Please introduce urea as foliar fertilizer to pay attention to the following points: do not spray it before hot weather or rain, so as to avoid burning seedlings or losing fertilizer. It is appropriate to spray every morning or afternoon, and spray again every 7-10 days. When spraying cereal crops or crops with smooth leaves, add 0.1% adhesive (such as washing powder, washing), etc. Otherwise, the effect is not good. For urea used for spraying, the content of biuret should not be more than 0.5%, otherwise it is easy to damage the leaves. The concentration of urea solution required to be sprayed varies with different types of crops. in general, cereal crops require a spraying concentration of 1.5%-2%, and the concentration is even lower when spraying at flowering stage. The spraying concentration of leafy vegetables and cucumbers is 1%-1.5%, and that of tomatoes is 0.3%. 0.5% is suitable for apple, pear, grape and other fruit trees. Click to get more foliar fertilizer application methods

 
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