When is the filling period of corn?

The filling stage of maize refers to the grain formation stage of maize, which needs sufficient nutrients and water. Generally, corn will enter the filling stage around July. When corn enters the filling stage, the weather with high temperature and little rain is beneficial to corn filling, but it is easy to cause drought in the field and affect corn filling. In order to strengthen the irrigation management of corn during grain filling, prevent the loss caused by drought in the field and lay the foundation for normal maturity of corn. It should be noted that: 1 For plots where phosphorus and potassium fertilizers have been basically applied and urea has been topdressing more than 20 kg, the application of chemical fertilizers should be controlled in the later stage, with irrigation as the main method. 2. For the plots with insufficient basic application of phosphorus and potassium fertilizer and less than 20kg of urea topdressing, 3kg/mu of urea and 0.5kg/mu of phosphorus and potassium fertilizer can be appropriately applied during the recent drip application period to prevent corn topdressing in the later period. 3, grouting water is good, to prevent adverse grouting caused by drought. 4. Special tips from agricultural technicians: Don't blindly fertilize corn during grain filling. Excessive fertilization will delay the maturity of maize or lengthen the dehydration time, which will have an impact on the increase of harvest or yield. Leave roots and leaves at the filling stage to promote grain filling, and trace elements such as zinc and boron fertilizer are not needed at the later stage.