(2) Preparation of Plant Growth Regulator
Before using plant growth regulators, it is generally necessary to prepare a certain concentration of liquid medicine with water according to the instructions for use, or choose a suitable method of use according to the nature and purpose of use of the drugs. Some drugs can be used directly without preparation, such as 49.65% chlorpheniramine hot fog agent can be used directly by atomization. Most plant growth regulators are usually diluted before use. According to the recommended dosage and water consumption on the label, first fill a small amount of clean water into the prepared clean container, then slowly pour the quantitative drugs into the clean water, then add the specified water consumption, and mix them to use. 1. When preparing plant growth regulators, the following preparation process should be followed: (1) Wear protective equipment. Wear protective clothing, gloves, masks, hats, etc. Do not expose any part of the skin during preparation; You can't touch drugs directly with your hands.
(2) Choose a suitable preparation site. Prepare plant growth regulators outdoors with good ventilation, away from grain, fire, water and animals. You can't take a bucket of potions directly into the river or down the well to get water.
(3) Accurately calculate the applied concentration. Plant growth regulator is a kind of pesticide that can play a regulatory role in a small amount, and the dosage must be accurately weighed. Generally speaking, the packaging specifications of plant growth regulators are relatively small, and drugs should be accurately weighed according to the method on the label. If a bottle or a package of drugs is prepared at a time according to the label requirements, after all the drugs in the package are added with clear water, the package should be washed with a small amount of clear water for 2-3 times to ensure the accurate concentration of the liquid medicine.
(4) Dilute the drug. According to the amount of water added on the label, add water to dilute the liquid medicine or powder.
(5) Clean the weighing instrument. After the preparation of the liquid medicine, clean up the instruments used, and properly dispose of the washed waste liquid, away from the residence, water sources and other crops.
(6) Handling packaging or residual chemicals. If there is drug residue in the original package, it should be stored safely. Dispose of empty medicine bottles and bags properly after using small packages.
2. In the process of preparing plant growth regulators, we should pay attention to the following matters: (1) Prepare drugs in strict accordance with the labels and instructions for use, and use them as needed, and use up the drugs prepared on the same day.
(2) Be careful when dispensing medicine. When preparing powder, it should be in a windless place or in an upwind place to prevent dust from flying as much as possible. Don't fill the sprayer with liquid medicine outside the calibration line, so as not to spill it.
(3) Don't use sewage for pharmacy. There are many impurities in sewage, which will not only block the sprayer, but also affect the efficacy.
(4) Don't use well water for pharmacy. It is best to choose neutral river water for dispensing. Well water contains more minerals, especially calcium and magnesium ions, which are easy to precipitate after being mixed with liquid medicine, reducing the effect of drugs.
(5) Don't increase water consumption at will. The change of spraying concentration of plant growth regulators often brings the opposite effect. Therefore, the amount of water added must be accurate, and the amount of water can neither be increased nor decreased at will.
(6) Rational collocation of plant growth regulators. The mixture of two or more plant growth regulators may have synergistic, superimposed or antagonistic effects. When the mixing effect is not clear, it is forbidden to mix the two plant growth regulators at will, especially when the pH values of the two are quite different, and it is also forbidden to mix liquid fertilizer and other pesticides blindly without experimental confirmation.
(7) Pay attention to the weather changes during use. If the temperature is too high or too low, it is not suitable to prepare and spray plant growth regulators, so as not to affect the efficacy and aggravate the phytotoxicity.
(8) Don't eat, drink or smoke when dispensing medicine. Don't pollute the potion on you.
(9) If the plant growth regulator accidentally splashes on the skin and clothes, it should be washed with soapy water as soon as possible. If you accidentally splash into your eyes, rinse with plenty of water immediately.
(10) If you take it by mistake or have symptoms of poisoning during operation, you should immediately send it to the hospital for treatment.