Spinach is one of the strongest cold-tolerant vegetables in green leafy vegetables. In the winter, the minimum temperature of spinach is about 10 °C, and the open field can completely overwinter. Some varieties with strong cold resistance can withstand short-term low temperatures of 30-40 ° C when there are 4-6 true leaves. Spinach has wide adaptability, the suitable temperature for growth is 15-30 °C, the optimum temperature is 15-20 °C, and the seeds can germinate at 4 °C. The soil in early spring can be sown when the soil is thawed. The suitable temperature for germination is 15-20 °C. When the temperature is higher, the germination rate is lowered.

The spinach flowering of spinach is affected by the length of sunshine, and the convulsion is accelerated as the temperature increases and the number of sunshine hours increases. Spinach is not tolerant to drought, and it grows vigorously in a humid environment. The quality is good. When the soil is dry, the growth is slow, the leaves are aging, and the quality is poor.

The requirement of spinach for soil is that it can be cultivated except for acidic soil, and other soils can be cultivated, especially in moist and humus-rich sandy loam soil. Spinach is a fast-growing vegetable with high planting density and high yield, so there needs to be sufficient quick-acting nutrient supply during the growing season.

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Household Wheelchair

Household Electric Wheelchair is an important Household Medical Equipment for the wounded, sick and disabled at home for rehabilitation, turnaround transportation, medical treatment, and outings. The Electric Wheelchair not only meets the needs of the physically disabled and the disabled, but more importantly, it is convenient for family members to move and take care of them. Patients, so that patients with the help of wheelchairs for physical exercise and participation in social activities.

Ordinary wheelchairs are generally composed of a foldable frame, front and rear wheels, left and right knee pads and footrests, left and right detachable armrests, handle brakes, seats, backrests with medical imaging data bags, bedpans, urine bag hooks, and electric standing. The hand-crank Rehabilitation Electric Wheelchair adds a hand-crank device on the basis of the ordinary wheelchair. On the basis of ordinary wheelchairs, the electric wheelchair adds an electronic power assist system, which reduces the physical exertion of the user. Based on the Electric Wheelchair, Folding Hospital Wheelchair adds positioning movement, standing movement, remote control movement and related Internet + assisted living.

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