Late Cultivation Techniques of U.S. Supersweet Corn

U.S. gold super sweet corn has the advantages of short plant type, thin and sweet, crisp, full, high yield and early maturity. It is the latest order agriculture introduced by our town this year. The town started planting more than 300 mu in the evening and it can produce more than 1,000 kilograms per mu. In July, it is sown and planted in two batches. The economic benefits are significant and it is worth promoting.
First, choose the land with loose soil, deep fertile soil, convenient drainage and irrigation.
Second, planting seedlings
1. Seedbed preparation: The seedbed is planted from the ground, with a width of 1 to 1.2 meters, a ditch of 0.15 to 0.2 meters, and a slightly flat surface with a slightly turtle-shaped back, which requires 35 to 40 square meters of seedbed per acre.
2. Pseudo-nutrient cup nursery: Use fertile field mud, mix with water to form a cup that can be made into groups, can't be scattered, become cup-shaped and about 4 centimeters high. Arranged neatly on the top of the nursery bed with a small amount of compound fertilizer, then use the index finger to press about 1 cm depth in the middle of the cup, and then put the unsoaked seeds flat in the middle of the hole and cover about 0.1 cm of wet mud. Then apply 2 kilograms of magical pen and 2 grams of frying rice sugar to the cup surface and around it to prevent insects. Finally, arch the bamboo strips and cover them with double-layer shade nets to moisturize and protect against rain.
3. Nursery management:
(1) Uncovered net ventilation. After 2 to 3 days of sowing, the seeds are germinated and exposed. The nets are uncovered throughout the day and covered at night and rain.
(2) Drought prevention and flood prevention. When the soil is white or the amount of water is obviously insufficient, clean water is sprayed one time in the morning and in the evening to keep the soil moist and keep the sulcus free from torrential rain.
(3) timely transfer seedlings. When the seedlings grow to 2 leaves and 1 heart (ie 5 to 7 days after sowing), they can be transplanted.
three,. Field cultivation management
1. Apply basal fertilizer: per acre to comprehend the house manure 1000 ~ 1500 kg mixed 25 ~ 30 kg of superphosphate, soil preparation when the ditch applied or transplanting points.
2. Properly dense planting and timely watering: Each hole is double-lined and a hole is planted in each hole. The plant spacing is 0.3-0.35 meters, the row spacing is 0.4-0.5 meters, and 3000 acres are planted. After transplanting, the root water was set in time, and 80% of the pesticide was added to the water to kill the early pests. Drought irrigation water.
3. Scientific fertilization:
(1) 2 to 3 days after planting Shi Zhuang Miao Fei, per acre with urea 5 kilograms of compost diluted urine water 10 solution leach, every 5 to 7 days and then Shi 1;
(2) Applying fertilizer after 12 days of planting, apply 15 kg of imported compound fertilizer to the plant next to each acre;
(3) In the period of 5 to 6 leaves, mu with 10 kg of imported compound fertilizer + 10 kg of phosphorus powder + 2.5 kg each of urea and potassium chloride will be reused;
(4) 8 to 9 leaves of plants to the big bell-mouth period, combined with soil re-applied attacking panicle fertilizer, Mushi urea 7.5 kg + compound fertilizer 10 kg + 5.0 kg of potassium chloride, in the two rows of corn to open shallow ditch applied , then soil 1 to 2 nodes;
(5) Plant 12 to 14 leaves, Mushi compound fertilizer 15 kg + potassium chloride 10 kg + 5 kg of phosphorus powder in the middle.
4. Spray CCC: When 8 to 9 leaves are planted, Mushi CCC is packed to make the plants dwarf and robust.
5. In addition to 蘖定蘖: The United States gold super sweet corn has very strong tillering and delivery power, and it immediately removes tillers and lice. After the tasselling, the florets were selected to be opened when the florets were opened, and only the topmost pod was left.
4. Diseases and insect pests are mainly controlled by insect pests such as aphids, corn borers, sheath blight, and leaf spot diseases. Its prevention method:
1. Corn borer and aphids: Mu Jinyun (rice and corn type) wettable powder 1 package flush spray. In the big bell mouth, Mu Jinyun 2 packs 10 kg of fine river sand and spreads it into the bell mouth.
2. Sheath blight: first remove the old yellow leaves and the diseased leaves of the base to reduce the pathogens, and then use the Jinggangmycin powder 8 to 10 packets to 100 kg of water to spray the base 2 to 3 times.
3. Size and leaf spot: In the period from the big bell mouth to the pollination and irrigating period, it can be sprayed with 500 times solution or 500 times 1000 times solution spot.
V. Timely harvesting male pollination flower 20 to 28 days after pollination, the outer silk is darkened, and the corn grain of the temporal lobe can be harvested when it is full yellow.
(514231 Liuhe Free Agricultural Station, Xihe Town, Dapu County)

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