Can urea be used as fertilizer?
Can urea be used as fertilizer? Please introduce the production practice and show that urea is not suitable to be used as fertilizer. Urea is an amide physiologically neutral fertilizer with a nitrogen content of 46.3%. It is the inorganic chemical fertilizer with the highest fluorine content in solid nitrogen fertilizer. Urea is white or light yellow crystal, and its granule is soluble in water, so it is suitable to be used as base fertilizer or topdressing fertilizer, but urea is generally not suitable to be used as seed fertilizer. If it is used as seed fertilizer, the methods and standards are not well mastered. High concentration of urea will affect seed germination and root growth. Because in the process of urea granulation, too high temperature will produce a small amount of biuret, which can inhibit the growth of crops. It cannot be used as seedling fertilizer when the biuret content is more than 1%. Click to get more nitrogen, phosphorus, potassium application techniques click to get more fertilizer application techniques
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What should be paid attention to in the process of using urea?
How to apply urea? Please introduce that the farmland application of urea can be used as base fertilizer and topdressing fertilizer, but not suitable for seed fertilizer. Urea in the application of base fertilizer should pay attention to two points: first, cover the soil deeply, do not irrigate immediately after application, to prevent urea leaching into the deep layer. When urea is used as base fertilizer on dry land, it must be applied.
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Planting pickled mustard tuber in winter, mastering skills for high yield
Planting pickled mustard tuber in winter, mastering skills for high yield
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