Cultivation Techniques of Purple Skyflower
1. Reproduction
Although M. mirabilis can flower, but it is not easy to be a result, asexual propagation is generally carried out using ramets or cuttings. The propagation of the ramets usually takes place before the plants enter dormancy or resume growth, but the propagation coefficient of the ramets reproduces is low, and the growth of the plants after the ramets is weak, so cutting propagation is commonly used in large-scale cultivation. When the cuttings are propagated, shoots with a certain degree of maturity should be selected. Tender or over-age shoots should not be selected for cuttings. The length of the panicle is 15-18 cm. The lower leaves are removed and only the upper two leaves are left, and the two leaves are cut in half. Article bars should be slanted to facilitate rooting. The soil used for cuttings is best added to the substrate such as vermiculite and perlite to facilitate the air permeability of the substrate. After the cuttings are placed in a cool place, after 4-10 days, when new shoots and new roots are formed, they are moved to the outside, and after the new roots are formed in large numbers, they are planted in the open field. Cuttings can be carried out throughout the growing period, but they are most likely to take root in spring and autumn. Cuttings can also be made directly in the open season during the appropriate growing season.
2. Transplanting
For large-scale cultivation, the loam with good drainage, rich in organic matter, strong water retention and fertilizer retention and good ventilation should be selected, and the soil is slightly acidic. The basal fertilizer was applied before transplantation. In the south, sorghum is used for cultivation, and it can be transplanted almost all year round. In northern China, it can be cultivated in semi-high sorghum or small sorghum. Transplanting in March-April, and in April-October, it can grow well in open field without convulsions. Planting spacing is 45 centimeters, plant spacing is about 35 centimeters, 2-3 plants per hole, about 4000-4500 points per acre.
The milfoil can also be grown in a container on the patio or balcony. The number of different plants can be planted according to the size of the container and the nutrient soil can be used as the potted soil. Usually it can be placed under strong light to make it grow vigorously, in the summer can be moved to a place with a slight shade, so as to avoid excessive sunlight, so that premature aging leaves.
3. Field management
Purple backed plover is a perennial plant that grows rapidly under suitable conditions and should be supplied with sufficient fertilizer and water to ensure that the product is crisp and tender and yields high. It is advisable that the production period be half a month to recover one fertilizer, and it is generally required to top-dress fertilizer watering 2-3 days after harvesting. The weather was poured 1 time a week when it was arid. In the northern region, roots can be moved into the greenhouse for winter production, or the whole plant can be planted in the Yangshuo or greenhouse, and then exposed to the open ground in the following spring. There are very few pests and diseases of the insects, and sometimes the aphids may harm the young stems and leaves. When they occur, they can be treated with insecticides in time to prevent transmission of viral diseases.
4. Harvest
After the transplant, harvesting can begin about 25 days. Harvested 7-8 pieces of leaves with a length of about 15 cm. When harvesting for the first time, leave 2-3 knots at the base of the stem to make the newly emerged shoots slightly pod-like. Half a month later, a second collection can be performed. From the second harvest, only one section is left from the base of the stem to control the plant height and plant shape. Southern winter grows slowly and can be collected once a month. The Beijing area can be harvested from April to October, and the harvest season is from August to September. 1 mu of land harvested up to 700 kilograms. If not eaten immediately after harvest, it can be wrapped in a film and stored at room temperature for about 6 days. If stored at a low temperature of 6-8°C, it can be stored for more than 10 days.
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