Corn mulching technology
1. Variety selection: Select medium-early-maturing varieties with high yield, disease resistance and the like on the No. 4 conference and Great Wall 799.
2, film selection: should be selected horizontal and vertical tensile strength, good transparency, not aging, width 90 cm, thickness 0.005 mm low pressure, high density ultra-book.
3. Plot selection: Select the plot with flat terrain, good fertility, deep soil layer, loose soil, and certain water conservation and fertilizer retention capabilities.
4. Timely sowing: Most of the mountainous areas in my county belong to high-cold areas. Therefore, it should be timely as early as possible, generally sowing in late April to early May.
5, planting specifications and density: corn planted under large, 80 cm big lines, small lines 40 cm, 50 cm from the pond, leaving 2 per pond, planting density of 4400 strains.
6. Soil preparation and fertilization: Two ploughs and two hoeings are to be carried out. Maize's film production increase rate is high, we must increase fertilization material, generally 2000 kg of Mushi farmyard fertilizer, corn special compound fertilizer 40 kg, 50 kg of calcium, urea 60 kg. Fertilization technology: farmyard fertilizer as base fertilizer, compound fertilizer and calcium phosphate as fertilizer, urea as topdressing.
7, sowing and filming: According to a compound belt 120 cm ridge furrow, ditch should be straight, the surface should be flat, playing sowing two rows of corn, p2-3 seeds per pond, sowing 4-5 cm deep, Sowing watering back cover film.
8, to strengthen the field management: to prevent the wind from the film and weeds broken film and found that the broken film timely covering the soil, the film within the grass to pressure soil. When seedlings 2-3 leaves, one-time artificial membrane rupture seedlings to prevent burning seedlings. After the rupture of the membrane, the membrane hole is closed in time to reduce the evaporation of water and increase the temperature of the ground. In the absence of seedlings, combined with Dingmiao, transplanting by sitting water, or transplanting seedlings in rainy days. After the seedlings were established, the bed ditch was treated with early tillage and weeding.
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