In the first and third time, when the first time the seedlings were “pulling the cross†(two leaves and one heart), the seedlings that were too late to emerge, and whose cotyledon shape was not normal, grew weak or crowded. The second time the seedlings had about 2-3 seedlings on the 5-6 days after the "crossing", the young seedlings with normal leaf shape and strong growth were selected. The third time the seedlings were in 5-6 leaves, the seedlings were 10-12 cm apart. According to different species, the group trees are planted or planted according to a certain plant spacing, and the seedlings are planted in the seedling stage to replace the weak seedlings and diseased seedlings. Second, diligently pouring small water, timely drainage Although the seedlings need not much water, but the high temperature, ground water, to keep the soil moist, reduce the risk of high temperature, reduce the virus infection rate of the end of the virus. When there is little rain during the seedling stage, use the gap and time seedlings to stop the rain, increase the amount of seedlings, and apply 3-4 kg of Urea per mu. After the heavy rain, the water in the urn should be drained in time to prevent rot. Third, after fertilization and seedlings, if the field seedling growth is not neat, the weak seedlings can be poured 2-3 times 200-300 times the urea water, prompting the weak seedlings to grow quickly. Seedlings are ploughed once during the seedling stage and soil is cultivated around the seedlings. In combination with watering, a priming seedling fertilizer and a hair tree fertilizer are applied, and urea is applied at a rate of 5-6 kilograms per acre. Fourth, the prevention and treatment of pests and diseases Chinese cabbage seedlings can be used to avoid 50% of the worm mist WP 2000 times or 1000 grams of locust spray control, and prevent other pests, anthrax can be used 50% anthrax 500 times Fumei spray.
Solar Energy Hardwares
Channel nuts are used with Channel Support Systems. The grooves along the edges act as small teeth that can lock onto the channel when tightened. Channel systems are designed for multiple applications, including supporting containment and pipe brackets for all types of electrical and mechanical installations and are a key part of making sure all the infrastructure stays together.
Yokelink Channel Nuts made by carbon steel or Stainless Steel. Nut size 34.5X19 mm, thickness could be 6 mm, 8mm, 9mm, 10mm, 12mm. Zinc plated or Hot Dip Galvanized finish. For different applications, you need different types of nuts. All Yokelink's channel nuts are available in M6, M8, M10 and M12 .Find out from us for the different variations of channel nuts for your application.
Solar Energy Hardware,Spring Channel Nut,Solar Mounting Channel Nut,Stainless Steel Spring Nut Ningbo Yokelink Machinery Co.,Limited , https://www.yokelink.com