Common name in Chinese: clopidomide, clopidobenzurea

English common name: Forchlorfenuron

Other names: pirazolone, urokine, KT-30, CPPU, 4PU-30, and StuyYou

Chemical name: N - (2-chloro-4-pyridyl) - N-phenylurea, 1 - (2-chloro-4-pyridine) - 3-phenylurea

CAS No.: 68157-60-8

Molecular weight: 247.68

Physical and chemical properties: The pure product is white flaky crystal, with a relative molecular weight of 247.7. It is insoluble in water, with a solubility of 0.11g/L (20 ℃). It is easily soluble in ethanol, methanol, dimethyl sulfoxide, acetone and other organic solutions, with a melting point of about 170 ℃. It is stable under heat, ultraviolet light, acid and alkali conditions, and is resistant to storage. It has a faint pyridine smell.

Toxicity: According to the classification standard of pesticide toxicity in China, clopidomide is a low-toxicity plant growth regulator. It is safe for humans and animals. The acute oral dose of raw powder white rats is 4918mg/kg, and that of quail is more than 2250mg/kg; Rabbit acute percutaneous>2000mg/kg, rainbow trout LC50 (96h) is 9.2mg/kg, and water louse LC50 (48h) is 8.0mg/kg.

Category: plant growth promoter

Functional characteristics: Clopidourea is a new plant growth regulator, with high activity of phenylurea-like mitotic substances, which can affect the development of plant buds, accelerate cell mitosis, promote the horizontal and vertical growth of organs, promote cell growth and differentiation, promote fruit expansion, prevent fruit and flower shedding, and increase yield. It can delay the senescence of leaves, keep green for a long time, strengthen the synthesis of chlorophyll, improve photosynthesis, and promote the deepening and greening of leaf color. Breaking the top advantage, promoting the lateral bud germination, can penetrate the differentiation of buds, promote the formation of lateral branches, increase the number of branches, increase the number of flowers, and improve the fertility of pollen, thus increasing the number of fruits and increasing the yield. Improve crop quality and commerciality. Induce parthenocarpy, stimulate ovary expansion, prevent flower and fruit falling, promote protein synthesis, improve sugar content, etc.

Practical technology of clopidomide KT-30

Melon and cucumber: on the day of female flower opening or 2-3 days before flowering, 0.5-1kg of water per 10mg at 10-16 ℃, 1-1.5kg of water per 10mg at 17-25 ℃, and 1.5-2kg of water per 10g at 26-30 ℃ to form a uniform solution. Soak the melon embryo or use a mini spray to evenly spray the spray melon embryo. After application, the melon rate reaches 98% - 100%, and the young melon grows fast, is big, has good quality, and comes into the market early.

Watermelon: on the day or one day before and after the female flower opens, spray the melon embryo with a spray or coat the fruit stalk with 20-33 times of 0.1% soluble liquid agent for one circle, which can prevent the difficult fruit setting and melon melting phenomenon caused by overgrowth of watermelon and no insect pollination, improve the fruit setting rate and yield, and increase the sugar content. This method is also applicable to muskmelon.

Pepper, tomato, eggplant and zucchini: soak the young fruit with 5-15mg/kg solution after the flowering period, which can improve the fruit setting rate, expand the fruit and increase the yield.

Grape: Soaking the young fruit with 0.1% soluble liquid 10-100 times liquid 10-15 days after flowering can improve the fruit setting rate, increase the weight of single fruit, expand the fruit, increase the weight, and increase the content of soluble solids. Soaking or spraying the ear with 3-5 mg/kg solution at 14-18 days before blooming and 10-15 days after blooming can make the fruit expand and increase yield by more than 80%.

Jufeng, Teng Nian, etc.: every 10mL of water is 1-1.5 kg, and the ear is soaked (or evenly sprayed) once about 15 days after blooming, which significantly increases the number of seedless fruit (20-40%) and seedless fruit (seedless white, Venus seedless, etc.) by 1-3 times, with compact fruit shape and good marketability; Varieties (such as Jufeng) that are sensitive to the weather conditions at flowering stage and have serious flower and fruit drop have a very significant effect on promoting fruit setting and greatly improving the yield.

Tobacco: increase new buds, accelerate the formation of buds, and promote the growth function of stems, leaves, roots and fruits, so as to make the leaves fat and increase the yield.

Apple, citrus, peach, pear, plum, litchi and longan: spray the young fruit with 5-20 mg/kg soaked in the stem 10 days after blooming, which can promote coloring, improve fruit setting rate, increase fruit size, and increase yield.

Navel orange: before physiological fruit fall, that is, 25-30 days after flowering, spray 0.1% soluble solution 50-200 times of solution on the crown and coat the dense plate of fruit stem twice, which can significantly improve the fruit setting rate, prevent fruit fall and accelerate fruit growth.

Kiwifruit: soak the young fruit with 5-10mg/kg solution 20-25 days after flowering, spray twice with 10ppm on 21 days after flowering, which can expand the fruit by 30-100%, increase the sugar content by 1.4-2.7%, increase the Vc content by 16.4-24.6%, and increase the weight of single fruit by 50%. It can expand the fruit and increase the weight of single fruit without affecting the fruit quality.

Loquat: Soak the young fruit with 0.1% soluble solution 100 times of the solution at the diameter of 1 cm, and then soak the fruit again after 1 month. Timely medication after the fruit is frozen can promote the fruit to expand.

Honey orange: use 0.5mg/kg of liquid medicine once in the blooming period, and spray the crown once at the end of fruit setting and fruit falling respectively, which can improve the fruit setting rate.

Hawthorn: Spraying 10mg/kg of liquid medicine at the flowering stage can improve the fruit setting rate, fruit expansion and single fruit weight.

Li: Spraying 5mg/kg solution on the 10th day after flowering can increase the single fruit weight and yield.

Cherry: spray 5mg/kg liquid medicine at full flowering stage to improve fruit setting rate, expand fruit and increase yield.

Peanut: Spraying 1mg/kg at pod setting stage can increase chlorophyll, pod number and fruit number. At the podding stage of Guangdong spring peanut Yueyou 116, spraying the peanut leaves with 1 mg/L chlorpyrimide solution can increase the thickness of the leaves, chlorophyll content and light and speed, and increase the podding rate, full fruit rate and 100-kernel weight, so as to increase the yield per plant by about 12.6%.

Potato: Spraying with 100mg/kg solution 70 days after planting can significantly improve the yield.

Rice: Spraying 15mg/kg solution 10 days after heading can preserve green, promote reproductive growth, develop root system and increase yield.

Strawberry: after picking, spray or soak the fruit 100 times with 0.1% soluble liquid, dry and store, which can extend the storage period.

Cucumber: In order to solve the problem of "melting melon" under the condition of insufficient low temperature and light, and poor flowering and fertilization, apply 20 times of 0.1% soluble liquid to the handle of the melon one day or the same day before flowering, which can improve the fruit setting rate, promote the fruit, make the fruit size uniform, increase the yield and improve the quality.

Cherry radish: spraying 20 times of 0.1% soluble liquid at the 6-leaf stage can shorten the growth period and increase the yield.

Bulky white radish: spray 5mg/kg solution on the leaf surface at the beginning of fleshy root expansion, once every 4 days, a total of 4 times can inhibit the pith and bolting of spring greenhouse radish, and improve the yield.

Soybean: spraying 0.1% soluble liquid agent 10-20 times (50-100 mg/L) at the beginning of flowering can improve photosynthesis, increase protein content and increase yield. Spraying 1mg/kg liquid medicine at pod setting stage can promote reproductive growth and increase yield.

Sunflower: spraying 0.1% soluble liquid 20 times at flowering can make the seeds plump and increase the grain weight and yield.

Barley and wheat: spraying the flag leaf with 67 times of 0.1% soluble liquid can increase the yield. Spraying 1mg/kg solution at 10 days after heading and flowering stage can promote reproductive growth and increase yield.

matters needing attention

1 Chlorpyramide is used for fruit setting, mainly for flower and fruit processing. It should be used with caution on melon and watermelon, especially when the concentration is too high, there will be side effects.

2 If the concentration of grape is too high, it is easy to reduce the content of soluble solids, increase the acidity, slow down the coloring and delay the ripening.

3. When used on old, weak, diseased plants or weak branches without thinning fruit, the expansion of fruit grains is not obvious; In order to ensure the nutrients needed for the expansion of the fruit grain, the fruit should be properly thinned and the amount of fruit should not be too much.

4 The effect of clopidomide mixed with auxin or gibberellin is better than that of single use, but it must be carried out under the guidance of professional personnel or under the premise of trial and demonstration. Do not use it arbitrarily.

5 In case of rain within 12 hours after treatment, re-spray is required.

Manufacturer of clopidomide: Anyang Quanfeng Biotechnology Co., Ltd

Main dosage forms: 99% clopidomide technical, 0.1% clopidomide soluble liquid

Packaging: plastic bag, cardboard bucket

Specification: 1 kg/bag, 25 bags/barrel, 200 kg/barrel