Seed planting method of Pinus elliottii

First of all, the seeds should be soaked for about 4 days, and then sowed according to the interval of 20 cm per row and 10 cm per plant, if the seedlings grow too densely, they can be transplanted into flowerpots, the soil should be kept moist in the process of growth, the trunk should be shaped in the later stage, and then disorderly branches and old leaves should be cut off, and appropriate amounts of nitrogen, phosphate and potassium fertilizer should be applied, and timely prevention and control should be carried out when diseases and insect pests are found.

Soak the seeds

Before sowing, the seeds of Pinus elliottii should be soaked for about 4 days to fully absorb water. During this period, the seeds can be soaked in cold boiled water, which is helpful to improve the germination rate of seeds.

2. Sowing method

The seeds can be sown at 20cm per row interval and 10cm at each plant interval, then backfilled with soil and covered with a layer of thatch to moisturize. During this period, the seeds can be sprayed with water once a day, and the grass cover can be lifted after 8-9 days.

III. Seedling management

After sowing, the seeds of Pinus elliottii will germinate in about 40 days. if the seedlings grow too dense, they can transplant the seedlings with soil into the flowerpots, pay attention to that the new seedlings should not be drenched with water, and wait for the seedlings to grow to about 6 leaves. can be properly drenched with some biogas to dilute water.

IV. Seedling transplantation

Generally, it is better to transplant from March to April in spring, small seedlings need to be transplanted with soil, large seedlings should be transplanted with soil balls, the soil should be soaked thoroughly after planting, the soil should be kept moist in the process of growth, and should be kept in a semi-shady place in the hot summer, and fertilizer should be applied every two months. if pot planting is carried out in winter, we should pay attention to cold protection and reduce watering times.

5. Material selection

The billet of Luohan pine should be stretched on four sides, the stem is thick and thin from the base, the curved arc changes evenly, and the branches are reasonable. The first pull point is at the 1 / 3 or 2 / 3 of the trunk, which is more in line with the golden section ratio, and the ornamental effect is better.

VI. Integer

Luohan pine belongs to a whorled branch, which can be cut off according to the stereotyped trunk, keeping 2-3 branches in a suitable position, and then binding the branch with wire to make the main branch droop slightly. It can be pruned once in June and July every year, usually mainly by coring.

7. Watering

In summer, water should be watered once every morning or evening, and foliar water should be sprayed once in the afternoon. when the temperature in spring and autumn is below 25 ℃, it can be watered every 2-3 days. In winter, the basin can be buried in the ground and watered properly according to the dry humidity in the basin.

VIII. Fertilization

Luohan pine is mainly ornamental leaves, mainly apply nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer during the growth period, apply sufficient base fertilizer in combination with changing pots in spring, apply some dilute alum fertilizer in the peak growing season, and apply 01% urea and 3% leftover beer, which is beneficial to the thick and green leaves.

9. Picking leaves

In order to improve its ornamental value, the old leaves of Pinus elliottii can be removed in March, during which the petiole should be retained to stimulate the growth of axillary buds to become new and green.

Prevention and control of diseases and insect pests

The common diseases of Luohan pine are leaf spot and anthracnose. During this period, 50% methyl thiophanate wettable powder can be sprayed for control. Insect pests are mainly shell insects, red spiders, big coir moth and so on. Generally, 40% omethoate EC 1500 times can be sprayed for control.