Radish hollow reason and prevention

The root cause of fleshy roots is the rapid growth of cells, the lack of nutrients, and the rapid decrease in nutrient content in cells. Hollow mainly occurs when the growth of the leaf is nearly stopped, and the roots of the flesh expand rapidly, which is related to varieties, cultivation conditions and cultivation techniques. For example, early-maturing varieties are hollow, late-maturing varieties are hollow, sandy soils are hollow early, and hollow clay soil is late; poor soil drainage, high temperature and drought, uneven fertilization, and insufficient water supply are easy to hollow; too late harvesting or convulsions and flowering are also easy. Cause hollow. In order to avoid or reduce the occurrence of hollow phenomena, the above-mentioned various adverse factors should be avoided in cultivation.

Power Wheelchair

The fundamental difference from traditional electric scooters, battery scooters, bicycles and other transportation tools is that electric wheelchairs have intelligent operating controllers. According to the different operation methods, there are rocker-type controllers, and controllers controlled by various switches such as the head or blowing system. The latter is mainly suitable for severely disabled people with upper and lower limbs. Nowadays, electric wheelchairs have become an indispensable means of transportation for the elderly and the disabled. It is suitable for a wide range of objects. As long as the user has a clear consciousness and normal cognitive abilities, the use of electric wheelchairs is a good choice, but it requires a certain amount of space for activities.

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