Author: Master

Efficacy and characteristics:
Promote fruit ripening, used for ripening bananas and other fruits, so that they can be put on the market earlier. Promote the shedding of plant organs, such as promoting the shedding of leaves before cotton harvest to facilitate picking. Induce the formation of female flowers, which is used in the cultivation of melon crops such as cucumbers.

Precautions:
Ethephon is toxic to the human body, so wear protective equipment when using it. When used for ripening, the appropriate use time and concentration should be determined according to the degree of maturity of the fruit and the characteristics of the variety, otherwise it may lead to a decline in fruit quality, such as poor taste and poor storage resistance. Ethephon will decompose rapidly when it encounters alkaline substances and cannot be mixed with alkaline pesticides or fertilizers.

Effects and characteristics:
Inhibit the vegetative growth of plants, dwarf the plants, and control the plant shape in flower planting.Promote the differentiation of flower buds in plants, increase the number of flowers, and increase the yield of fruit trees.Enhance the resistance of plants to lodging, such as reducing lodging in wheat growth.

Precautions:
Paclobutrazol has a long-lasting effect. The soil residue after use may affect the subsequent crops, so pay attention to the reasonable arrangement of the order of planting crops. Strictly control the amount of use. Excessive use will cause serious stunting of plant growth, too short plants, and wrinkled leaves.Generally used in the vigorous growth period of plants, avoid using it in the weak growth period of plants to aggravate the adverse effects.

Parachlorophenoxyacetic acid, also known as anti-drop agent, is a phenolic plant growth regulator.

Efficacy and characteristics:

It is mainly used to prevent flowers and fruits from falling. It is used in the cultivation of tomatoes and other solanaceous vegetables to increase the fruit setting rate. It promotes fruit development and makes the fruits uniform in size and regular in shape.

Precautions:

Anti-drop agent is mainly used to prevent flowers and fruits from falling. When using it, pay attention to the exact time of flowering and fruiting. Too early or too late may not achieve the expected effect. Improper concentration control may lead to deformed fruits. Different fruit tree varieties have different suitable concentration ranges. Pay attention to uniformity and thoroughness when spraying, especially on flowers and young fruits.

Effects and characteristics:
Promote plant growth, improve seed vitality, make seeds germinate quickly and seedlings strong. Enhance plant resistance, including cold resistance, drought resistance, salt and alkali resistance, etc. For example, the growth state of crops planted in saline-alkali land is improved after using brassinolide. Improve crop quality and increase the content of sugar and vitamins in fruits

Precautions:
Pay attention to the use temperature. The effect is better when used within the appropriate temperature range (usually 15-30℃). Too low or too high temperature may affect absorption and effect. Although brassinolide is relatively safe, excessive use may also cause abnormal plant growth. Use it according to the instructions. When brassinolide is mixed with some foliar fertilizers or pesticides, pay attention to their compatibility. Some ingredients may react with each other.

Effective characteristics:
Promote plant rooting and is used for cutting propagation. For example, dipping rose cuttings in naphthaleneacetic acid solution can increase the rooting rate. Prevent fruit drop and reduce physiological fruit drop during the growth of fruit trees such as apples. It can thin out flowers and fruits and adjust the load of fruit trees. Its products are mostly used for rooting.

Precautions:
When naphthaleneacetic acid is used for rooting, the concentration is critical. The concentration required for rooting of different plants varies greatly and needs to be accurately grasped. Take protective measures during operation because it is irritating to human skin and eyes. Naphthaleneacetic acid cannot be mixed with other regulators at will, and some combinations may produce antagonistic effects.

Effective features:

Promote plant carbon and nitrogen metabolism, regulate the pH value in plants, and improve the utilization rate of fertilizers by plants. Enhance the disease and insect resistance of plants, such as reducing the damage of pests and diseases in some vegetable plantings. Increase the number of branches of plants, make the plants more luxuriant, promote flower bud differentiation and flowering and fruiting.

Precautions:

DA-6 should be sprayed evenly when used to avoid excessive local concentration affecting plant growth. Store in a cool and dry place to prevent it from deteriorating. Its concentration may need to be adjusted at different stages of plant growth. Generally, a lower concentration is used to promote growth in the early stage of growth, and the concentration is appropriately increased in the later stage to regulate metabolism.

Effective features:
It can quickly penetrate into the plant body, promote the flow of cell protoplasm, and accelerate the rooting speed of plants. Enhance plant photosynthesis, make leaves dark green, and increase crop yields. Improve plant resistance, such as helping plants grow better in drought and low temperature environments.

Precautions:
Control the dosage when using. Excessive use may cause plant damage, such as yellowing and withering of leaves. Avoid using it during high temperature and strong light periods, as it may affect its effect or cause damage to plants. When sodium nitrophenolate is mixed with certain pesticides or fertilizers, a small-scale test is required first to ensure that no chemical reaction will occur to reduce the efficacy of the drug.

Efficacy and characteristics:
Promote cell elongation and division, make plants grow taller, and elongate stem nodes on crops (such as rice). Break seed dormancy. Some flower seeds can germinate early after being treated with gibberellins. Promote fruit growth, induce parthenocarpy, and help the formation of seedless grapes. Of course, gibberellins can be used on many crops, and the methods of use are different at different times. Follow the official account for further learning.

Precautions:

Use strictly according to the recommended concentration. Too high a concentration may cause the plant to grow too long and the stems to be thin and weak. Pay attention to the use period. Different plants have different sensitivities to gibberellins at different growth stages. For example, using it during the flowering period of fruit trees can increase the fruit setting rate, but if it is used near maturity, it may affect the quality of the fruit. Gibberellins are easily decomposed when encountering alkali and cannot be mixed with alkaline substances. In addition, gibberellins are insoluble in water. A small amount of alcohol or high-proof liquor can be used for dilution. Avoid using hot water.

Common English name: Bacillus amyloliquefaciens, belonging to Gram-positive bacteria. Similar to Bacillus subtilis.

Bacillus amyloliquefaciens can inhibit the growth and infection of pathogenic bacteria by competing and secreting antibacterial substances.

Common name in English: Bacillus subtilis, a Gram-positive bacterium.

Its bactericidal mechanism mainly includes:

1) After Bacillus subtilis is sprayed on the plant surface, its live spores absorb and utilize nutrients and water, reproduce and occupy the leaf surface, and compete with pathogenic bacteria for nutrients and living space;

2) secrete antibacterial active substances, which have bacteriolytic effects and biological oxygen-snatching effects, and can effectively repel, inhibit and kill pathogens, achieving the effect of preventing and controlling diseases.