First, fertilizer and water management
During the rosette period of Chinese cabbage, the growth rate and growth amount are very fast, and the amount of fertilizer is required to increase. The early stage of rosettes should be topped off with “smoothing†fertilizer, applying 8-10 kilograms of urea per acre. The method is to open a 10 cm sulcus on one side of the ridge, fertilize and seal the ditch, and pay attention to minimize the root damage.
Second, seedlings to promote root
From the middle stage of rosette to the bulb stage, Chinese cabbage was controlled by watering and seedlings were planted. The control was prosperous, which resulted in the thickening of the leaves, the development of the root system, the accumulation of nutrients, the reduction of humidity in the field, and the occurrence and development of diseases. The seedling time ranges from 10 to 20 days, and the leaf color changes from green to yellow or slightly wilting at noon. The following conditions were less seedlings: short-growing and fast-growing varieties, late sowing, transplanting of large seedlings, poor seedlings, high dry and dry temperatures, and lack of water and sand-fed land.
Third, pest and disease control
The diseases of Chinese cabbage during the rosette period mainly consisted of downy mildew and soft rot. Control methods: First, control humidity to prevent downy mildew, soft rot. The second is to find the disease, timely medication, and control the development of the disease.
Hearing aid manufacturers strive to optimize their wireless hearing aid offerings both in terms of connection reliability as well as power efficiency. Variance across patients and listening conditions can make optimizing wireless hearing aid systems a complex process.
Factors such as connection distance, proximity of reflective surfaces, interference from other wireless devices, and energy loss through body absorption must all be factored into the hearing aid design. For example, indoor wireless performance may be very different from wireless performance experienced outdoors, where the only reflective surface may be the ground on which the hearing aid user is standing. Furthermore, individual differences in body geometry increase the variability that wireless engineers must account for when designing a system that provides each user with a consistent and reliable experience.
As awareness of wireless hearing technology grows, hearing healthcare professionals may notice an uptick in long-term safety concerns. Consumers should be confident knowing that wireless hearing aids are safe and strictly regulated medical devices that meet governmental wireless communication standards in addition to those set forth for medical devices.
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