How to plant Cinnamomum camphora in Suining area

It can be planted. Suining County belongs to a warm temperate zone with a slightly maritime monsoon climate.

The growing environment of camphor tree;

The adaptive altitude is below 1800 meters, and the altitude of the growth areas south and southwest of the Yangtze River can reach 1000 meters. It mainly grows on sunny slopes, valleys and river banks, and the subtropical soil is fertile. It is also often planted on hillsides or valleys.

Cinnamomum camphora is more fond of light and slightly resistant to shade; It likes warm and humid climate, and its cold tolerance is not strong. Suitable for growing in sandy loam, more resistant to water and humidity. However, attention should be paid to maintaining soil moisture when transplanting. Waterlogging is easy to cause root rot and death due to lack of oxygen, but it is not tolerant to arid, barren and saline-alkali soil. The taproot is developed and deep, and can resist wind. Strong germination and pruning resistance. The growth rate is moderate, and the tree shape is huge like an umbrella, which can provide shade and keep out the cold. It has a long survival period, can grow into a towering ancient tree for hundreds of years, and has a strong ability to smoke and dust, conserve water, fix soil and prevent sand, and beautify the environment.

Planting method:

Reasonable close planting: pruning growth method. Generally, only 600-700 plants are planted per mu in Cinnamomum camphora field, but the planting amount of Cinnamomum camphora seedlings we planted is 1200- 1400 plants per mu. Through reasonable close planting, one is to improve the reproductive capacity of land per unit area and increase 600-700 plants per mu; Secondly, by pressing grass, the weeding cost is reduced by 45-60 yuan per mu, and the fertilizer utilization rate is improved; Third, reasonable sowing among groups and adjusting illumination can increase the plant height by 50-70 cm in four years to ensure the plant shape is tall and straight; Fourth, pruning often reduces ineffective consumption and promotes top growth.

Secondary transplantation: superficial fertilization. The cultivation of Cinnamomum camphora seedlings was explored by using the new technology of secondary transplantation (that is, transplanting the taproot of the seedling to the two-year seedling in the same year is one transplant, with more than 6000 plants per mu). Two-year-old big root seedlings were transplanted to nursery for sale for the second time, and planted per mu1more than 500 plants). In addition, the surface application of chemical fertilizer, diligent application of thin fertilizer, combined with the application of phosphorus and potassium fertilizer can promote the growth of fertilizer roots to the tillage layer and form a dense fibrous root group, which ensures that the sold seedlings are muddy and resistant to transportation, and the survival rate is over 99%, which is 5%-9% higher than that of conventional seedlings and about 18% higher than that of direct seedlings.

Going big and staying small: the method of listing in batches. After reasonable close planting and thin application of chemical fertilizer, our camphor tree seedlings went on the market 1-2 years earlier than the conventional seedlings. The market capacity is about 350-400 plants per mu per year. On the one hand, occupy the Cinnamomum camphora market as soon as possible to speed up the capital turnover, on the other hand, properly adjust the light between plants to speed up the plant thickening and win time for the next round of development.

Trench cleaning in rainy season: irrigation method in dry season. Cinnamomum camphora is not only afraid of drought, but also of humidity. In the case of long-term water accumulation, it is easy to cause rotten roots, squatting seedlings and even death. Generally speaking, the leaves are yellow and do not stretch, the old branches are dull, and there is no color for three years after planting. It is required to ditch and prevent waterlogging after rain, dig water frequently in dry years, and apply fertilizer frequently in the tide. Generally, the fertilizer is applied 2-4 times a year, the fertilizer dosage is 40 kg/mu of compound fertilizer and 40 kg/mu of urea, and the water discharge depends on the weather.

Pest control: pest control is generally twice a year. The first time was in early July, and the control object was marsupial moth. The second time was in the middle and late September, and the control object was the thorn moth. Medication method: Generally, spray 0.5 kg trichlorfon essence per mu, prune and remove insect bags and diseased plants in winter to ensure normal growth in the coming year.