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1. Isolation and planting to prevent string powder: In order to ensure the grain color and edible quality of purple corn, it must be isolated from other types of corn when it is planted in selected areas, and the isolation distance is about 300 meters. If there are natural barriers such as trees and hills, the isolation distance can be appropriately shortened. If space isolation distance is not enough, time can be used to isolate, that is, through the wrong period of sowing, so that the loosening of the two types of corn staggered period, sowing should be at least a difference of more than 20 days. At the same time, fertility should be selected for cultivation in the fields with good irrigation and drainage.
2. Applying basal fertilizer, fine soil preparation: Basal fertilizer is dominated by organic fertilizers. Mushi quality farmyard fertilizer is 1000-1500 kg and phosphate fertilizer is 30-40 kg. Deeply plowing soil preparation, smashing and leveling, starting from a width of 1.3 meters, planting a double row of planting surfaces. When the paddy field is planted, open a field side ditch and a middle ditch for irrigation and drainage.
3. Timely early sowing, reasonable dense planting: spring sowing in March sowing, autumn sowing in August before and after sowing. The spacing is about 50 centimeters, and the spacing is about 32 centimeters. About 3,300 plants are planted per acre. Carefully sowing, sowing all seedlings, seedlings, seedlings. When planting, use 10 to 15 kg of compound fertilizer per acre in the sowing ditch to apply it as a uniform fertilizer, and apply pesticides to prevent and control underground pests. After the sowing of the soil, it can be sprayed with 150-200 grams of Atrazine and 80 kg of water to control the weeds.
4. Scientific fertilization, strengthen management: In the 3-4 leaf stage, the seedlings should be transplanted and the seedlings should be transplanted. The seedlings should be transplanted with soil, and watered immediately after the planting. When the leaves are 5 leaves, 1 seedling is planted per hole. Strengthen the seedling management, timely application of Miao Fei, and promote strong seedlings, keep balance, Mushi 3-4 kg of urea against rot of 1500 kg of manure. Before the jointing stage (7-8 leaf stage), 7-10 kilograms of urea and 10-15 kilograms of potassium chloride are applied. The large bell-mouth Mushi urea 15-20 kg, compound fertilizer 6-10 kg attack big spike. In combination with topdressing, cultivator management will be carried out. Soil will be cultivated in the soil during seedling stage, jointing stage until the big bell stage. Rational irrigation and drainage, keep the soil moist, pay attention to prevent flooding at the seedling stage, tasselling silking period to prevent drought, especially flowering pollination period can not be affected by drought.
5. Prompt control of pests and diseases: We must focus on the prevention and control of underground pests during the seedling stage and corn borers in the middle and later stages. We must pay attention to the prevention and treatment of diseases such as leaf spot and sheath blight in rainy and humid weather. (1) Control of underground pests. When sowing, apply 3% Milur granules 5-6 kg mixed fertilizer per acre, or use 1 kg 0.3% fipronil or 5% anti-insect granules to mix evenly in the sowing ditch. Inside. (2) Control corn borer. Can be used in mu with 3% Milor 1-1.5 kg, or 20% Triazophos EC 75-100 ml, or 50% Bataan WP 100-150 g 8-10 kg fine soil made into Venom Heart leaf; or 1000-2000 times pyrethroid insecticide irrigate or spray. (3) Control of sheath blight. Seed dressing with 0.02% seed soaking or 2% Lingfu Mixture has the best control effect. (4) Control of leaf spot. At the beginning of the onset, spray with 10% Shi Gao or 20% tricyclazole 1000 times solution, or 50% Dysonammon 800 times solution, spray once every 7-10 days, and spray 2-3 times.
6. Timely harvest: Appropriate harvesting period should be 23 days after pollination (milk ripening period). (514533 Agricultural Technology Station, Daping Town, Xingning City; 514562 Xingning Silkworm Farm)
Fresh purple corn cultivation techniques
At present, the market for fresh purple corn has been on the rise, and the fresh purple corn that is sold on the market has almost always been waxy corn. Waxy corn is also known as sticky corn. Its fresh fruit ear is particularly suitable for consumption. After cooking, the grain is soft and fragrant, the skin is thin and slagless, and the content is high. It has high nutritional value and is easy to digest and absorb. Purple and black corn is rich in melanin and trace elements such as calcium, iron, zinc, selenium, and vitamin E and other substances with health care functions. It is an ideal pure natural and pollution-free nutritional health product. I stationed from the Crop Research Institute of the Guangdong Academy of Agricultural Sciences to introduce two new species of purple glutinous maize, “Yuezijing No. 3†and “Yuetianxuanjingâ€, which are high-quality, high-yield, disease-resistant, and highly valued commodities. Has great development potential and market prospects. At present, purple and black corn have fewer resources for market listing, and they have proven to be a source of beauty. They have a large profit for industrial development and a high profit, which is a good project for farmers to grow rich.