One, planting mode 1. The cultivation of the lateral membrane shall be leveled according to the conventional planting specifications. After the membrane is laid, the membranes shall be placed on the sides of the membrane at a distance of 3-5 cm from both sides of the membrane and artificially opened. 2. Cultivation of wide and narrow rows is 80cm wide and 40cm narrow. 3, interplanting cultivation can generally be used in time, space between the sets. Common forms include: corn, beans, corn, garlic, corn, vegetables, corn, wheat and other Chinese cabbage. 4. Planting seedlings between the plants In order to increase the seeding density of the corn, it is possible to keep the individual plants in the burrows on the basis of appropriately increasing the plant spacing. It can increase 500/667 square meters. Second, control technology 1. The big horns spray chemical hormones such as robust nutrients, dwarfism, and dilute amines to control the length of corn, reduce nutrient loss and water loss, and increase production. 2, through the method of artificial castration, fertilizer regulation, hormone utilization, promote premature corn. (1) Artificial detasseling. In the early stage of corn flowering, take a ratio of 3:1, go to 3 rows of males, and leave 1 row to protect pollination, and then remove the remaining 1 row later to mature 3-5 days earlier. (2) Apply fertilizer to regulate growth period. Such methods as zinc fertilizer dressing, micro fertilizer spraying, and nitrogen control in the late can all be achieved on the basis of early emergence and early maturity of 5-7 days. (3) Hormone utilization. In the later stage of crop growth, spraying ethephon, gibberellin, etc. on the foliage can mature 3-5 days earlier. Third, pest and disease control technology The main methods for prevention and control of spider mites are: application of chemical pesticide Nisuolang (1500 times, strong killing effect on eggs and larvae, no effect on adults), and krypton (2000-3000 times, dissolved with warm water when applied), Qi Lisu (5000-6000 times), 3% of the 3991 granules are fumigated. Fourth, weed control technology 1. Atrazine for soil treatment (Atrazine, Acetochlor, B), Alachlor (Lay), Acetochlor, etc. are sprayed on the surface of the soil before filming after sowing. 2. At the seedling stage, when weeds 2-3 leaves, use atrazine, 2,4-D vinegar, and yungonsi spray on weed blades to avoid contact with corn leaves. 3, some perennial weeds can choose to use herbicides, such as Roundup, Gramoxone, etc., must be directed when spraying (plus protective cover, low spray). Fifth, the use of fertilizer and biological fertilizer Although trace elements are rarely required during the growth of crops, they play an important role. As long as a little bit of fertilizer is added, crops can acquire more other nutrients at the same time. Corn is generally recommended to spray calcium, zinc, and magnesium fertilizers at the seedling stage. Sixth, other technologies 1. Different harvest periods Select different harvest periods depending on the purpose of planting. The best maturation period was the maturation maize. The green corn silage corn was the best from the late milking stage to the early waxing stage. The sweet and waxy corn were harvested at the top position. 2. Harvesting methods Producing corn can adopt stalk harvesting to allow sugar to continue to the grains. Viruses and bacteria are everywhere. Preventing them in advance is the best way to reduce the risk of infection. Wearing a mask and washing hands frequently are crucial. The new type of coronavirus has the characteristics of contact transmission, and the fact that the virus exists on the doorknob of patients with pneumonia has also shown the necessity of paying attention to hand hygiene and wearing disposable protective gloves.
Whether it is going out to purchase daily necessities or buying through online platforms, it is inevitable to come into contact with "foreign" items, such as supermarket shopping carts, packaging bags, express packaging boxes, etc., and more things need to be touched after resuming work, such as It is inevitable to take public transportation, elevators, etc., these places may have been touched by patients or suspected patients. Wearing disposable protective gloves is an effective means to reduce the risk of infection when there is no condition to wash your hands at any time.
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