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Artemisia annua, also known as artemisia annua, basil, its sweet, spicy, rich practices, loved by many people. The reason why Artemisia annua is called "Emperor's Dish" is precisely because it has many edible values such as calming the nerves and strengthening the brain, clearing the lungs and dissolving phlegm, beautifying the skin, etc., that it will become a court dish in ancient China. Because Artemisia annua has so many benefits, the natural market prospects are also very broad. At present, it is the period suitable for planting Artemisia annua, and many farmers will choose to plant Artemisia annua, but how to plant Artemisia annua and how to make Artemisia annua high yield, do you know? Let's take a look at it with me.
If you want to plant artemisia annua, you must first understand the varieties of Artemisia annua, Artemisia annua is mainly divided into artemisia macrophylla and artemisia spp., artemisia macrophylla is mainly manifested as leaf hypertrophy, shorter stem, dense and coarse, more heat-tolerant, higher yield, but poor cold tolerance, slow growth, slightly late maturity, more suitable for cultivation in the southern region; and the leaves of Artemisia microphylla are relatively narrow, the leaf flesh is thinner, the stem branches are thinner, the fragrance is strong, the growth rate is fast, the cold resistance is strong, but the heat tolerance is poor, so it is more suitable for cultivation in the northern region.
Before we plant Artemisia annua, the first thing we have to consider is the sowing time. Artemisia annua can be three kinds a year, and spring, autumn and winter are suitable for sowing. Spring is mainly concentrated in February-April sowing, autumn is mainly concentrated in August-September sowing, and winter we generally choose October or November sowing. The cultivation of Artemisia annua is also very particular about temperature, light, soil, and moisture. For example, for Artemisia macrophylla with poor hardiness, we should choose a milder temperature environment for sowing, but not too high temperature, because if it is higher than 30 degrees, the growth rate of Artemisia annua will become very slow. Artemisia annua does not have high light requirements, and even weak light can grow normally. For soil and water, Artemisia annua is suitable for those loose and fertile soils, which can make it grow better, while keeping the soil moist during production, but also not too much water, otherwise it will affect its growth and development.
For the sowing of Artemisia annua, some details must be kept in mind, only by doing a good job in all aspects, Artemisia annua will be highly productive, and there will be a good harvest in the next year, such as seed treatment before sowing, 3-5 days before sowing, to soak the seeds in 30 degrees of warm water for 24 hours, washed, and then germinated in a 15-20 degree environment. Remember to wash it with warm water every day, and wait for 3-5 days to sprout before sowing. The method of sowing seeds is also exquisite. Mainly the use of strip broadcasting. Ditch the furrow by 15 cm, the depth of the ditch is about 1 cm, sprinkle seeds into the ditch and water through the bottom. Note that the sowing should be even, and then cover the soil with 0.8 cm. After sowing, we should pay attention to management, artemisia annua to the emergence of seedlings, should maintain a high temperature for 5 days, that is, about 25 degrees during the day, about 10 degrees at night, to facilitate the emergence of seedlings, when the seedlings, about 15 degrees during the day, about 8 degrees at night. After the seedlings have grown, they are also manually removed from the weeds in the garden. It is necessary to remember that the growth period of Artemisia annua can not be short of water, to keep the land moist, when sowing, the distance of the seedlings is 4 cm is better, when the strip is sown, it is necessary to have a thick seedling.
In order to make Artemisia annua high yield, in addition to choosing a good variety, choosing the right environment, and correct cultivation technology, we must also keep in mind the prevention and control methods of some common diseases and insect pests. First, common diseases of Artemisia annua are anthrax and leaf spot disease. In the case of anthrax, this is a disease that is extremely harmful to Artemisia annua, and the disease is more serious in protected areas or rainy areas, mainly affecting leaves and stems. Small yellowish-white to yellowish-brown spots appear on the leaves at the beginning of the disease, which then expand into irregular or nearly round brown spots, with slightly raised margins and a diameter of 2 to 4 mm; The stem is longitudinally lobed, slightly concave, oval or elongated brown spots, and when the humidity is high, the diseased part will overflow with reddish-brown substance. So how to prevent it? Can be sprayed at the beginning of the disease: with 50% fungicide wettable powder 600 times liquid, 40% Duofengnong wettable powder 400 times liquid, 50% Lide wettable powder 600 times liquid, 36% methylthioxine suspension agent 500 times liquid spray to control, sprayed once every 7 to 10 days, continuous prevention and control 2 to 3 times. Remember to stop taking the medication 10 days before harvest. For shed cultivation, 5% bacterium dust removal agent and 6.5% metomycerin dust spraying powder spraying powder can be used to use 1 kg per acre.
The common insect pest of Artemisia annua is aphid, aphid as a pest of the sucking mouthpiece, often clustered in the leaves, young stems, flower buds, top buds and other parts, stinging sap, so that the leaves shrink, curl, deformity, serious causes branch and leaf wilting and even lead to the death of the whole plant of Artemisia annua. When we find too many aphids, we can use 50 ml of 25% aphid aphid clear milk oil per mu, or 1500 to 2000 times liquid spray of imidacloprid series products, 10% of aphid net 60-70 grams, 20% of imidacloprid 2500 times liquid, and 25% anti-aphid 3000 times liquid spray for prevention and control.
These pests and diseases of Artemisia annua are not terrible, as long as they are detected early and treated early. It will not have much impact on its production.
These are some of the key points to note if you want to grow Artemisia annua at a high yield. In fact, no matter which kind of plant, we want it to have high yields, we have to understand its species, and then choose a category suitable for the climate environment of their own location to plant, at the same time, we must actively learn cultivation techniques, combine theory and practice, do not panic when facing diseases and insect pests, as long as you use the right method, you will naturally grow healthily and achieve good benefits for us.
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