At present, the market for fresh purple corn is on the rise, and the fresh purple corn sold in the market is almost all corn. Waxy corn is also known as sticky corn. Its fresh ear is especially suitable for eating. After cooking, the grain is soft, fragrant, thin and slag-free, and has many contents. It has high nutritional value and is easy to digest and absorb. Purple black corn is rich in melanin and trace elements such as calcium, iron, zinc, selenium and vitamin E. It is an ideal natural and pollution-free nutritious health product. I have introduced two new varieties of purple glutinous maize from Guangdong Academy of Agricultural Sciences and Crop Research Institute of Guangdong Academy of Agricultural Sciences, which have high quality, high yield and disease resistance, and the value of commodities is extremely high. Has great development potential and market prospects. At present, purple black corn has few resources for listing, a good source of seed, a large profit for industrial development, and high efficiency. It is a good project for farmers to grow rich.
1. Isolation and planting to prevent skein: In order to ensure the grain color and edible quality of purple corn, it must be isolated from other types of corn when planting the land, and the isolation distance is about 300 meters. If there are natural barriers such as trees and hills, the separation distance can be appropriately shortened. If the space separation distance is not enough, time isolation can be used, that is, the seed loosening period of the two types of corn is staggered by the wrong seeding, and the sowing period should be at least 20 days or more. At the same time, it is necessary to choose a field with good fertility in the middle and irrigation.
2. Apply sufficient base fertilizer and fine soil preparation: the base fertilizer is mainly organic fertilizer, and the high-quality farmyard manure is 1000-1500 kg and the phosphate fertilizer is 30-40 kg. Deeply ploughing the ground, smashing and leveling, squatting at a width of 1.3 meters, planting double-row rows, and opening the ring-side ditch and the middle ditch when planting the paddy fields for irrigation and drainage.
3. Timely early sowing, reasonable close planting: Spring sowing is planted in March, and autumn sowing is planted around August. The line spacing is about 50 cm, the plant spacing is about 32 cm, and about 3,300 plants per acre are planted. Carefully sowed, to achieve a full seedling, seedlings, and Miao Zhuang. At the time of sowing, 10-15 kg of ternary compound fertilizer per acre is uniformly applied as seed fertilizer in the planting ditch, and at the same time, the underground pests are controlled by application. After sowing the soil, you can use the Atrazine 150-200 g to water 80 kg to spray the whole field to prevent weeds.
4. Scientific fertilization, strengthen management: in the 3-4 leaf stage, the seedlings and transplanted seedlings are filled, the seedlings must be soiled, watered after planting, and 1 seedling is fixed at 5 leaves. Strengthen seedling management, timely apply seedling fertilizer, promote strong seedlings, maintain balance, apply 3-4 kg of urea to 1500 kg of mature manure water. Before the jointing stage (7-8 leaf stage), 7-10 kg of urea and 10-15 kg of strong stalks of potassium chloride were applied. In the big bell mouth period, 15-20 kg of urea and 6-10 kg of compound fertilizer are used to attack the big ear. In combination with topdressing, the management of the cultivating, the loosening of the seedlings, and the cultivation of the soil before the jointing period to the big bell mouth. Reasonable irrigation and drainage, keep the soil moist, pay attention to the prevention of waterlogging during the seedling stage, and prevent drought during the silking period, especially during the flowering and pollination period.
5. Timely prevention and control of pests and diseases: focus on the prevention and control of underground pests in the seedling stage and corn borer in the middle and late stages, and pay attention to the prevention and control of leaf spot and sheath blight in rainy and humid weather. (1) Prevention and control of underground pests. At the time of sowing, apply 5-6 kg of mixed seed fertilizer per acre with 3% Mole granules, or use 1 kg of 0.3% Regent or 5% anti-insect granules to mix the fine soil evenly in the seeding ditch. Inside. (2) Control corn borer. Can be used to make toxic soil by using 3% milrol 1-1.5 kg, or 20% triazophos emulsifiable concentrate 75-100 ml, or 50% Bataan wettable powder 100-150 g mixed with 8-10 kg of fine soil. Heart leaf; or with a pyrethroid insecticide 1000-2000 times liquid heart or spray. (3) Prevention and treatment of sheath blight. It is best to use 0.02% soaking seeds or 2% Lingfu mixture for seed dressing. (4) Control leaf spot disease. At the beginning of the disease, spray with 10% Shigao or 20% tricyclazole 1000 times solution or 50% Daisen ammonium 800 times solution, spray once every 7-10 days, even spray 2-3 times.
6. Timely harvest: 23 days after pollination (milk ripening period) is the appropriate harvesting period, and should be harvested in time.
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