Geoscience Reference
In-Depth Information
then a conclusion whether it is suitable to be established as a garden can be made.
Therefore, the establishment of a nursery garden is a work of great importance.
2.1
Types of Nursery Gardens
The general name is nursery garden but they can be classified according to the
quantity and usage of the seedlings to be planted in the garden. Nursery gardens can
be used for production of (i) sand-fixation seedlings, (ii) tree seedlings for timber
(lumber), (iii) windbreak seedlings, (iv) greening seedlings, (v) orchard seedlings,
(vi) special economic seedlings and (vii) seedlings for trials. Based on the service
lives of different nursery gardens, the gardens can be divided into two types: regular
ones and temporary ones.
2.1.1
Land Preparation
Land preparation is an important technical step during the whole process of seedling
production. Its purpose is to change the physical situation of soils, to increase soil
fertility so as to meet the demands for water, temperature, heat and ventilation to
foster seedling growth. There are four steps for land preparation:
1. Plowing (shallow or deep),
2. Break up clods,
3. Soil compacting,
4. Harrowing,
5. Inter-cultivation.
2.1.2
Fertilizer Application
The purpose of applying fertilizer is to improve soil fertility, change the physical
characteristics of soil, (with soil ameliorants such as gypsum) and promote the
microbiological activities and the decomposition of organic matter. The types
of fertilizers are: Organic fertilizer, Chemical fertilizer and inoculants such as
rhizobia and mycorrhiza. The quantity, method and time of fertilizer application
are important for nursery garden.
2.1.3
Soil Fumigation
Its purpose is to kill virus and pest and diseases in the soil. Treatments involve
heating soil to a high temperature. Application of pharmaceutical products are
generally adopted. The pharmaceutical product treatment is usually adopted to raise
seedlings in desert areas.
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