In the autumn and winter of the previous year, all nurseries were reclaimed once, with row spacing of 1m× 1.5m (after two years, they grew thick and tall, and separated by one tree, so that the row spacing became 2m× 1.5m) and planting holes were 0.4m× 0.4m× 0.4.
Apply 2-3 kg of farm manure (pig manure and cow dung) to each hole, and 0.5 kg of phosphate fertilizer as base fertilizer. Mix the base fertilizer with the surface loam and fill it in the pit. Fertilizer is easily absorbed by saplings after being eroded and fermented by winter snow and spring rain.
2. transplantation. Transplanting is best when the sap has not flowed out or just flowed out, usually from early February to early March. When picking seedlings, leave as many roots as possible and do less harm to the roots. Sow as soon as possible after taking it. If you need to adjust seedlings from other places, pay attention to moisturizing to prevent seedlings from dehydration. After planting, the soil should be compacted and watered once to make the roots of seedlings closely connected with the soil.
3. Water and fertilizer management. After transplanting, if the nursery is flooded by heavy rain, ditch should be dug for drainage. In case of drought, use water to fight drought.
In addition to applying sufficient base fertilizer, apply fertilizer three times a year, that is, apply 0. 1-0.3 kg of available nitrogen fertilizer to each plant in late March to promote its growth and multiple shoots; In July, each plant was applied with 0. 1-0.3 kg of effective phosphorus and potassium fertilizer to improve its drought resistance; From June+10 in 5438, 2-3 kilograms of organic fertilizer (such as farmyard manure) was applied to each plant to improve the cold resistance and prepare for overwintering.
4. Trimming and shaping. Osmanthus fragrans has strong germination ability and has the characteristics of naturally forming shrubs. It is shot twice a year, in spring and autumn respectively. If it is not pruned and germinated in time, it is difficult to cultivate tall plants, and it is easy to form the phenomenon of dense upper branches and sparse lower branches.
When pruning, except for those who are not good because of the growth of trees and branches, we should give priority to thinning branches, only properly thinning out the peripheral branches that are too dense, and cutting off the overgrown branches and pests and diseases to improve the ventilation and light transmission conditions of plants. It is necessary to erase the sprouting branches from the base of the trunk in time to avoid consuming nutrients in the tree and disturbing the tree shape.
5, loosen the soil and weed. Intertillage in spring and autumn should be done separately, combined with fertilization to improve soil structure. Laying the foundation once before wintering and brushing the trunk white once can enhance the cold resistance. Weed 2-3 times a year to avoid the competition between weeds and seedlings for water, fertilizer and light.
6. Precautions: It should be planted in spring or autumn, especially in cloudy or rainy days. Choose a ventilated, well-drained, warm place with sufficient sunlight or semi-cloudy environment. Soil balls should be laid well for transplanting to ensure the survival rate. Planting soil should be acidic and avoid alkaline soil. The pot soil of potted osmanthus fragrans is composed of 2 parts humus soil, 3 parts garden soil, 3 parts sandy soil and 2 parts decomposed cake fertilizer. Mix well, then put on the pot or change the pot, before germination in spring.
In the south of the Yellow River basin, it can be cultivated in the open field for wintering. Potted plants should be moved indoors in winter, placed in a sunny place and fully exposed to direct sunlight. The room temperature should be above 5℃, but not more than 10℃. After germination in April of the following year, it is moved outdoors, first placed in the leeward and sunny place for maintenance, and then gradually moved to a ventilated sunny or semi-shady environment after the growth is stable, and then normal management is carried out. Insufficient light during the growth period affects flower bud differentiation.