How to write the hydroponic garlic seedling observation record sheet: observation date, garlic seedling growth, water quality, maintenance measures, and other precautions.

1. Observation date: Record the specific date when you started observing the hydroponic garlic seedlings for subsequent recording and organization.

2. The growth of garlic seedlings: According to the growth of garlic seedlings you observe, record the height, color, shape and other characteristics of garlic seedlings. For example, you can record the germination time of garlic seedlings, color changes of garlic leaves, length and width of garlic leaves, etc. This information will help you understand the growth and changing trends of garlic seedlings.

3. Water quality: During the hydroponics process, it is also very important to observe changes in water quality. You can record the color, clarity, turbidity and other characteristics of the water so that you can change the water or take other maintenance measures in time.

4. Maintenance measures: Record what maintenance measures you have taken to promote the growth of garlic seedlings, such as changing water, fertilizing, increasing light, etc. This information will help you understand the impact of maintenance methods on the growth of garlic seedlings and provide a reference for subsequent experiments.

5. Other precautions: If you find abnormal conditions in garlic seedlings, such as pests and diseases, slow growth, etc., you can record them and take corresponding measures.

The method of growing garlic seedlings in water is as follows:

Prepare several plump and intact garlics. Peel off the outer skin. Be careful not to break the garlic flesh when peeling, otherwise it will rot easily. Arrange the peeled garlic neatly on a plate and add an appropriate amount of water. The water should cover more than half of the garlic head, which makes it easier to absorb nutrients.

Put the container in a place with sufficient light, but avoid direct sunlight to avoid affecting the germination of garlic. You can stay out of the sun for three consecutive days before taking root and sprouting. After taking root, you must bask in the sun in time, and rotate the plate frequently to make the garlic receive even light, so that the garlic leaves that grow can be green and straight. In about a week, the garlic will grow long garlic leaves.