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Questions and Answers
What is an important characteristic of the site regarding sunlight exposure for a tree nursery?
What is an important characteristic of the site regarding sunlight exposure for a tree nursery?
- The site should be in constant shade
- The site should be fully exposed to sunlight (correct)
- The site should be exposed to filtered sunlight
- The site should have partial sunlight
Why should a tree nursery have a gentle slope?
Why should a tree nursery have a gentle slope?
- To avoid strong winds
- To enhance drainage and prevent waterlogging (correct)
- To reduce the level of exposure to sunlight
- To make it visually appealing
For maximum sunlight exposure, in which direction should seed beds be aligned?
For maximum sunlight exposure, in which direction should seed beds be aligned?
- East-West (correct)
- South-West
- North-South
- North-East
Which factor is considered when choosing the location of a nursery to avoid transportation issues?
Which factor is considered when choosing the location of a nursery to avoid transportation issues?
Why must a germination shed have a plastic roofing?
Why must a germination shed have a plastic roofing?
What primary purpose does a potting shed serve in a nursery?
What primary purpose does a potting shed serve in a nursery?
How does a transplant shed benefit young seedlings?
How does a transplant shed benefit young seedlings?
What is the purpose of a hardening bed in a nursery?
What is the purpose of a hardening bed in a nursery?
What type of root system should a high-quality seedling have?
What type of root system should a high-quality seedling have?
Why should 20-30% more seedlings be raised than the quantity required?
Why should 20-30% more seedlings be raised than the quantity required?
Which factor is crucial for selecting a nursery site?
Which factor is crucial for selecting a nursery site?
What type of nursery site should be avoided?
What type of nursery site should be avoided?
What is one reason to establish a nursery?
What is one reason to establish a nursery?
Which root condition should result in a seedling being discarded?
Which root condition should result in a seedling being discarded?
How can a spiraled root system be caused during seedling growth?
How can a spiraled root system be caused during seedling growth?
Which practice is essential before outplanting seedlings?
Which practice is essential before outplanting seedlings?
What should nursery operators prioritize when producing seedlings?
What should nursery operators prioritize when producing seedlings?
What does genetic quality of a seedling refer to?
What does genetic quality of a seedling refer to?
Which of the following is considered a characteristic of high-quality seedlings?
Which of the following is considered a characteristic of high-quality seedlings?
Which factor is NOT mentioned as an aspect that can be improved by good practice within the nursery?
Which factor is NOT mentioned as an aspect that can be improved by good practice within the nursery?
Which is NOT an advantage of high-quality seedlings?
Which is NOT an advantage of high-quality seedlings?
What kind of root system is characteristic of high-quality seedlings?
What kind of root system is characteristic of high-quality seedlings?
Which statement correctly describes the physical quality of seedlings?
Which statement correctly describes the physical quality of seedlings?
Which target is explicitly mentioned for nursery management concerning seedling production?
Which target is explicitly mentioned for nursery management concerning seedling production?
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Study Notes
Nursery Site Selection
- A nursery should have full exposure to sunlight and a gentle slope of 5%.
- It should not be exposed to strong winds and should have seed beds and transplant beds aligned in the East-West direction to maximize sunlight exposure.
Factors to Consider in Selecting a Nursery Site
- Accessibility: the nursery should be centrally located to avoid long-distance transportation of seedlings and should be accessible by foot or by vehicle.
- Water supply: the nursery should be near a water source.
- Size of the area: the nursery should be large enough to accommodate necessary structures.
Structures Needed in a Small-Scale Nursery
- Germination shed: protects seeds from too much sunlight, damage from raindrops, stray animals, and insects, and has a plastic roofing to allow some sunlight to penetrate.
- Potting shed: has a roof to prevent potting medium from getting waterlogged, a dry floor, and is free of weeds and flat for pots to stand after filling.
- Transplant shed: has a cover to protect young transplants from intense sunlight and allows rain to pass through, with sufficient transparency to allow some sunlight to reach seedlings.
- Hardening bed: prepares seedlings for adverse conditions of the planting site by exposing them to full sunlight, reducing watering and fertilizer application, and root pruning.
High-Quality Seedling Characteristics
- Healthy root system with many fibrous roots and free from deformities.
- Sturdy stem with a relatively large root collar diameter.
- Balanced root and shoot mass.
- Free from diseases and has dark green leaves.
- Grown from seeds or wildlings collected from genetically and phenotypically superior mother trees or trees from seed production areas or seed orchards.
Importance of High-Quality Seedlings
- Low mortality rate.
- Low maintenance cost.
- Short rotation period.
- High timber recovery.
- High timber quality.
- 20-30% of seedlings raised in a nursery may exhibit poor physical quality and should be discarded.
Nursery Management
- Focus on raising high-quality seedlings rather than the number of seedlings produced.
- Seedling quality refers to both genetic and physical characteristics.
- Genetic quality can be improved by selecting superior mother trees, while physical quality can be improved through good nursery practices.
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