Urea fall effect is good

Autumn application of urea refers to the application of urea to the ground during the fall or ridging in autumn for the growth and utilization of the next year's crop. The implementation of urea fall has many advantages: First, it can be applied deeply. Ammonium carbonate or ammonium bicarbonate formed by urea conversion is volatile, and if it is applied shallow, the fertilizer fraction will be greatly lost. Therefore, urea is as deep as ammonium bicarbonate, and should be tightly buried after application. However, it is often difficult to achieve the required depth when applying fertilizers or top dressings, especially topdressing. Therefore, combined with fertilization on the ground and ridiculed, it is possible to deepen the soil, easily cover soil, and reduce fertilizer loss. The second is to prevent urea burning seed burning seedlings. After the application of urea in autumn, until the temperature rises in early spring, urea will be adsorbed by the soil at any time after ammoniation, eliminating the harm to the seeds when used as a seed fertilizer. The third is the use of autumn fertilization for one operation, which not only reduces the cost of production, but also eases the strain and exertion of livestock and machinery operations during the spring planting season or the summer topdressing plant, so as to “work hard”. In addition, the fall of urea can also reduce the burden of storage and storage. Autumn application of urea can be divided into autumn and autumn. Falling on the ground and autumn is to spread the urea evenly to the ground before the fall, and then turn it into the ground and plant wheat or other crops the next year. Live rice fields or planted rice fields can also be cast in autumn. When the fall is combined with fertilization, the depth of the ground should not be too deep, otherwise, the crop will become greedy and late due to slow and late-stage fertilizer effects. The fall-riding autumn plant is ridged in the autumn before ridging, urea-filtering, and planting crops in the second year. Autumn urea can only be combined with autumn turning. It is not allowed to fertilize wheat when it is turned over. Because the temperature is high and the rain is large, the urea fertilizer spreads easily or is lost. The application of urea in the fall should be as late as possible, and it is best to be carried out before it is nearly frozen. China Agricultural Network Editor