The cedar is moist, the soil is deep, the drainage is good, and the fertile soil is loose. It grows well in sandy soil with a pH of 6.5.
Pay attention when planting cedar. Regardless of the seedlings and seedlings, avoid blisters and blisters will die all day. When transporting, the vehicle should be covered with a awning to avoid the loss of water and needle drop, which affects the survival rate. In addition, cedar is usually grown in March.
Specific planting management techniques are as follows;
1. Preparing the bed for soil preparation: Before the land preparation, first apply 50 kg of ferrous sulfate, then turn it 20 cm deep with the sputum, then pour it into a bed, 畦 width 1.5 m, length 20 to 50 m, snoring and doing sputum, after doing it According to the line spacing of 1.5 m x 1.5 m, the holes were drilled, and each line was planted with 300 plants per acre.
2, dig a hole planting seedlings: cedar plant spacing is 1.5x1.5 meters, each line, point in the center of the raft, the hole is 30 × 30 cm, round. Leave 4 to 5 cm of loose soil to plant seedlings. When planting seedlings, if it is a soil ball wrapped in straw rope, it can not be untied; if it is wrapped in nylon rope and plastic, it must be solved to avoid the consequences of planting dead seedlings. After planting the seedlings, you can pour water by licking the noodles. If the seedling leaves are yellow, it is iron deficiency, and ferrous sulfate is required.
3. Cultivation and management: After cedar is planted, apply water twice a week. After that, you can loosen the soil and protect the sputum. Then you can re-cast it in early May. After the weather is not dry or poured, you can apply fertilizer once in June. Primary ferrous sulfate. Dig the pit at the side of the plant. Cedar is on the loose soil and can be carried out once in 20 days. It requires careful and meticulous, generally 4 to 5 cm deep. It is required to be evenly distributed. The soil is loose and the grass is clean and clean.
4, seedling packaging: When starting the seedlings, first use the straw rope to tie the branches of the tree crown, so as to avoid the needles and thorns obstructing the operation, and then shovel the soil at the base of the seedlings to ensure that the soil balls are excavated outside 30 to 35 cm. When the time is facing out, be careful and flexible. After digging and repairing the soil ball, after the original shape is dug, the hoe is dug out to the center of the root until it is naturally dug, and then the soil ball is carefully repaired, and the grass rope can be used for packaging. One end is tied to the base of the cedar, and the other part is equidistantly wound with the soil ball. Generally, the soil ball can be made into 9 to 10 lanes, and finally the rope is bundled with 3 to 5 horizontal lines to load the vehicle.
5, cedar shaping and head change: cedar in the management process, need to pay attention to plastic surgery and head change work, cedar in the growth process, some heavy branches, the head will be damaged or in a weak position, must be pulled with strong side skills, tied In the future, it will become a central advantage, and this process is a change of head. Plastic surgery:
1. Too loose branches
2. Retract long branches
3. Supplementing the missing branch
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A Gas Generator usually refers to a device, often
similar to a solid rocket or a liquid rocket that burns to produce large
volumes of relatively cool gas, instead of maximizing the temperature
and specific impulse. The low temperature allows the gas to be put to
use more easily in many applications, particularly to drive turbines. Gas Generators are used to power turbo pumps in rocket motors to deploy airbags, and
in other cases where large volumes of gas are needed, and storing it as a
pressurized gas is undesirable or impractical.