How to manage corn lodging

First, corn is a crop that requires a large amount of water but is not resistant to cockroaches. If it is because of flooding, it should be dredged in time to drain the ground drain after the heavy rain, to eliminate water in the field and reduce soil moisture.

Second, the lighter-looking corn does not need to be supported, and the plants have strong self-regulating ability. As the plants grow, they will naturally stand upright. For those with serious lodging, they can be straightened by artificial means when the ground is slightly dry after rain. Plant. The first and second sections of the base of the corn stalk are relatively fragile, and some of the roots are damaged. When the straightening is done, it is necessary to prevent breakage and increase the root injury. It is best to operate the two together. One of them catches the corn plant and pulls up from the upper part. Another person cultivated the soil in the roots; for the plots where the stems are broken, the broken plants should be removed from the field as soon as possible to avoid decay and affect the growth of normal plants.

Third, timely fertilizer, the corn after lodging is poor due to photosynthesis, physiological functions are disturbed, affecting growth and development. For a field that only catches the fat once, you can catch another fat. If the first top dressing is not applied with phosphorus and potassium fertilizer, phosphorus and potassium fertilizers should be mainly used, and 5 kg of diammonium phosphate and potassium chloride should be applied per mu. The first topdressing fertilizer has been applied with phosphorus and potassium fertilizer, which should be combined with the big bell mouth fertilizer. Urea 15 ~ 20 kg, in order to increase production.

Fourth, pay attention to the prevention and control of pests and diseases, corn is more prone to disease after lodging, pay attention to the treatment. For leaf disease, spray with 70% methyl thiophanate 800 times solution, or 50% carbendazim 500 times solution, or 75% chlorothalonil 300 times solution, every 7 to 10 days, even spray 2 ~3 times.

5. Some farmers have suggested whether it is possible to destroy Chinese cabbage, green onions or radishes. It is definitely not feasible to do so. Before it is determined that corn plants are incurable, they should not give up. Destruction is a bit blind and should be actively taken to remedy. (秋巧)