A kind of cultivation method of cedar seedling

Abstract

A method for cultivating cedar seedlings, which adopts single seed sowing in a nutrient bowl in a thermal insulation facility (building a long-term or temporary shed), and sows in the thermal insulation facility, artificially increasing the temperature and humidity for seed germination, which can effectively prevent the seeds from being caused by drought. Dehydration does not germinate, and after emergence, it can also be protected from adverse weather such as wind and frost, providing a good growth environment for seedlings. The emergence rate in the nutrient pot is over 97%, which is one month earlier than field sowing. The height of the seedlings is 30-40cm when transplanting in the second year, which is 10-20cm higher than the seedlings sown in the field. The nutrient pot grows in the shed, and the management of shading, rain prevention, drainage, and pest control is convenient. It can grow into large seedlings in the same year, reaching It achieves the purpose of early sowing, early germination, increased emergence rate and annual growth. At the same time, on-demand sowing in the nutrient pot can more effectively improve the high-quality emergence rate and seed utilization rate of seedlings, and achieve the purpose of seedling high-quality and efficient seedling cultivation.

Description

Technical field [0001] The invention relates to the technical field of tree seedling cultivation, in particular to a method for cultivating cedar seedlings. Background technique [0002] Cedar (scientific name: Cedrus deodara (Roxb.) G. Don) is a plant of the cedar genus of the Pinaceae family. The cedar tree is tall and beautiful, and it is a famous ornamental tree in landscaping. With the development of economy and society, people pay more and more attention to environmental protection. In urban greening, cedar has a wide range of uses. It is not only an excellent first choice for street trees, but also an indispensable tree species in landscaping. Due to the good market prospects of cedar, the demand for cedar seedlings is increasing. [0003] The propagation of cedar seedlings is mainly sowing propagation and cutting propagation. Sowing and breeding are generally carried out in early spring. In Tianshui, Gansu, spring is mostly dry, and low temperature and frost occur frequ...

AI Technical Summary

Problems solved by technology

In addition, male cedar plants generally bloom after the age of 20, while female plants bloom and set seeds after the age of 30. Because of the different flowering periods of male and female plants, the natural pollination effect is poor, so cedar seeds are more precious, and the amount of seeds required for field sowing Larger, 15-20 kg per mu, low seed utilization rate

The survival rate of cutting propagation is affected by the age of the mother tree and cuttings. After cutting, it is necessary to spray water every morning and evening or spray at high temperature to cool down. The facility needs to maintain a high temperature and humidity, and the rooting of cutting seedlings is slow. About 50 days, it is difficult to manage in ordinary greenhouses or plastic greenhouses, and it is difficult to take root