Late corn top dressing

Farmers in many places today do not sow superior late-season corn after harvesting wheat to increase yields. Because of its high yield and good management, it is the dominant crop that seizes tons of grain per year. When the late corn that grows on the plane grows to a foot or more high, it is a critical period for us to get up and grow fat. There may be some farmers who are accustomed to past fertilization methods. This saves time and labor, and spreads urea on the ground. This type of open-air topdressing method can not evaporate fertilizer if it does not rain. Manpower wasted money again. At the same time, due to late fertilization of corn, it will inevitably affect corn production after autumn.
To this end, the author appeals that: The majority of farmers in the main increase in production of late corn fertilizer, among others, to change some people in the past plans to save the province to open top dressing methods, topdressing fertilizer to promote deeper. From some farmers' conclusions, the practical experience of "fertilizer can not be used for deeper stimulation and yield increase and guaranteed harvest" has been enlightened. At present, it is a good season for chemical fertilizers for late corn. The staff of the rural grass-roots agro-technical department must also go deep into the fields and impart to the farmers the benefits of deep-seeding fertilizers in late-night corn, changing the phenomenon of some people applying top-dressing on the ground.

Dental Chair

Dental chairs are one of the most widely used products in the dental field.The dental chair is used for inspection and treatment of oral surgery and oral diseases. Electric dental chairs are mostly used. The main structure is divided into 8 parts (Figure 1). The bottom plate of the whole machine is fixed on the ground, and the bottom plate is connected to the upper part of the dental chair through a bracket. The movement of the dental chair is controlled by the back of the chair. The working principle of the control switch is: the control switch starts the operation of the motor and drives the transmission mechanism to move the corresponding parts of the dental chair. According to the needs of treatment, by manipulating the control switch button, the dental chair can complete the movements of ascending, descending, pitching, tilting posture and resetting.

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