According to the site condition of the orchard, the method of coating can be roughly divided into the following three types:
Park covered film
For intercropping orchards with certain irrigation conditions, such as peanuts in an apple orchard with a spacing of 4 meters, three coats of peanut ridges can be set up between the rows. The ridge width is 90 centimeters, the ridge width is 60 centimeters, and the ridge height is 10 centimeters. The width of the film is about 50 cm on each side. In this way, four mulches with a width of 1.1 meters can be used to cover all fruit trees and crops. For intercropping peanuts, large fruit varieties should be used. In order to promote the growth of saplings, the ditch can be planted with a row of ridges and furrows during drought, and the appropriate amount of nitrogen fertilizer or compound fertilizer should be applied before each irrigation, and attention should be paid to the management of the fruit trees and intercropping trees according to their respective requirements.
Antegrade film
In dense orchard orchards with irrigation conditions, after the early spring fruit trees are planted, they are swiftly made one-meter-wide rakes, then water-proofed by rakes, and immersed for 2 to 3 days after infiltration. The method of coating is to press one side of the mulch film first, and then cut the other side of the corresponding trunk to a width of about 1â„2 width so as to pass through the trunk, then flatten the film surface and cover the cut film with soil. Face and re-do the film two. The top dressing can be along the transverse incision of the membrane and is applied at a distance of 30 cm from the trunk. Water can be applied to the membrane after fertilization. There is no need to remove the membrane during the rainy season, but pay attention to drainage. This method is more conducive to the growth of saplings than the single mulching.
Single film
In mountainous orchards without irrigation conditions, when the fruit trees are planted, a tree plate is made of 50 cm from the trunk, and each water is about 50 kg. The next day after the infiltration, re-level the ground and use the tree trunk as the center to repair the 1m square tree plate, making it slightly higher on all sides and slightly lower in the middle. Then about 1 square meters of plastic film around the trunk, tiled to the tree plate, flattened the film surface flat, surrounded by tight soil pressure, soil pressure around the trunk. Coverage time is as early as possible in early spring. When topdressing, a wooden stick with a diameter of about 3 cm can be used, and the lower part can be cut into a sharp shape. Four deep 5 cm holes are drilled from the surface of the 30 cm film on the trunk. Each hole is filled with about 50 grams of chemical fertilizer, or the fertilizer is dissolved in water. Fill into the hole, and finally cover the hole and the surrounding membrane with soil.
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