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What are the precautions for using pear fruit swelling agent?
Pear fruit swelling agent is a plant growth regulator developed and utilized in recent years. Its effect is to promote fruit cell enlargement, especially when used on early and mid-season pears, where the swelling effect is obvious. However, improper use of pear fruit swelling agent will not only fail to achieve the ideal effect, but also cause side effects. Therefore, for pear trees using swelling agent, water and fertilizer must be kept up, especially full-element chemical fertilizers, to ensure sufficient nutrients to meet the needs of fruit growth and development, so as to achieve the ideal effect. In addition, harvest at the right time
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Scientific methods for using the grape ripening agent ethephon
1. Pay attention to watering for varieties prone to fruit cracking, keeping the soil from drying out before the fruit expands and grows, so that the skin will not age; then when the rainy season comes and the soil has too much moisture, fruit cracking will be reduced; 2. When conditions permit, it is recommended to bag the grapes; bagged grapes have fresh, tender skin with strong elasticity, and even if rain accelerates expansion, they are less likely to crack...
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Which chemical agents give good control results against pineapple heart rot?
This disease mainly affects seedlings, but can also affect mature plants. In affected plants, the leaves are still greenish at first, with only a slightly darker, lusterless leaf color, and the central leaves are yellowish white. After that, the leaf color gradually turns yellow or reddish yellow, the leaf tips dry up, and a water-soaked rotting surface develops at the leaf bases. The most important feature of this disease is that the central leaves can be pulled out easily....
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What drug is used to ripen sweet persimmons? Recommended common ripening agents
What drug is used to ripen sweet persimmons? Please give an introduction. The most commonly used agent for ripening sweet persimmons is ethephon. It is best to buy small packages; most large packages locally are used for defoliating old leaves in the late stage of cotton, and unscrupulous manufacturers generally add sulfuric acid to them. Its use is spraying before boxing, and the dosage is based on the instructions and determined by referring to the length of the journey, temperature...
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