Hole storage fertilizer film mulching technology

Acupoint storage of fertilizer and water is a simple and easy-to-use, low-yield, water-saving and drought-resistant technology with the characteristics of fertilizer and water saving. The application effect is particularly remarkable in hilly areas where the soil layer is thin and waterless. The specific operation techniques are as follows:

The crop straw or weeds are bundled into grass pieces with a diameter of 15 to 25 cm and a length of 30 to 35 cm, which are soaked in water or 5% to 10% of urine. At the edge of the canopy projection 50 to 70 cm inward, a storage hole with a diameter slightly larger than the grass handle is drilled (the pit is rounded around the root). According to the size of the crown, the number of storage points is determined. The crown diameter is 3.5 to 4 meters, and 4 holes are dug; the crown diameter is 6 meters, and 6 to 8 holes are dug. Place the grass in the center of the hole, and use the soil with mixed organic fertilizer to step on it (5 kg of soil per pot, add 150 g of superphosphate, 50-100 g of urea or compound fertilizer), and water it in moderation. Then tidy up the tree tray so that the nutrient points are 1 to 2 cm below the ground and form a plate. Each hole is watered for 3 to 5 kg to cover the film. Cut the old agricultural film and flatten it, cover it on the tree plate, and make sure that the nutrient hole is covered under the film, and the soil is compacted around and in the middle. Each hole covers 1.5~2 square meters of mulch film. The edge of the film is pressed with soil pressure. The center is drilling a small hole in the upper end of the grass, and it is blocked by stones or soil, so that it can be used for watering or receiving rainwater in the future. Generally, after flowering (mid-May), new shoots stop growing (mid-June) and three periods after fruit picking, 50-100 grams of urea or compound fertilizer is applied to each hole, and the fertilizer is placed on the top of the grass. Watering about 3.5 kg. Enter the rainy season, remove the mulch and store the rainwater in the cave. Generally, the storage hole can be maintained for 2 to 3 years, and the grass should be changed once a year. It is found that the film is damaged and replaced in time. When the storage hole is set again, the position is changed and the whole garden is gradually improved.

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