Sowing time of malachite grass

Malachite can be sown in all seasons. The previous article also said that malachite is a kind of plant with strong environmental adaptability. Theoretically, it can be sown all the year round, but the best sowing time is different in different regions. In order to improve the germination rate, the growth temperature of malachite should be controlled at 18 degrees Celsius, so according to 18 degrees Celsius, the sowing time in different regions is as follows: autumn sowing is generally best in the middle and lower reaches of the Yangtze River, while sowing is suitable in the south all the year round, while spring sowing is popular in the north.

Does such an adaptable plant make you want to plant a few malachite plants at home? But how to grow malachite? Next, the editor will take you to learn about it.

How to plant malachite seeds and when to sow malachite

Peacock grass thought it was a peacock-like herb, but it is not. It is an annual herbaceous flower of the genus Compositae. Its flower color is not as colorful as other flowers, but a little dark. This is also one of its characteristics. Let's take a look at how it is planted.

How to plant malachite seeds

1. First of all, choose a container such as a box and bowl, and put sandy soil in the container to create a soft and comfortable germination environment for the seeds.

2. Then sow the seeds on the soil layer and cover them with a layer of straw to make the seeds contact with the soil as much as possible.

3. Then sprinkle the straw used as a mulch with a sprinkler to let the water slowly drop through the straw and soak into the soil.

4. Finally, wait for the seeds to sprout, and wait for the seeds to germinate before you can lift the straw.

When will the malachite be sown?

There are many varieties of malachite, and the planting time of different malachite is also different. the spring and autumn sowing series of malachite is about from September to February, and the daytime temperature in the south is above 15 degrees, while the Jenny series is the most suitable for summer sowing from March to August. There are some other malachite grass sowing time is also different, you can ask the merchant when buying seeds.

The function of malachite grass

1. Ornamental value of the garden the flowers of malachite are colorful and varied, including yellow, orange, red and other colors, as well as double petals and other styles. The single-layer malachite grass is beautiful and beautiful, and the double petal malachite grass is more beautiful. Because its flowers are beautiful, they are often used as flower beds to decorate flowers, and peacock grass is often seen on the lawn. Maybe many people don't know what it's called, but you must have seen it in the park and by the road! In addition, malachite is also one of the commonly used species in flower arrangement and bouquet.

2. Medicinal value

The flowers and leaves of peacock grass can be used as medicine, with the effect of clearing away heat and detoxification, resolving phlegm and tonifying blood. It plays a significant role in the treatment of common diseases such as cold, pertussis and tracheitis. In the wild environment of malachite, it is suitable for high-altitude mountains. Residents in the Caucasus Mountains of Russia often eat malachite, which is said to have the effect of prolonging life.

Common diseases of malachite grass and their control

The main results are as follows: 1. Its common diseases are brown spot, powdery mildew and grass stem blight, among which grass stem blight is the most common, which mainly harms the stems and leaves of peacock grass. At the initial stage of the disease, a rash-like bulge appears on the plant stem, the color is gray, and the shape is fusiform or round. In the later stage, the rash-like bulge will crack. Grass stem blight also occurs from time to time in the growing period of Peacock grass, and when it is serious, it can lead to plant death.

Prevention and control methods: first, timely drainage after rain to prevent moisture retention, followed by spraying drugs at the initial stage of the disease, carbendazim can be selected. Specific solutions of Cyclohexin EC, Chlorothalonil suspension and Lvdibao suspension. The spraying period is seven days and can be sprayed 2 or 3 times.

2. Its common insect pests and its control of malachite are mainly red spiders. Red spiders will prick and suck stem and leaf sap, which results in reduced moisture in the damaged parts, dense pale spots on the surface of leaves, curling and yellowing leaves, and yellow leaves in severe cases. Rolled leaves, scorched leaves, fallen leaves and even death. Red spider is also the transmission agent of viral disease.

Control methods: strengthen the cultivation and management, the initial stage of pest occurrence can choose 20% triclofenac EC 500 times 600 times for control.

In fact, peacock grass does not just rely on its flowers to absorb powder, in fact, it is covered with treasures all over the body, which not only has a very good ornamental effect, but also has its medicinal value and the effect of heat-clearing and detoxification. It is the favorite of old traditional Chinese medicine. In this way, we must take good care of the precious plant to avoid insect pests.

How to plant malachite grass and points for attention in breeding

Peacock grass is a kind of seasonal plant, which is very popular because of its bright petals, high ornamental value, strong adaptability and good feeding ability. Next, I would like to introduce the planting method of malachite, as well as the points for attention of malachite breeding.

How to plant peacock grass

Seeds can be sown all the year round. Because the sowing temperature of malachite is higher than 15 ℃ (or under the condition of heating and heat preservation), the sowing time in the middle and lower reaches of the Yangtze River is usually from August to November. In the south with a warm climate, seeds can be sown all the year round, while spring sowing is popular in the north. If the seedlings are raised in early spring, attention should be paid to ensuring a certain growth temperature to avoid growth stagnation as far as possible. Sowing should use loose artificial media, bed sowing, box sowing seedlings, conditions can be used to raise seedlings. After disinfection and slightly covering after sowing, the optimum temperature for germination of malachite was 22 ~ 24 ℃.

(1) White exposure (germ exposure) 2-5 days after sowing. Malachite seeds germinate without light and are usually covered with a thin layer of medium after sowing, which can not only block the light, but also keep the seedlings moist at the initial stage. Keep the medium moist, but to prevent overwetting, keep the temperature at 21: 24 ℃.

(2) about 7 days from radicle exposure to full development of cotyledons. Once the radicle is exposed, the temperature should be lowered and the medium should be slightly dry before watering to facilitate better germination and root growth. And see light apply a small amount of fertilizer.

(3) during the rapid growth period of seedlings, the growth of malachite seedlings should prevent the humidity from being too high, so the medium should be dried thoroughly between two times of watering, of course, the medium should not be too dry to cause seedlings to wither, and the medium and environmental temperature can be appropriately reduced to 18 ℃. Apply fertilizer alternately every 5 to 10 days. If the medium temperature is lower than 18 ℃, avoid applying ammonium nitrogen fertilizer. In the later stage of this stage, the root system of the plant can grow to 3 cm, the seedling height can also be 3 cm 4 cm, and 2 pairs of true leaves.

(4) in the seedling stage, the root system has been formed intact at this stage. There are 3 pairs of true leaves, and the temperature can be reduced to 15: 17 ℃, but it is best not lower than 15 ℃. But avoid using ammonium nitrogen fertilizer. As with (2), the medium should be dried thoroughly between the second watering and ventilation should be strengthened to prevent overgrowth. If the seedling fails or there are problems, the main reasons for eliminating the possible seed quality problems are: first, the pH value of the medium is too low, and the main symptoms are necrotic spots, scorched edges and necrotic growth points on the old leaves. Second, when the PH value is lower than 6.0, it will also cause excessive amounts of some trace elements such as magnesium, iron, sodium and zinc. The main solution is to keep the Ph value of the medium between 6.0 and 6.7, which can be adjusted by adding 0.4526 kg of lime in 38 kg of water; third, raising seedlings at low temperature in early spring, if the temperature is too high, epidemic disease is easy to occur. It began to show water stains at the base of the stem, and then necrosis and lodging. Therefore, attention should be paid to raising the temperature and controlling the humidity as much as possible in early spring to prevent the occurrence of diseases. Fourth, pay attention to nutrition at the seedling stage, if the seedling stage is short of fertilizer, water and thin plants, small and old seedlings will be formed.

Matters needing attention in peacock grass culture

1. Light adjustment:

Peacock grass is a positive plant, growth and flowering require sufficient sunlight, sufficient light is also conducive to prevent plant overgrowth. However, from July to September in our province, it is necessary to avoid direct sunlight and cool down by shading around noon.

Second, temperature control:

The temperature can be reduced from 22 ℃ to 18 ℃ after potting, to 15 ℃ after a few weeks, and to 12: 14 ℃ before and after flowering. This temperature is ideal for forming a good plant shape, but it may be difficult to achieve this condition in practical production. Therefore, generally speaking, as long as it is more than 5 ℃, it will not be frozen, and it can grow well between 10 ℃ and 30 ℃.

3. Water and fertilizer management:

The key to water management is to use a medium with good drainage. Although it is important to keep the medium moist, it is necessary to dry properly before each watering. Of course, the medium should not be too dry and cause the plant to wither. For those cultivated completely in artificial medium, 20-10-20 and 14-0-14 fertilizers should be used alternately once every 10 days with the concentration of 200~250ppm. When the temperature is low in winter, the use of 20-10-20 fertilizer should be reduced. If the medium is in ordinary soil, the compound fertilizer can be mixed as base fertilizer before the medium is put into the basin. If the fertility is not enough, then apply water-soluble fertilizer.

Fourth, transplant the upper basin:

If the seedlings are raised with an acupoint plate, they should be transplanted to the pot when they grow to 2 or 3 pairs of true leaves. In Zhejiang area, most of them are accustomed to using 12 cm caliber nutrition bowls, once on the basin in place, no longer change the basin. If the seedlings are sown in an open seedling tray, sow sparsely and transfer the seedlings directly to the pot when there are 2-3 pairs of true leaves.

5. Disease and pest control:

The common diseases of peacock grass are powdery mildew, brown spot, red spider, stem blight and so on.

1. Symptoms of powdery mildew and brown spot: choose better soil, at the same time, pay attention to the amount of fertilization and water and electricity in its growing period, under certain circumstances, clean up diseased plants and leaves in time, and burn diseased plants at the same time. Timely spraying rust Fanning and other fungicides.

two。 Grass stem blight: in the early stage of the disease, it will appear gray rash-like protuberance on the stem, round or fusiform, protruding list, exposing black conidium disk. The growth period occurs from time to time, when the stem and branch die seriously, the growth and development of the whole plant is inhibited, affecting the ornamental. Prevention and control methods: drainage can be carried out in time after the rain, at the same time to prevent moisture retention, at the same time to maintain its dryness. At the initial stage of the disease, you can choose 25% carbendazim, 800 times cyclohexane EC, 40% chlorothalonil suspension 500 times, and 30% Ludebao suspension 400 times. Spray once every 7 days for a total of 2 or 3 times.

3. Red spider: can set up that cultivation management, in the initial stage of the pest can be used 20% diclofenac EC 500 times 600 times for spray control.

The above is for you to introduce the malachite planting method, as well as the points for attention of malachite breeding, are we clear? Please pay attention to more household knowledge.