Nursery of Chinese words

nursery

Li Chunhe nursery was formerly known as spring garden nursery. Based on the characteristics of foundation plant cultivation and propagation, this paper systematically introduces the establishment of urban spring garden nursery, seed production of spring garden plants, seedling propagation, emergence, chemical weeding, container seedling, protected field seedling, tissue culture and other new seedling breeding technologies, including ginkgo tree cultivation and greening, common spring garden seedling breeding technologies And the management of spring garden nursery. Ginkgo biloba trees, the focus is prominent.

Chinese words

[explanation] the modern Chinese dictionary explains it as: a garden for cultivating young trees or seedlings of some crops.

Terms of forestry

Basic concepts

A base for producing seedlings. seedlings are the material basis of afforestation, fruit tree production and landscaping. Nurseries can be divided into forest nurseries, garden nurseries, fruit tree nurseries, etc. according to the purpose of cultivating seedlings; comprehensive nurseries refer to those with diversified business contents; experimental nurseries refer to those who serve scientific experiments. In addition, it can be divided into fixed nursery and temporary nursery.

Category introduction

Common nurseries are generally divided into two types according to the use time, namely fixed nurseries and temporary nurseries. The fixed nursery has long operation time, large area, many kinds of seedlings, intensive management, high management level, strong technical force, can make full use of investment and advanced production technology, and is convenient for mechanized operation. However, it is inconvenient to transport seedlings due to the distance of afforestation. temporary nursery is a nursery set up temporarily to complete the afforestation task in a certain area. After the afforestation is completed, the nursery will be cancelled immediately. Therefore, the area is generally small, the species of seedlings are relatively simple, close to the forestland, and seedlings can be raised nearby. The cost of seedlings is low, weeds and pests are few, and the seedlings have strong adaptability to the adverse conditions of the forestation land, and the survival rate of afforestation is high. But there are disadvantageous aspects, such as scattered management, unchanged traffic, drought relief and no water source.

Site selection requirements

Strive to be close to the nursery land, convenient transportation, sufficient labor source and power supply, especially good natural environment. The soil with good drainage should be loam soil or loam soil with good water source. The nursery site should be away from the air outlet, the place with serious flood and frost damage, and the place where diseases and pests spread. The principle of nursery regionalization is to ensure the quality of seedlings and facilitate management and operation. The nursery should be square or rectangular.

Soil disinfection

The spring is warm, everything is revived, and the earth is full of vitality. It is a good time to raise seedlings. Before sowing or cutting, farmers should disinfect the soil in the nursery in time, so as to kill bacteria and improve the survival rate of seedlings. the nursery land should have the characteristics of flat terrain, loose soil, convenient irrigation and drainage. The best choice is sandy loam soil. In addition, soil disinfection should be carried out before sowing or cutting to eliminate soil pathogens and ensure the safe growth of flower seedlings. The commonly used disinfection methods are: 1. Disinfection with pentachloronitrobenzene; 4 kg of 75% pentachloronitrobenzene and 5 kg of mancozeb per square meter of nursery land; mixing with 12 kg of fine soil after mixing. When sowing, it has special effect to control seedling Damping off, anthracnose, damping off and Sclerotinia sclerotiorum. Second, formalin disinfection every square meter nursery with formalin 50 ml, 10 kg of water evenly sprayed on the surface, and then covered with straw bags or plastic film, stuffy 10 days or so, remove the cover, so that the gas volatilization, 2 days after sowing or cutting. The control effect of Rhizoctonia solani, brown spot, angular leaf spot and anthracnose is very good. 5 kg of Bordeaux solution (the ratio of copper sulfate, lime and water is 1:1:100) and 10 kg of jiasailisan are sprayed on the soil. After the soil is slightly dry, the seedlings can be sown or cutted. It can effectively control black spot, spot, gray mold, rust, brown spot, anthracnose, etc. 4. Carbendazim disinfection carbendazim can control a variety of fungal diseases, and has good control effect on diseases caused by ascomycetes and deuteromyces. Soil disinfection with 50% carbendazim WP, 1.5kg/m2, can control root rot, stem rot, leaf blight, gray spot and so on. It can also be spread on the seedbed in the ratio of 1 ∶ 20, which can effectively control the diseases of seedling stage. 5. Disinfection with 50% water-soluble carbendazim 350 times and 3 kg diluent per square meter of nursery soil can control various diseases of flowers, such as black spot, downy mildew, powdery mildew, Rhizoctonia solani and bulbs.