What are the common young crops?

Green seedlings. Explanation: Flowers and plants used for greening the environment. Application: Greening project. Include trees, shrubs, herbs and grasses.

Greening seedlings generally refer to flowers and trees used for greening construction, which has a wide meaning. Urban construction is inseparable from greening, and greening is inseparable from seedlings. Greening seedlings are an important part of greening projects, and most provinces in China, such as Shandong, Henan, Jiangsu, Hebei, Hunan and Jiangxi, have seedlings.

Green seedlings refer to flowers and plants used for greening the environment, including trees, flowering shrubs, herbs, herbs, aquatic plants and potted plants. Green seedlings are artificially cultivated and have specific morphological characteristics (such as consistent height, consistent diameter and consistent branching points). Usually used for landscaping, road greening, park greening, community greening and other natural environment, living environment and public environment greening. It can improve the quality of air environment, add bright colors, and at the same time relieve people's work and life pressure and feel happy.

Propagation mode: There are many propagation modes of green seedlings, and the common propagation modes can be roughly divided into the following eight categories.

1. Seeding and propagation: use seeds, sow and cultivate new seedlings.

2. Cutting propagation: Cutting propagation of seedlings with branches of seedlings.

3. Burying propagation: horizontally burying the branches of seedlings in the nursery area to cultivate seedlings.

4. Rooting propagation: seedlings are cultivated by inserting or burying the roots of seedlings in the nursery.

5. Roots and tillers propagation: also called root-retaining seedlings, which are seedlings cultivated by growing new strips from underground roots.

6. Grafting propagation: seedlings cultivated by grafting.

7. layering propagation: bury the branches that will not leave the mother in the ground, or wrap them in the air with wet things, and cut them off from the mother after taking root.

8. Tissue culture and propagation: seedlings cultivated in nutrient solution by using tissues or cells on the mother.

Classification of seedlings: According to the characteristics of seedlings, green seedlings can be roughly divided into the following categories: trees and shrubs, transplanted trees, cuttings, stump bonsai, bamboo plants, vines, herbaceous flowers, grass seeds and furs, afforestation seedlings, new excellent fruit seedlings and seed seedlings.

Classification of trees and shrubs: Cortex Fraxini, Sophora japonica, Torch Tree, Toona sinensis, Koelreuteria paniculata, Catalpa bungeana, Fraxinus mandshurica, Tamarix mandshurica, Robinia pseudoacacia, Laurel, Holly, Palm, Cinnamomum camphora, Camptotheca acuminata, Sophora japonica, Elm, Magnolia officinalis, Ginkgo biloba, Myrica rubra, Cinnamomum cassia, Osmanthus fragrans and potted roses.

Classification of transplanted trees: Holly, Osmanthus fragrans, Cinnamomum camphora, Hongfeng, Myrica rubra, Lagerstroemia indica, Pu Shu, Elm, Gleditsia sinensis, Pistacia chinensis, papaya tree, etc.

Classification of cuttings: Boxwood cuttings in Phnom Penh, Ligustrum lucidum cuttings, Lagerstroemia indica cuttings, Osmanthus fragrans cuttings, Photinia rubra cuttings, Mao Dujuan cuttings, Acer truncatum cuttings, Berberis amurensis cuttings, Chinese rose cuttings, etc.

Classification of stump bonsai: Taiwan Podocarpus pile landscape, Podocarpus pile landscape, Hongji pile landscape, Wei Zi pile landscape, etc.

Classification of bamboo plants: Pterocarya stenoptera, Tung Tree, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens, Phyllostachys pubescens and so on.

Classification of lianas: Parthenocissus tricuspidata, Euonymus fortunei, Ivy, Plum Blossom, Rose, Camptotheca grandiflora, Wisteria, etc.

Classification of herbaceous flowers: Pteris multifida, Ophiopogon japonicus, white onion, red onion, violet, cherry blossom, yellow canna, red canna and so on.

Classification of grass species and fur species: American No.2, Tian Quan 1 (roof grass), Sedum sarmentosum, Taiwan Province green, Mani, Bermuda, Sijiqing, Paradise grass, Bermuda, etc.

Classification of afforestation seedlings: Pinus massoniana, Cunninghamia lanceolata, Robinia pseudoacacia, Ailanthus altissima, Salix matsudana, Pinus tabulaeformis and Sophora japonica.

Classification of seedlings: Cinnamomum camphora, Cinnamomum camphora, Osmanthus fragrans, Magnolia grandiflora, Boxwood in Phnom Penh, Gardenia, Gardenia, Ligustrum lucidum, Podocarpus, Osmanthus fragrans, etc.

Classification of aquatic plants: lotus, water lily, calamus, reed, etc.

Greening function: Greening seedlings are most commonly used in urban landscaping, such as urban greening, residential greening, highway greening, barren hills greening, river bank greening and so on. According to modern understanding, gardens are not only used for recreation, but also have the function of protecting and improving the environment. Plants can absorb carbon dioxide, release oxygen and purify the air; It can absorb harmful gases and dust to a certain extent and reduce pollution; It can adjust the temperature and humidity of the air and improve the microclimate; It also has the protection functions of reducing noise, preventing wind and fire. What is particularly important is the psychological and spiritual benefits of gardens. The happiest cities in China are all garden cities. Leisure in the beautiful and quiet garden is helpful to eliminate the tension and fatigue caused by long-term work and restore the spirit and physical strength.

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