How much does a holly sapling cost? Detailed explanation of key planting techniques

Holly is native to China, mainly distributed in our country and eastern India as well as Southeast Asia, but it is not widely planted in our country. Many places encourage planting holly because it has strong resistance to and absorption capacity for soot and toxic gases, and is especially suitable for urban use as hedges, green walls or cluster planting in gardens. It is a preferred tree species for landscaping at airports, highways, residential areas, factory areas, shelterbelts and courtyards. Because of its strong fire resistance, it can be used as a forest fire barrier. So how much does a holly sapling cost? What are the key planting techniques?

1. How much does a holly sapling cost?

The price of holly saplings is related to height, age, propagation method, etc. Generally, 1-2 year old seedlings with a height of 8-15cm cost 0.4 mao each. For 35-45cm tall holly landscaping project seedlings, the wholesale price is 0.5 yuan each; a holly ball with a crown width of 50cm is 8 yuan each; an 80cm crown width holly ball is 26 yuan each; a 1m crown width holly ball is 40 yuan each; a 1.2m crown width holly ball is 85 yuan each; a 1.5m crown width holly ball is 200 yuan each; a 2m crown width holly ball is 900 yuan each. Small-leaf boxwood saplings (cutting seedlings) are 0.09 yuan each; 15-20cm tall small-leaf boxwood transplanted seedlings are 0.3 yuan each; 25-30cm tall small-leaf boxwood transplanted seedlings are 0.4 yuan each; 34-45cm tall small-leaf boxwood transplanted seedlings are 0.55 yuan each; small-leaf boxwood clustered small fuzzy balls with a height of 30-40cm and crown width of 15cm are 0.8 yuan each; those with a height of 35-40cm and crown width of 20cm are 1.8 yuan each; those with a height of 40-50cm and crown width of 25cm are 2.8 yuan each. The price of small-leaf boxwood balls is the same as that of holly balls.

2. What are the key techniques for planting holly seedlings?

1. Transplanting seedlings

When the seedlings are 1.5cm tall and true leaves appear, transplant them into plastic bag nutrition pots and arrange them in the seedbed. The plant spacing is 6cm, the row spacing is 12cm, the plastic bag diameter is 5cm, and the pot height is 10-12cm. After the seedlings are transplanted, they are afraid of high-temperature sunscald and drought, so a shade shed should be set up in time with 75% shading net to provide shade and retain moisture.

2. Fertilization

This is mainly done during the vigorous growth period of the seedlings. In April, spray the leaves once every 5 days with a solution of 0.1-0.3% superphosphate and potassium dihydrogen phosphate to promote root growth and development and stem lignification. From July to August, spray the leaves once every 5 days with 0.1% urea solution. In the later stage of seedling growth, spray the leaves once every 5-7 days with 0.3% potassium dihydrogen phosphate solution or 0.2-0.3% potassium sulfate solution to promote seedling lignification and enhance overwintering cold resistance.

3. Cold protection

After autumn, apply more potassium fertilizer to promote seedling lignification. In the later stage, appropriately shorten the shading time. From early September, gradually remove the shade net to increase light exposure. Before the arrival of extreme winter temperatures, build an arched shed and cover it with film to protect against cold and preserve the seedlings.

4. Pest and disease control

Although holly has few pests and diseases, it is by no means free of the need for control. Whether for landscaping or tea production, integrated control is advocated, with emphasis on protecting the environment. First, prune carefully and finely, and promptly remove diseased and pest-infested branches, dead branches, and excessively dense inner branches. By reasonably adjusting the tree body and the structure between trees, improve ventilation and light conditions and worsen the living environment for pests and diseases. Second, use biological techniques to eliminate pests, utilize natural enemies, and adopt measures such as artificial rearing and release and introduction to increase the population of natural enemies and control the number of pests. Third, advocate the use of biological pesticides, including microbial-source pesticides, animal-source pesticides, plant-source pesticides, etc. Fourth, when necessary, mineral-source pesticides may be used, such as Bordeaux mixture, lime sulfur mixture, etc.