To promote the growth of garden plants in a short period of time, you can consider using the following types of chemicals and fertilizers. However, caution should be exercised when using them and ensure that they are applied correctly according to the instructions to avoid potential negative effects on plants and the environment. ### 1. Compound fertilizers (NPK fertilizers) - **Ingredients**: Nitrogen (N), phosphorus (P), potassium (K) are formulated in different proportions. - **Function**: - **Nitrogen (N)**: Promotes leaf growth and overall green part development of the plant. - **Phosphorus (P)**: Promotes root development and flowering and fruiting. - **Potassium (K)**: Enhances plant disease resistance and stress tolerance. - **Recommended use**: Choose the NPK ratio that suits your plant type and follow the recommended dosage on the package. ### 2. Growth regulators - **Gibberellins**: - **Function**: Promote seed germination, stem elongation and flowering. - **How to use**: Usually diluted and sprayed or watered in the soil. - **Cytokinins**: - **Function**: Promote cell division and differentiation, and delay leaf senescence. - **How to use**: Use after dilution according to the product instructions. ### 3. Trace element fertilizers - **Ingredients**: Trace elements such as iron (Fe), zinc (Zn), manganese (Mn), and copper (Cu). - **Function**: Supplement trace elements required for plant growth and prevent deficiency symptoms such as yellowing of leaves. - **How to use**: It can be applied by foliar spraying or soil fertilization. ### 4. Organic acid fertilizers - **Ingredients**: Such as humic acid, pantothenic acid, etc. - **Function**: Improve soil structure, increase nutrient absorption, and promote healthy root development. - **How to use**: Mix with water and apply according to the instructions. ### Recommendations and precautions for use 1. **Follow instructions**: Before using any chemical, please read the product instructions carefully and apply according to the recommended dosage and method. 2. **Avoid overdose**: Excessive use of fertilizers or growth regulators may cause plant burns, inhibit growth, or pollute the environment. 3. **Timely fertilization**: Fertilize at the right time according to the plant's growth cycle and needs to achieve the best results. 4. **Comprehensive management**: In addition to chemicals, ensuring that plants get adequate sunlight, water and good soil conditions will help promote healthy and rapid growth. 5. **Environmental considerations**: Choose environmentally friendly fertilizers and growth regulators to reduce potential impacts on soil and water sources. ### Other suggestions - **Soil testing**: Conduct a soil test before fertilizing to understand the nutrient status of the soil and supplement the required nutrients in a targeted manner. - **Consult professionals**: If you are not sure which fertilizer or growth regulator is suitable for your plant type, it is recommended to consult a horticultural expert or local agricultural extension department. By using the above chemicals wisely and combining them with good horticultural management practices, you can significantly promote the growth rate of garden plants in a short period of time.