Marigold planting method
Marigold is an annual herb that is cultivated throughout the country from July to September each year. Marigold has low requirements for planting, prefers a warm, sunny environment, is resistant to cold and drought, but is not suitable for high temperature and humid environment. Below you will find a detailed description of the marigold planting method from each method. (1) Open field cultivation Open field planting can be carried out in mid-May. Before planting, the base fertilizer is first applied and mixed with anti-ground pests and broad-spectrum antibacterial agents. The row spacing of the planting plants is 40 cm × 40 cm, and the time is selected after the sun sets in the cloudy or afternoon sun. Watering in time after planting to prevent flooding and flooding the seedlings. Do a good job in the management of cultivating and weeding, pest control. If the potted marigold seedlings are used for potted planting, the last bud can be taken 15 days before the festival. Before the upper basin, according to the dry and wet conditions of the soil, the water was poured 5 days in advance, and the root treatment was carried out. The whole plant was transplanted into the pot with a diameter of 25-30 cm. After the upper basin, place the shelter from the shade and strengthen the management after filling the water for the exhibition. (2) potted plants In mid-May, when the seedlings grow to 4-6 cm and grow 2 to 4 true leaves, they are transferred to a bovine eye bowl containing culture soil, one per pot. After pouring the water in the upper basin, the seedlings are moved to the sunny side after 5 days, and the seedlings are normally managed. In the first half of June, when the seedling height was 15 cm or more and 4 to 6 branches, the first topping of the heart (20 cm in diameter) was planted. When you are in the upper basin, be careful not to break the roots and damage the roots. After the upper basin, you should carry out regular management work such as pine basin, watering, fertilization, pest control, and topping control flowering. When the side branches grow 3 to 4 pairs of leaves, the heart is picked in time, and the cutting propagation can be carried out at the same time. In the middle of August, the final fixed-point work will be carried out, and the short marigold potted flowers with flowers, colorful and full plants will be available for the festival. (3) Lighting Hi sunny, not yin. (4) Temperature Not cold-resistant, warm, avoid hot, the most suitable growth temperature is 18 ~ 20 ° C, sensitive to day and night temperature difference, the smaller the temperature difference, the lower the plant. The growth period is from April to October. (5) soil It has strong adaptability and can grow well in general gardens. Drought-tolerant, resistant to transplanting, poor growth in wet climates, avoid water accumulation. (6) Watering Open field cultivation must be based on the dry and wet conditions of the soil, the soil can not be wet for a long time, and the rainy season is drained in time. Potted plants can be watered according to the dry and wet conditions of the soil. The suitable time is about 10 am and 5 pm. (7) Fertilization The requirements for fertilizer and water are not strict. In addition to applying a small amount of thin fertilizer before planting the seedlings, it is not necessary to apply too much topdressing in the future, especially in the later stage of growth. The potted plant is fully fermented with liquid fertilizer for topdressing once a month. Spray 1 ‰ of urea twice in the seedling stage, and apply 1 ‰ of potassium dihydrogen phosphate to the leaves two weeks before the flowering. After spraying the liquid fertilizer, the plants are washed with water, and the water is poured again one morning after fertilization. If urea or potassium dihydrogen phosphate is applied, it must be carried out in the morning and evening or on cloudy days. (8) Pest control Marigold is vulnerable to red spiders and mites, and can be sprayed with 1500 times of leva liquid. In the high temperature and high humidity season where marigold root rot is frequent, it is necessary to pay attention to ventilation and drainage, and avoid accumulation of water. At the seedling stage, special attention should be paid to the prevention of rickets or bacterial wilt. Plants can be sprayed with 75% chlorothalonil WP 600 times. For bacterial wilt, plant control can be sprayed with 75% chlorothalonil WP 600 times. [Small series summary] Marigold is native to Mexico and is now cultivated by artificial cultivation in China. It is a common landscape flower. Marigold has a large flower shape and a long flowering period. Like a string of red flowers, marigold is a common flower bed set flower. 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