Okay, I need to create a professional wiki-style document about "관상용 식물" (ornamental plants) under the categories of Agriculture -> Cultivation Methods -> Seedling Selection. Let me start by understanding the requirements.

First, the structure: H1 title, overview section, several sections with H2 and H3, and references if needed. The content needs to be accurate, objective, detailed, easy to read, and use technical terms with explanations. Also, markdown formatting with proper headings, lists, tables, code blocks where necessary, and at least 800 characters.

Starting with the title: "관상용 식물의 묘목 선택" (Seedling Selection for Ornamental Plants). That's straightforward.

For the overview section, I should introduce what ornamental plants are, their importance in agriculture, and why seedling selection is crucial. Maybe mention aesthetics, environmental benefits, etc.

Next, sections under H2. Let me think about possible subsections. Maybe "묘목 선택의 중요성" (Importance of Seedling Selection), "묘목 선정 기준" (Criteria for Selecting Seedlings), "묘목 선택 시 고려 사항" (Considerations When Choosing Seedlings), and "관상용 식물 묘목 선택 예시" (Examples of Ornamental Plant Seedling Selection). Each of these can have H3 sections.

In the importance section, I should explain why selecting good seedlings is vital for plant health, growth, and aesthetics. Maybe mention disease resistance, adaptability to environment, etc.

For criteria, list factors like plant species, soil type, climate, light requirements, pest resistance. Each of these can be an H3 with explanations.

Considerations could include checking for healthy roots, absence of pests/diseases, proper size, and source reliability. Maybe a table here comparing different factors.

Examples might include specific plants like roses, hydrangeas, succulents, each with their selection criteria. Use bullet points or tables here.

Need to ensure technical terms are explained. For example, "광합성" (photosynthesis) can be briefly defined if used. Also, check for accuracy in the information provided.

Make sure the document is over 800 characters. Let me count: each section should have enough detail. Maybe add a references section with sources like agricultural guidelines or research papers.

Avoid markdown formatting as per instructions? Wait, no, the user wants markdown format. So use H1, H2, H3, lists, tables, etc.

Check for clarity and flow. Each section should logically follow the previous one. Use simple language but maintain professionalism.

Possible challenges: Ensuring all required sections are covered without being too verbose. Need to balance depth with conciseness. Also, making sure examples are relevant and specific enough.

Let me start drafting each part step by step, ensuring that each requirement is met.