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Q: How to plant osmanthus seeds?

The methods of planting Osmanthus fragrans are as follows:

1. Planting method

Before sowing, the land must be prepared and sufficient base fertilizer applied. It can also be sown in indoor seedbeds. When sowing, place the hilum on its side to prevent the radicle and young stem from bending, which will affect the growth of the seedlings in the future. After sowing, cover with a layer of fine grass, and then cover with grass to provide shade and moisture. Keep the soil moist at all times, and seedlings can emerge that year. The amount of seeds used per acre is about 20 kilograms, which can produce about 30,000 seedlings. After the seedlings grow in the seedbed for 2 years, they can be transplanted and cultivated in the third year.

It should be planted in spring or autumn, especially on cloudy or rainy days. Choose a well-ventilated, well-drained and warm place with sufficient sunlight or semi-shade. The soil balls should be well balled before transplanting to ensure the survival rate. The planting soil needs to be acidic and alkaline soil should be avoided. The ratio of potted osmanthus potting soil is 2 parts of leaf mold soil, 3 parts of garden soil, 3 parts of sandy soil, and 2 parts of decomposed cake fertilizer. Mix them evenly and then pot or repot them, which can be done before germination in spring.

2. Light temperature

It can be cultivated in the open field and overwinter in areas south of the Yellow River Basin. Potted plants should be moved indoors in winter and placed in a sunny place so that they can fully receive direct sunlight. The room temperature should be kept above 5°C, but not exceed 10°C. After germination in April of the following year, move it outdoors, first place it in a leeward and sunny place for maintenance, and then gradually move it to a ventilated sunny or semi-shady environment after stable growth, and then perform normal management. Insufficient light during the growth period affects flower bud differentiation.

3. Watering and fertilizing

Before planting in the ground, herb ash and organic fertilizer should be mixed into the tree hole, and water should be poured once after planting. Before the new technology is released, keep the soil moist and do not add fertilizer or water. Generally, nitrogen fertilizer is applied once in spring, phosphorus and potassium fertilizer is applied once in summer to make the flowers and leaves flourish, and overwintering organic fertilizer is applied once before winter, mainly decomposed cake fertilizer and stable manure. Avoid heavy fertilizers, especially feces and urine. Potted osmanthus should be placed in a low-temperature greenhouse in northern winter. Pay attention to ventilation and light transmission indoors and water less. After leaving the house in April, the amount of water can be increased appropriately. During the peak growth season, you can pour an appropriate amount of light fertilizer and water, and during the flowering season, the fertilizer and water can be slightly thicker.

4. Plastic pruning

Depending on the tree, set the large frame according to the tree's posture, and remove other gourd bars, overly dense branches, leggy branches, cross branches, and diseased and weak branches. , allowing ventilation and light transmission. For trees that are strong at the top and weak at the bottom, the upper branches can be shortened by 1/3 to make the overall tree strong. At the same time, apply a healing antiseptic film on the pruning mouth to protect the wound.

The focus of removing sprouts and wiping buds is on the root and neck area of ??saplings near the ground. This needs to be done multiple times a year, especially in spring, summer and autumn before the shoots flourish. Due to various reasons, sprouting must be removed If the buds are not wiped out in time, the sprouts have already grown. When pruning, they should be completely removed from the base and no live piles will be left. Otherwise, the more sprouts will be pruned, the more sprouts will grow.