How to cultivate Artemisia selengensis in greenhouse
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The roots of Artemisia selengensis are straight roots, and the main and lateral roots are distinctly different. The roots are underdeveloped and are mainly distributed on the soil surface. Stem erect, round, plump, light green, strong branching; base leafhoppers can occur lateral branches, can be harvested multiple times. Leaves green, long, undulate or deeply lobed, leaves thick and fleshy. Chrysanthemum xiongxi hi cold, not high temperature, growth temperature of about 20 °C, slow growth below 12 °C, more than 29 °C poor growth, can withstand short-term low temperature around 0 °C. Seeds can germinate at 10°C and 15-20°C are most suitable. Chrysanthemum cultivars are divided into large leaf species and leaflet species depending on the size of leaves.
1. Artemisia halodendron? Also known as Artemisia halodendron or Artemisia ordosica. The leaves are wide, the cuts are shallow and shallow, the leaves are thick, the shoots are short and thick, and there are fewer fibers, good quality, and high yields. Poor cold resistance, relatively heat resistance, slower growth, longer growth period.
2, Artemisia oleracea? Also known as mosaic wormwood or Artemisia selengensis. The leaves are small, lacking many and deep, and the leaves are thin, but the aromas are strong, the branches are fine, the quality is poor, and the yield is low. More cold-resistant, short growth period (growth 40-50 days).
Because garland chrysanthemum has the characteristics of low temperature resistance, coolness, light tolerance, low light saturation point, and low photosynthetic intensity, it is not only feasible to use garland chrysanthemum in the greenhouse in autumn and winter seasons, but also can be listed during the Spring Festival, greatly improving the economy. benefit. The cultivation points are as follows:
First, the time of my area in the early October to mid-November sowing, listed during the Spring Festival.
Second, the selection of seedlings should be selected for its strong cold resistance, comparative disease resistance, good quality and high yield.
Third, sowing? Sowing when the removal of the greenhouse before the stubble residue, soil preparation, Mushi farmyard fertilizer 3000-4000 kg, turning the ground 15-20 cm deep, semi-high sorghum, help to increase soil temperature, width 1-1.2 Meters are 0.8-1 m wide, 8-10 cm high, 7-8 cm wide, and 1.5 cm in cover soil after sowing. The sowing rate is 2500-3000 g, and the emergence is 6-7 days after sowing.
Fourth, after the emergence of management to strengthen management, the early temperature is relatively high, the late temperature is low, the temperature is controlled at 17-20 degrees, more than 28 degrees to release the wind, because more than 30 degrees for the development of adverse, then, photosynthesis decline or stop, growth is affected Impact, thin leaves, increased fiber, poor quality. The minimum temperature should be controlled at more than 12 degrees. Below this temperature, attention should be paid to preventing cold and increasing cold protection facilities. To avoid freezing or freezing to death. Since it is in the cold season, it is generally not watered, promotes deep rooting, and has high humidity and low temperature, and is prone to damping-off. When 8-10 leaves are grown, the first water is selected to be poured in sunny and warm weather, and the combined fertilizer is chased once for watering, and ammonium sulphate is used for 15-20 kg. During the growth period, it is watered 2-3 times and watered in sunny and warm weather in the morning. The amount of water should not be too large and the humidity should be controlled below 95%. If the humidity is high, sunny days should be selected to release the humidity at noon to prevent the occurrence of diseases.
Artemisia selengensis grows in the greenhouse. Due to weak light, low temperature and high humidity, it is prone to damping-off, leaf blight, and downy mildew.
When Artemisia selengensis grows to a height of twenty centimeters, it can be harvested and eaten at any time. Afterwards, new strains that grow out can be picked up one after another.
