Various terms for flower cultivation

1. Water

1. Withholding water: This means watering less or not at all during the growth process in order to limit growth and accumulate nutrients.

2. Water when the soil is dry: Wait until the soil surface is completely dry before watering again, and water thoroughly at one time.

3. Backwatering: This means watering again the next morning after fertilizing the previous day.

4. Waist water: This also refers to half water, which means only half of the water is poured, resulting in wet on the top and dry on the bottom.

5. Better dry than wet: For some plants that prefer drought conditions, the soil needs to be kept dry and not watered too much to cause over-wetting.

2. Soil

1. pH value: This refers to acidity and alkalinity. A low pH value is acidic, and a pH value of 7 is alkaline.

2. Texture: It refers to the different proportions of particles of different coarseness and fineness in the soil, which form different soil qualities.

3. Humus: This is a type of soil organic matter, formed by the decomposition of plants and animals by microorganisms.

3. Lighting

1. Ultraviolet light: This light refers to visible light other than purple light, which cannot pass through ordinary glass. This light can promote seed germination and fruit ripening.

2. Light intensity: refers to the visible light energy that can be received by a unit area.