This is a visual rehabilitation device. It has the function of history storage. In order to facilitate the use of training again, users can store the training mode. Next time, the training mode only needs to be called. Our products have two dimensional vision tracking and circular vision tracking
Visual Rehabilitation Equipment Low Vision Devices,Blind Cane,Computers For The Blind,Visual Rehabilitation Equipment jinan Fangqi Sunshine education consulting CO.,LTD. , https://www.fzrehabmarket.com
Specific control methods: Before sowing, use 1500 times Shennong chelating fertilizer, 5000 times Yunda 120, 1000 times potassium permanganate mixture soaking for 5 hours to 6 hours to eliminate the bacteria adsorbed on the seed. At the time of transplantation, the roots of the above mixture were used to eliminate the bacteria that had been adsorbed on the seedlings. After planting, spray 2 times to 3 times of metalaxyl 800 times, ff cream 600 600 times, or carbendazim 800 times, pay attention to wet the roots and necks, once every 7 days to 10 days. In addition, it is necessary to sprinkle a small amount of ash on the roots and necks every 2 days to 3 days to dry the roots and necks, and spread them 3 to 5 times.
Cucumbers in early spring must prevent devastating
When cucumbers are grown in early spring, they are prone to damping-off due to high humidity. After the yellow stems appear on the base or middle of the stem, the seedlings die.