Foliar spraying urea four attention

Do not spray in hot weather or before raining, so as not to burn seedlings or lose fat. The spraying time is appropriate every morning or in the afternoon. After spraying, it is sprayed once every 7-10 days.

For the application of cereal crops or smooth-leaf crops, add 0.1% of adhesive (such as washing powder, wash clean) and so on. Otherwise, the effect is not good.

For spraying urea, biuret content should not be higher than 0.5%, otherwise it is easy to damage the blade.

Different types of crops require that the concentration of sprayed urea solution is also different. In general cereals require spraying concentration of 1.5% to 2%. When spraying at the flowering stage, the concentration is even lower. The spraying concentration of leafy vegetables and cucumbers is 1% to 1.5%, and 0.3% for tomatoes. Apples, pears, grapes and other fruit trees are suitable for 0.5%.

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