Point of use of plant growth regulators

1. The dosage should be suitable, and the dosage should not be increased arbitrarily. Plant growth regulators are a class of substances that have similar physiological and biological effects as plant hormones and cannot be used in excess. Generally only a few grams or a few milliliters per acre. Some farmers are always afraid that the amount of use is small, and there is no effect. If you increase the dosage or use the concentration at will, it will not promote the growth of the plant, but will inhibit its growth, and even lead to malformation, dryness, and death of the whole plant.

2. Can not be mixed at will. Many vegetable farmers use the plant growth regulator to save time and often mix it with fertilizers, pesticides, fungicides, etc. Whether plant growth regulators and chemical fertilizers, pesticides and other substances can be mixed, must be carefully read and used after testing, can not be determined, otherwise it will not achieve the role of promoting growth or preservation of flowers and fruits, supplement fertilizer, but will be improperly mixed A phytotoxicity has occurred. For example, the ethephon solution is usually acidic and cannot be mixed with alkaline substances; the amine fresh ester is easily decomposed by alkali and cannot be mixed with alkaline pesticides and fertilizers.

3. The method of use should be appropriate. Some vegetable farmers often do not read the instructions carefully before using the plant growth regulator, but use the plant growth regulator directly with water. Whether it can be directly watered must be seen clearly, because some plant growth regulators can not be directly dissolved in water, if not prepared into the mother liquor and then formulated into the required concentration, the agent is difficult to mix, will affect the use of the effect. Therefore, it must be diluted in strict accordance with the instructions for use.

4. Growth regulators are not a substitute for fertilizer application. Growth regulators are not plant nutrients. They can only regulate growth and cannot replace fertilizers. In the case of insufficient water and fertilizer conditions, spraying too much plant growth regulator is harmful. Therefore, when plant growth is found to be poor, it is first necessary to strengthen the management of fertilization and watering, and on the basis of this, the growth regulator can be used to effectively exert its effects.

5. Plant growth regulators are pesticide products. The product packaging must have a formal "three pesticides" and the labeling zone is yellow.

6. Strictly follow the instructions and take protective measures to prevent the impact on people, livestock and water safety.