Urine Tube,Sediment Tube,Urine Centrifuge Tube Rong Tai Biochemical Engineering Co., Ltd. , http://www.shpipette.com
Artemisia halodendron can be sowed three
Artemisia halodendron can be cultivated in spring and autumn, but it can also be used for greenhouse production in the winter; it can be harvested in three seasons per season, yielding about 1,500 kilograms per mu. The optimum sowing date for sowing of Artemisia halodendron in the appropriate period is from the startling to the spring equinox. Before and after the autumn sowing in the white dew, the seeds can be soaked with fresh water for a day and night, and dried in the shade until the buds are mixed with fine sand. Winter sowing should be soaked in the seeds in mid-November and sown in a greenhouse before the snow. The "three broadcasts" of Artemisia halodendron is about 0.85 kilograms. Management points should be removed after sowing and before sprouting. It can use 25% of herbicide ether with 0.25-.. 5 kg of mu, and watered with 60 kg of water. Spray evenly with sprayer (agitate the liquid frequently when spraying, to prevent precipitation from affecting the effect). ); can also be required to dilute 400 kg of water per acre with a kettle, or with 25 kg of fine soil (fine sand) and mix well spread in the field. At the same time, it should be noted that water should not be applied 2 days after the application, and it should not be used for 7 days. When planting seedlings, water should be poured. When seedlings emerge, they should be poured with 1 seedling water. After emergence, they should be cultivated, weeded and preserved. After Qi Miao, if the seedlings are too dense, you can use a ten-tooth rake to gently chop 1 time and remove some seedlings. When the height of seedlings is 3.5 cm, the seedlings shall be seeded with 3.5 cm square. Seedlings should be watered less, and the soil should be kept moist in the middle and late stages of growth. After interplanting, setting the seedlings and harvesting each time, each cultivating 10-15 kg of urea. Timely harvesting spring sown Artemisia halodendron seedlings 20 to 30 cm high, leaving 5 cm cut off young shoots, then harvested once every 15 days, a total of 3 can be received. The first crop was harvested before and after the sowing of Artemisia serrata in autumn, and the second crop and the third crop were harvested at the end of December and the end of January in the following year. Winter sowing Artemisia halodendron should pay attention to raising roots and strong seedlings in the early stages, to promote its rapid growth in the later stages, to mention the morning market, to fight for the first harvest in early March next year, the second and third in late March and mid-April. Precautions The temperature requirement of Artemisia selengensis in protected cultivation is: the optimum temperature for growth is 186°C, the maximum temperature for adaptation is 30°C, and the minimum temperature is 2°C. Therefore, the seedlings should be sowed in the autumn before and after the start of winter. After the shed is shed, the water should be properly controlled, and the weather should be ventilated in a timely manner to reduce the temperature and humidity in order to prevent rotten leaves. Winter sowing Artemisia halodendron should pay attention to protect the winter, late to prevent premature aging. In addition, we must also pay attention to the fact that the stems and leaves of the spring-baked Artemisia halodendron can no longer be cut and can not be used as seedlings; the garland chrysanthemum should not be used as a continuous crop in the previous season in order to avoid the occurrence of disease.