Analysis of seedling varieties and prospect in the next few years

This is determined by the characteristics of the flower and seedling industry. A good variety can breed a big market. Therefore, the selection of characteristic varieties plays an important role in seedling operators and industrial development. At present, the seedling industry is undergoing a transformation from extensive to facility, horticulture, specialization and variety, and is in a critical period of "transformation and upgrading". The market of seedling products began to be refined and differentiated, and the application and consumption gradually became rational. In addition to urban and garden greening, "disposable" flower seedling products such as seasonal flowers and flower beds for family consumption and major urban festivals have begun to rise, and seedlings cultivated by gardening, renovation and container cultivation will become more and more popular and even become the main products to open the international market. Therefore, a region, an enterprise and a nursery must have their own advantages and representative seedling varieties. Only in this way can we gain an advantage in market competition and be conducive to sustainable development. As a dominant variety, it must first have its own characteristics, that is, the variety should be new, the germplasm resources should be available, and the local cultivation environment can meet the needs of the variety characteristics; Secondly, it is necessary to have good seedling quality and a certain yield to meet the market demand.

According to the production situation and development trend of existing flower seedlings, the following types of flower seedlings can be used as leading varieties for nursery farmers to choose for reference: 1. Export-oriented flower seedlings are unfamiliar to most seedling operators due to market information, export channels, technical requirements and other factors, but they have great market potential and development prospects. For example, Taoruiyang and Toona sinensis have a good market demand in Japan, because Japan has no domestic resources, so it has to rely on imports. Boxwood is cultivated in Germany and other European countries and widely used in European gardens. There is no question of biological adaptability. Small bonsai such as Pyracantha fortunei, Podocarpus microphylla, Acer truncatum, Elm and Cedar, which are rich in domestic resources, can be exported. However, the standardization of planting matrix, packaging, transportation and quarantine of seedlings must be implemented in accordance with the production standards of the European Union and the requesting countries. Miao farmers must pay attention to this. 2. The urban greening and ecological construction of seedlings oriented to the northern market is a national and long-term key work. The northern area north of the Yangtze River and even the Yellow River is vast, with relatively poor ecological environment and relatively few original suitable tree species. Therefore, it is a good way to cultivate seedling varieties suitable for the growth in northern China. For example, the hybrid Liriodendron chinense grows well after years of trial planting in Beijing, which can be popularized as a tree species and open up the northern market. Other varieties such as red leaf plum, cherry blossom, crape myrtle, magnolia, red maple and ginkgo are suitable for planting in northern areas such as Shandong, Beijing, Hebei and Tianjin. Evergreen seedlings such as cypress and Euonymus japonicus have been planted in Beijing for several years, which can basically adapt to the climatic conditions in the north. However, we must pay attention to the quality of seedlings. In the process of seedling cultivation, it is necessary to control the over-nutrition growth of seedlings, appropriately increase the application amount of phosphorus and potassium fertilizers, and improve their cold resistance. 3. Traditional excellent seedlings have characteristics. It is impossible for a local seedling to be without local traditional varieties, because the local tree species that have grown naturally for thousands of years are the most representative, and the most practical application in the market is also the traditional varieties with characteristics. Unless there are special landscape needs, the skeleton tree species in the general green space must be local traditional varieties. For example, osmanthus fragrans is a native tree species with cultural connotation in Hangzhou, and professional units have begun to cultivate excellent varieties with long flowering period, large flower shape and large flower quantity. The market prospects of these new varieties are definitely promising. Cinnamomum camphora is in great demand in the process of urban construction and is very suitable for street trees. Sapindus mukoraiensis, Fawu and Luanshu are also indispensable green seedlings in urban landscape construction. The traditional characteristic varieties in Xiaoshan District, such as Longbai, Buxus japonicus, Buxus japonicus and Sabina vulgaris, are very suitable for planting in reclaimed sandy land and have good market potential. 4. New and excellent varieties of seedlings New and excellent varieties of seedlings refer to seedlings introduced from other places or domesticated and cultivated by using wild resources. Apart from the hype in the market, few of these seedlings can really become new fine varieties. A simple way to determine through investigation is to observe all kinds of seedlings introduced and planted in previous years on the spot, and analyze and compare their growth performance according to the purpose of greening. For example, Photinia rubra, Hong Kong Beautiful Four Flowers, Hubei Pyracantha, Ligustrum lucidum, Mediterranean Fan, Liudaomu, Mosaic Collateral and so on. In recent years, it has been accepted by the market and the number of seedlings used has increased year by year. However, the cutting propagation speed of this kind of seedlings is very fast, and it is easy to produce homogenization and disorder of seedlings. Miao farmers should know the market information in time and adjust the planting structure in the production process. 5. Horticultural cultivation and container cultivation of horticultural seedlings is a new trend, which to some extent reflects the social demand for seedlings after economic development. Large seedlings cultivated by gardening, pruning or container directly can be applied to all kinds of green space construction and garden landscape, which can not only constitute the landscape, but also embody the garden art. For gardening cultivation, evergreen, thin-leaved, compact and pruning-resistant varieties should be selected, such as Podocarpus, cypress, Japanese red maple, elm, Liquidambar formosana, Ginkgo biloba, Polygonum cuspidatum and boxwood. Container seedlings should be closely integrated with the market, and some street tree species can be selected. Such as Cinnamomum camphora, Ginkgo biloba, Magnolia grandiflora, Hongfeng, Osmanthus fragrans, Magnolia grandiflora, Cedar and so on. 6. The application of fruit tree gardening combined with leisure and sightseeing can meet the needs of landscaping on the one hand, and bring economic benefits to farmland and forest contractors on the other. Grapefruit, Myrica rubra, persimmon, pomegranate, loquat, jujube, torreya grandis and other fine varieties are all characteristic economic forest trees with development prospects.