Seedling raising method of eastern white pine

Abstract

The invention discloses a seedling raising method of an eastern white pine, which comprises the following steps of: carrying out seedling raising of the eastern white pine in winter by utilizing a greenhouse, prolonging the growth period of the eastern white pine, avoiding low-temperature freezing damage in the seedling period and improving the quality of seedlings; using quartz sand instead of river sand during seed lamination, which is beneficial to improving the working efficiency during dibbling; during seeding, using a degradable non-woven fabric nutrition pot instead of a seedling tray,a plastic nutrition pot or open field seeding, so that the bed changing or transplanting times can be effectively reduced, and the seedling stage does not exist; in the cultivation medium, using decomposed sheep manure instead of other decomposed organic fertilizers, so that the pH value of the soil can be improved, and the soil fertility can be improved; using peat soil instead of garden soil, sothat the organic matter content in the matrix is effectively improved, and the stability of the pH value of the soil is maintained; after the dibbling is finished, spreading a layer of 0.3-0.6cm sawdust, so that the seeds can be prevented from floating upwards during watering. The method improves the breeding quantity and quality of the seedlings and saves the cost.

Description

Technical field [0001] The invention relates to the field of planting eastern white pine, in particular to a method for raising seedlings of eastern white pine. Background technique [0002] Eastern White Pine ( Pinus strobus ) Is a relatively fast-growing tree species in the forests of northern Canada, mainly used in furniture and construction industries. At the same time, the eastern white pine is light and hardy and has a beautiful tree shape. It is also an excellent greening tree species. It is cultivated more in Canada and the United States and is one of the most valuable trees in eastern North America. The Jilin Academy of Forestry Science introduced eastern white pine seeds from the United States and Xiongyue, Liaoning in 1981, and conducted introduction and domestication experiments in the central and eastern part of Jilin Province. The current growth and development is good, it can bloom and bear fruit normally, and grow at a faster rate. The fastest growing tree speci...

AI Technical Summary

Problems solved by technology

These two traditional methods of raising seedlings of eastern white pine are sown in spring, and the seedlings grow in the open field for less than 7 months in the first year, which affects the accumulation of dry matter and growth of eastern white pine. The area needs to survive the winter and prevent cold for three consecutive years. Although these operations can ensure the normal and robust growth of the seedlings, the Eastern White Pine has poor cold resistance and slow growth at the seedling stage. It is time-consuming and labor-intensive to resist the low temperature in winter in Jilin Province, and to set up a small shed for many years in a row to prevent the cold

At the same time, the root system of eastern white pine grows a lot during the seedling stage, and the seedlings often die due to damage to the root system during the transplanting process.

Therefore, adopting the technologies disclosed in these two reports for raising seedlings has great limitations, and the work of overwintering in the open field in the later stage is heavy and complicated, and the loss of transplanted seedlings is high.