Battening, also known as pressing, is a commonly used tree asexual propagation technique. It is a method of propagating a plant from the parent's buried soil. It can be divided into several types, such as ordinary layering, soil layering, corrugated and high-beading. It also has the same effect as the rattan and stem cuttings and provincial grafting procedures. Ordinary layering. Also known as single branching strips, that is to take the branches near the ground, as a bead material, dug a small pit 10-15 cm deep in the appropriate place near the mother plant, press the middle section into the pit so that the tip stands upright outside the earth pit. In order for the bead to take root and grow quickly, it should be cut in the lower part bent in the pit, or peeled off in a round shape, compacted with soil, then watered and maintained at appropriate humidity. The top of the shoots is exposed on the ground and fixed with bamboo sticks. After the roots are pressed, the layers will be cut and transplanted in the winter to cultivate seedlings. This method is applicable to the reproduction of flowers and trees such as Podocarpus, Euphorbia, Spring, Forsythia, Fig, Grape, and Citrus. Pile of soil layers. Also called earth soil layering, mostly used in clustered flower and plants, such as Spiraea, Admiralty, spring, pomegranate, plum, cherry and other branches are shorter, branches are hard, difficult to bend the fruit and other wood. In the season of winter or early spring, the old mother plant can be cut off near the ground to promote the sprouting of the lateral branch and make the ground more productive. When the new shoot grows to about 20 centimeters, the base of the new shoot is scratched or peeled off. The skin is then piled up with loose and moist soil, and the branches will take root in the soil. In the winter, it was isolated from the mother plant. For example, sweet-scented osmanthus usually sprouts on the ground in October before sprouting. The soil is used for rooting and the roots are transplanted from the mother plant the next year for transplantation. The flowering can be achieved after 3 years, and the flowering branch is low, the canopy is spherical, and the branches and leaves are dense. Large knots. Corrugated layering. It is commonly used for the propagation of long, softer flowers, such as honeysuckle, grapes, and kiwi. In early spring, in the appropriate place near the mother plant, dig a few wave pits in the direction of long branches, bend the selected shoots to the ground, cut several branches, cut the cuts into the waveform pits, and cut them after rooting. Serve as a new reproductive individual, with a high survival rate and a large reproductive coefficient. High air pressure strips. Also known as air pressure strips, this method is often used for plants that stand upright, hard and difficult to bend, and less prone to root defects. That is, before the germination in early spring or during the growth period in summer and autumn. Select mature and robust branches of the year, and injure or strip a small circle of skin at the appropriate position on the stem, sew with a plastic film, and tie it with a rope. Can also be used in a tile or bamboo tube that is divided into two, filled with fertile, moist and moist soil, buckled at the base of the branches and tied with a nylon belt, promote its rooting, wait until the new root is full and cut it, the film or bamboo tube, tile When the tube is released, new shoots with high shoots can be obtained and transplanted into new individuals. For example, if this method is used to grow osmanthus in the air from September to October, according to the above requirements, the soil in the bag or sleeve is kept moist, and new roots will be produced in more than one month. In the spring of the next year, it can be removed and transplanted to the ground to become a robust osmanthus tree that can bloom in 3 years. (China Green Times Cao Dihuan)
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