Oleander Alias ​​Liu Ye peach, half a year red, for the Apocynaceae, oleander is a large evergreen shrub, potted plants often trimmed into small trees, plant height of 2 meters to 3 meters. Inflorescences crown corolla pink to dark red, flowering from June to October, corolla funnel-shaped, 5-lobed, pleates on petals, with a lighter special aroma.
Oleander is dominated by cutting propagation and combined with plastic trimming in April. Cut a length of about 15 cm thick branches for cuttings, dozens of bundles into a bundle, soaked in shallow water, the depth of water reaches 1/3 of the cuttings. Shallow pots are sealed with plastic bags and exposed to high temperature sunlight. Rooting was taken after two weeks. After the cuttings have survived, a robust bud is selected to develop a new strain and the rest are erased. When the new plant grows to a height of 20 cm, it is replaced with an inner diameter of 20 cm pots. The basin soil fills the base of the new plant, which means that the original cuttings are buried in the soil to form rhizomes, and a large number of fibrous roots occur, prompting the growth of new plants. In the late spring, we will prune and prune, and we will develop a three-nine-nine full-blooded strong plant.
The oleander's old plants often sprout at the base. When it grows to 10 centimeters long, it can be plucked down and put in a fully decomposed culture soil to shade moisture and keep the survival rate high.
Oleander also has a characteristic, as long as there is a drought dehydration or water accumulation, the lower part of the plant leaves soon yellow, off, so watering should be timely and appropriate. After pruning in early spring, pay attention to water to prevent root infection and rot. In a timely manner, the soil is loosened and the flowers are withered and removed in time. Occasionally, locusts and spider mites are endangered and can be eliminated by common pesticides.
The greenhouse a filled with equipment like hydroponic, irrigation, auxiliary lighting ,temperature and humidity control and also may be automatically controlled by a computer to maximize potential growth.
Hydroponics can be used to make the most use of the interior space. The relatively closed environment of a greenhouse has its own unique management requirements, compared with outdoor production. Pests and diseases, and extremes of heat and humidity, have to be controlled, and irrigation is necessary to provide water. Most greenhouses use sprinklers or drip lines. Significant inputs of heat and light may be required, particularly with winter production of warm-weather vegetables.
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