Potato flowering and potato management points
When potato growth gradually enters the flowering and potato-growing stage, it is the most critical period of field management. In order to ensure high yield of potato, we must do the following: 1. Timely soil At present, the phenomenon of thin soil ridges is widespread, and it is easy to produce green potatoes, which affects commercial properties. It must be combined with cultivating large soil for 1 time, 2 to 3 cm thick, covering the entire mulch to prevent the occurrence of green potato. 2. Top dressing Foliar spray fertilizer should be applied to the plots with weak potato plants and yellow leaves. It can also be sprayed with 0.3% urea or potassium dihydrogen phosphate. The concentration should not be too large to avoid burning the leaves of plants. 3. Controlling the length According to field investigations, individual plots have a long history and the plant growth is particularly strong. It is necessary to spray "paclobutrazol" in time to regulate and promote the transformation of vegetative growth to reproductive growth. The buds that appear are promptly removed to avoid the consumption of nutrients. 4. Water management From the seedling stage to the bud stage, the soil should be kept moist to facilitate the vegetative growth of the plants. Generally, when the seedlings are in the seedling stage, the water can be poured once, especially in the bud stage, the flowering stage and the potato season. In the three periods, the water is poured once in the weather. The first is to increase the temperature, and the second is to cool down, in order to facilitate the formation and expansion of the potato pieces. The water should be poured along the furrows. It is best not to cross the ridges to prevent the soil from being knotted, and stop the watering 7 days before the harvest. 5. Pest control   (1) Diseases . The most serious damage is early and late blight. It was found that the central disease plant sprayed 25% of the toxic mildew WP 800 times solution or 72.2% of the 650-800 times solution or 72% of the DuPont syrup 700-800 times solution or the 25% toxic mildew WP. 1000 times solution, once a week, 2 to 3 times can control disease development. (2) Pests. The pests that damage potatoes are mainly 28-star ladybugs and aphids. The 28-star ladybug can be sprayed with 20% deltamethrin emulsifiable concentrate 1000-1500 times in the initial stage of larval egg hatching, sprayed once every 6-8 days, even sprayed 2~3 times; mites can be 5% acetamiprid 1000-1500 times of emulsifiable concentrate or 1000-1500 times of 5% imidacloprid, spray once every 7 days, and spray 2 to 3 times. These test kits are performed on blood samples from infected persons became a useful tool in elucidating the links between several cases. These links would not have been made if viral particles were looked for via PCR methods. This is due to the fact that the patient's immune defence might be successful in eliminating the virus and hence removing any trace of where it came from. However, when specific antibodies are searched for in the same patient, they will be able to be detected because they stay within the blood for several years. Commercial immunoassay tests to detect COVID-19 include a dual ELISA test to be performed. This detects specific IgA and IgG against the virus in the blood of infected patients. There is also an automated fluorescent immunoassay system to measure quantitatively or semi-quantitatively the concentration of the targeted analyte, which can be the viral antigen or IgM/IgG. antibody diagnostic kit, rapid antibody test kit, rapid antibody diagnosis,covid-19 antibody diagnosis, antibody detection kit Shenzhen Uni-medica Technology Co.,Ltd , https://www.unimed-global.com
