Prepare before broadcast
According to the characteristics of spring maize afraid of the early and fearful, in the rainy season, we must pay attention to doing a good job of drought prevention and flood control. Because of the long growing period of corn, it is advisable to choose fertile loam or clay cultivation with deep soil and strong water retention. In the spring, there are more rainy seasons in our district, and it is often prone to guilt. Therefore, we must select a well-drained plot for proper sowing. The land is flat and drainage is convenient, which is conducive to the growth of corn.
Seeding and transplanting
Meiyu (plus sweet glutinous) No. 8 can be cultivated in different seasons. The vegetable growers should use the small arch sheds to promote early cultivation techniques in order to improve the benefits. In mid-February, the fields were nursed, then covered with plastic film and small arch sheds, and were planted for 20 days. In early March, small arch sheds were used to cover field cultivation, which was 1 month ahead of conventional open field live broadcasting. About 4300 transplants per acre or so. Due to the short growing period in Daejeon, the number of plants should be appropriately increased in order to ensure production. In late May, Taureo is mature and matures in mid-to-late June. The total fertility period is about 115 days, and the field growth period is about 95 days. It must be separated from other corn varieties by more than 200 meters or a 15 day difference in flowering time to prevent pollination by miscellaneous strains affecting quality.
Field management
Air ventilation
Abnormal weather often occurs in spring, and hot and cold is not conducive to the growth of seedlings. The temperature in the shed is appropriate to be around 25°C. It is higher than 30°C to open the small shed film. If the temperature is lower than 15°C, insulation work should be done.
2. Fertilizer management
Apply basal fertilizer and reapply attacking panicle fertilizer. Before transplanting corn, 100 kg of organic compound fertilizer and 45% of imported Norwegian compound fertilizer and 1,000 kg of soil miscellaneous fertilizer are applied per acre Shi Xiaoshan as base fertilizer; 45% of Yangfeng compound fertilizer is applied per acre in early April. In mid-May, 46% of urea was applied to 46 kg of urea per acre in the middle of May. Finally, in the first half of June, approxi- mately 15 kg of 46% urea in Zhenhai was applied as a top dressing per acre. In terms of water slurry management, during the cold period, the rainwater is generally not watered, and drainage work is done to reduce the water table. After mid-April and mid-April, the plant population was large, the temperature rose significantly, and the water requirement increased significantly. In case of continuous sunny weather, the soil in the field was relatively dry, and watering or furrow irrigation should be performed in time to keep the soil moist. There must be sufficient moisture within 15 days before and after the pumping of flowers, which is the key to winning a bumper harvest.
Pest Control
Before the transplanting, we can add 60 kg of water and 35 kg of water per acre to spray the closed weeds. There are fewer diseases in the whole growth period, and insect pests mainly include roundworms and corn borers. Locust: 10% imidacloprid per acre can be used to control 50 grams of water plus 40 kg of spray; corn quail: 50 ml per acre can be used with 40 kg of water to prevent spraying.
Timely harvest
Meiyu No. 8 is based on fresh fruit as a fruit, timely harvest and market is an important part of high yield and high efficiency. The optimum harvest period is about 23 days after pollination, premature harvesting will be weakened, and the sweetness will be reduced if harvested too late.
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