Manufacturer of Factory Price of Cycocel CCC Plant Growth Regulator 98%Tc 720g/L
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Paclobutrazol (PBZ) is a Plant Growth Regulator and Fungicide.It is a known antagonist of the plant hormone gibberellin.It is inhibiting gibberellin biosynthesis, reducing internodial growth to give stouter stems, increasing root growth, causing early fruitset and increasing seedset in plants such as tomato and pepper. PBZ is used by arborists to reduce shoot growth and has been shown to have additional positive effects on trees and shrubs.Among those are improved resistance to drought stress, darker green leaves, higher resistance against fungi and bacteria, and enhanced development of roots. Cambial growth, as well as shoot growth, has been shown to be reduced in some tree species.It has No Toxicity Against Mammals.
Usage
1. Cultivating strong seedlings in rice: The best medication period for rice is the one leaf, one heart period, which is 5-7 days after sowing. The appropriate dosage for use is 15% paclobutrazol wettable powder, with 3 kilograms per hectare and 1500 kilograms of water added.
Prevention of rice lodging: During the rice jointing stage (30 days before heading), use 1.8 kilograms of 15% paclobutrazol wettable powder per hectare and 900 kilograms of water.
2. Cultivate strong seedlings of rapeseed during the three leaf stage, using 600-1200 grams of 15% paclobutrazol wettable powder per hectare and 900 kilograms of water.
3. To prevent soybeans from growing excessively during the initial flowering period, use 600-1200 grams of 15% paclobutrazol wettable powder per hectare and add 900 kilograms of water.
4. Wheat growth control and seed dressing with suitable depth of paclobutrazol have a strong seedling, increased tillering, reduced height, and increased yield effect on wheat.
Attentions
1. Paclobutrazol is a strong growth inhibitor with a half-life of 0.5-1.0 years in soil under normal conditions, and a long residual effect period. After spraying in the field or vegetable seedling stage, it often affects the growth of subsequent crops.
2. Strictly control the dosage of drug. Although the higher the concentration of drug, the stronger the effect of length control is, but the growth also decreases. If the growth is slow after excessive control, and the effect of length control cannot be achieved at a low dosage, an appropriate amount of spray should be evenly applied.
3. The control of length and tillering decreases with the increase of sowing amount, and the sowing amount of hybrid late rice does not exceed 450 kilograms/hectare. Using tillers to replace seedlings is based on sparse sowing. Avoid flooding and excessive application of nitrogen fertilizer after application.
4. The growth promoting effect of paclobutrazol, gibberellin, and indoleacetic acid has a blocking antagonistic effect. If the dosage is too high and the seedlings are inhibited excessively, nitrogen fertilizer or gibberellin can be added to rescue them.
5. The dwarfing effect of paclobutrazol on different varieties of rice and wheat varies. When applying it, it is necessary to flexibly increase or decrease the dosage appropriately, and the soil medicine method should not be used.
Application method
Commonly used methods in flower production include soaking (bulbs), soil application, leaf spraying and drying. Among them, soaking, soil application and leaf spraying have the best effect, and the effect is long-lasting and stable. There are two ways to apply paclobutrazol to soil. One is to plant foliage and flower plants on the ground. Dig a circular trench about 5 cm deep around the crown, spread it evenly into the trench and then irrigate it in time. The second is to apply paclobutrazol to indoor potted flowers in the pot. Drill holes in the soil and water immediately after application. Leaf spraying is mostly carried out in the early stages of growth. The spraying time and concentration of paclobutrazol are different for different flowers, soil quality, and nutritional management levels. The method of spraying paclobutrazol is the same as that of general fertilizer spraying, but attention should be paid to uniform application of the fertilizer on the growing points.
Application dosage and concentration
It varies depending on factors such as variety, growth, age, soil quality, etc. The soil application rate is generally 0.25 grams per square meter. When spraying the leaves, the concentration of paclobutrazol is 800 to 1500 ppm. Soak the roots (bulbs) for 5 to 8 hours. The dosage and concentration of paclobutrazol for woody flowers can be slightly higher, while the dosage of paclobutrazol for herbaceous flowers should be lower. Use paclobutrazol with caution on orchids.
Application time
Different paclobutrazol application methods have different paclobutrazol application times. Soil application is usually done in spring before flower buds sprout (spring flowers); leaf spray is usually used when the new shoots grow about 10 to 15 centimeters that year. Deciduous flowers and trees can be treated with paclobutrazol some time in advance to ensure timely effectiveness.
Frequency of application
Since paclobutrazol has a long-lasting effect, it is generally applied once and the effect can last for 3 to 5 years, so the frequency of application should be strictly controlled. Soil application should be done once every 3 years at most, and foliar spray should be done once a year. If used in consecutive years, the concentration should be reduced year by year. If growth is found to be extremely weak, use should be stopped. If necessary, gibberellin can be sprayed to help restore growth. 5. Paclobutrazol efficacy sluggish period
