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First, cutting the stems as a combination of the golden core of the Brazilian cypress stem section is usually transported from air-conditioned containers from Sri Lanka and other places, the tree stems more than 6 to 10 cm thick, individual more than 10 cm, and more than 1.5 meters long One, with 5 bundles, with fresh preservatives wrapped around the head, wax seals at the tail for preservation, skin color to keep light yellow, bright and shiny, so the first step after shipment is cut, cut off according to the length of each combination, Because of its total length of about 1.5 meters, consider the ability to match the combination to minimize the principle of sawing. The head of the incision should be disinfected with 75% chlorothalonil wettable powder 100 times. The tail of the mouth should be paraffin moon mouth, so as to reduce the evaporation. After the incision is slightly dried, the incision can be performed.
Second, the false-implanted substrate is usually cleaned with coarse sand, and the river sand should be disinfected with chlorothalonil equivalent to incision disinfection. When prosthesis is to be carried out according to different lengths, and the depth of the inserted substrate varies from 10 to 35 centimeters in different lengths. Stem segments above 1 m in diameter should be fixed in batches with bamboo rafts in order to prevent unsteady insertion. Or tilt to affect the germination angle, the distance between each stem segment is preferably about 10 cm, too dense will affect the future germination, sparsely waste of space. During the pre-planting period, the river sand should be kept in a semi-dry state, preferably in a plastic film shelter or greenhouse where rainwater is prevented, and a temperature of 20 to 25°C is preferred. In order to prevent insects such as Tianniu, the use of insecticides such as dichlorvos for spraying should be used for 1 to 2 times. After about 4 to 5 weeks, shoots can be seen growing.
Third, the upper pot until the bud grows to 5 to 10 centimeters, it can be on the basin, too long, the buds are easy to touch off, and the root system is too advanced unfavorable on the basin. When the basin is in the pre-designed combination, the longest one is the first, the soil is fixed slightly, the middle is the least, the last is the shortest, and the soil is completely fixed. Shoot as far as possible to the outside, which is conducive to viewing. When planting, the columns should be separated from each other by a certain distance. The gap is filled with a plastic bag filled with wooden rakes or fine sand, and then the three columns are firmly tied with plastic ropes so that they can grow normally and are not easy to swing and lean, which is conducive to transportation.
Fourth, the matrix requires a certain amount of water and fertilizer, ventilation loose soil. It is generally preferable to use a 6:4 mixture of coconut cocoons (coconut hulls of coconuts) and river sand, or to mix 1:1 of peat soil and river sand.
Fifth, pots and pans As the columnar golden hearts of the Brazilian iron tree are larger potted plants, it is usually more appropriate to choose tall white cylindrical plastic pots.
Sixth, management
1. The light with ideal light is the place with 50% shading, and the leaf color is greenish and the glossiness is low in the shaded environment; if the light is too strong, it is easily burned by the scorching sun.
2. Moisture and moisture should be sufficient, normal weather should be enough to spray water once a day, space or ground watering 2 to 3 times, air humidity requirements in more than 80%, high temperature and humidity will help its rapid growth.
3. The temperature is usually 22 to 25 °C ideal, winter temperatures exceed 10 °C.
4. Fertilizer Because it is a foliage plant, the proportion of N should be slightly biased, usually N, P, K full-effect compound fertilizer is applied once a month, while top-dressing potassium dihydrogen phosphate ten urea 0.2 to 0.3% aqueous solution 2 Up to 3 times, the result is very good.
5. Diseases and Insect Pest Control Beetle Infestation and erosion under the cortex can be perfused and sprayed with 1000-fold solution of 80% dichlorvos. For some anthrax and other diseases occasionally occurring on the leaves, 75% wettable chlorothalonil is usually used. 50% thiophanate spray 800 times, the effect is very good.
Columnar Golden Heart Brassica oleifera cultivation techniques
Columnar Golden Heart Brazilian golden tree is a combination of stem segments of the Golden Tree (Dracaena fragrans "Victorja"). The golden heart Brazilian thorn tree, also known as Brazil Millennium Wood, Liliaceae, Dracaena, is a horticultural variant of the fragrant millennium wood. The evergreen trees are long, lanceolate and radial. The leaves have long golden bands in the middle, which are both color and shade-tolerant.