First, the variety selection

Choose the glutinous maize hybrid Susong No. 1. The variety has the characteristics of thin skin, sweet, soft and good taste. It is planted 2 times a year, and the whole growth period of spring carp is about 105 days.

Second, preparation before the broadcast

Before sowing the fields, it is necessary to turn over the soil and freeze the sun. When combined with winter ploughing, 1,500 to 2,000 kilograms of decomposed organic fertilizer should be applied per 667 square meters (1 mu), and 1 kg of grass glyphosate should be weeded about 15 days before sowing. Use a trencher to open a groove according to a ridge width of 1.5 m (including ditch).

Nutrient soil configuration in nursery fields: nutritious soil should be prepared 10 days before sowing. Generally, 250 kg of dry pig manure per 667 square meters, 1500 kg of vegetable garden soil, plus 15 kg of imported potassium sulfate compound fertilizer, mix and mix well. The nutrient humidity can be dispersed in the hands and can be dispersed from a height of 1 meter. After being prepared, it can be sealed with a film and stacked for at least 10 days before it can be used for plastic tray seedlings. The seeds are sun-dried for 2 to 3 days before sowing, which can effectively increase the germination rate and early germination time.

Third, nursery

For every 667 square meters of field, the seedbed area is 2.5 meters and 21 meters. After ditching and drying the ridge, 600 kg of pig manure is poured, the kneading dough is finished, the water is poured, and finally the flat is 145 holes per 667 square meters. Zhang, 2 sheets and 1 pair, the horizontal front row is gently pressed with the wooden board, so that the bottom of the tray and the bed soil are compacted, and one seed is mixed with each seed (the agent is 1:20 times insecticidal double infusion), with nutrition The soil is filled, leveled with sputum, then watered with a watering can, soaked until the surface of the sputum plate covers the mulch, and then a thin layer of straw is placed on the mulch (not subject to the film), surrounded by clay, corn buds After the surface is exposed, the mulch film is removed in time.

Fourth, sowing specifications and field management

Each ridge has a width of 1.5 meters (including ditch), wide and narrow rows, plant spacing of 0.1 meters, large row spacing of 0.9 meters, small row spacing of 0.6 meters, planting 4,000 to 5,000 plants per 667 square meters. Since Susie corn and ordinary corn stalks will lose sweetness and astringency, they can be isolated and planted in stages. In the 2 leaf stage, spray a small amount of water with a watering can to moisten the soil before transplanting. The seedlings should be soiled, the soil should be covered tightly, and the root water should be poured immediately. In case of rain, you can postpone the transplant to the 4th leaf stage. 20 kg of urea per 667 square meters, applied between the seedlings, should not be applied into the heart of the seedlings to prevent burning. When the application time of panicle fertilizer is 13-15 leaves, 25 kg of urea and 20 kg of zinc sulfate are applied per 667 square meters. Potassium chloride is strictly prohibited. Before and after the tassel is extracted, the water requirement is the most sensitive and sensitive period. It should maintain about 70% of the field water holding capacity, and try to meet the water requirement of corn growth. If the leaves of the corn are found to be weak after heading, the leaves above the ear are yellow-green, and the lower leaves are early and dry. The panicle fertilizer should be added immediately, and 20 kg of urea per 667 square meters.

V. Pest Control

The pests and diseases are caused by corn aphids, ground tigers, sticky insects, mites, and sheath blight. In accordance with the principle of “prevention first, comprehensive prevention and control”, we adhere to the principles of “agricultural prevention, biological control, physical control” and strictly follow the pollution-free production standards. To prevent and control. The ground tiger is mainly harmed at the seedling stage. It can be blended with 90% crystal trichlorfon original powder 100g + boiling water 400g, and then mixed with the sauteed vegetable cake, and applied to the seedling line. Corn aphids, sticky insects, mites, sheath blight, 667 square meters with insecticidal double 250 grams plus 70 mg of oxaloin, 150 grams of trichlorfon, 150 grams of jinggangmycin, spray 40 kg with water spray , spray again 1 day later. In the corn field, the diseased plants must be removed in time and taken out of the field, away from the corn growing area. Pesticides should not be used for 7 days before harvesting.

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