Chlormequat is an antagonist of gibberellin. Its main function is to inhibit the biosynthesis of gibberellin, inhibit cell elongation without affecting cell division, inhibit stem and leaf growth without affecting the development of sexual organs, thereby achieving control and long-term resistance. Lodging, the purpose of increasing production. How can chlormequat be used to increase production? What should be paid attention to during the use of chlormequat?
Characteristics of chlormequat:
Chlormequat is a low-toxic plant growth regulator that can enter the plant through leaves, shoots, shoots, roots, and seeds to inhibit the biosynthesis of gibberellin in plants.
Its main physiological function is to control the growth of plants, promote reproductive growth, shorten the internodes of plants, be short, strong, thick, developed roots, anti-backup, dark green leaves, increased chlorophyll content, enhanced photosynthesis, improved fruit set rate, improved Quality, increase production; at the same time, it can also improve the resistance of some crops to cold, drought, salt and alkali, and resistance to diseases and insects.
Chlormequat for crops:
Can be widely used in cotton, wheat, corn, rice, sorghum, peanuts, soybeans, tomatoes, cucumbers, potatoes, sugar cane, apples, pears, peaches, grapes, citrus and other plants.
Chlormequat use technology:
Scientific and rational use can fully exert the effects of drugs, solve the contradiction between vegetative growth and reproductive growth in plants, and achieve high yield and high efficiency.
Application skills of chlormequat on various crops!
Wheat; spraying chlormequat at the beginning of the tillering at the end of the tillering can effectively inhibit the elongation of 1-3 knots in the lower part of the stem, which is extremely beneficial to prevent wheat lodging and increase the rate of ear formation. If 1000-2000mg/L of liquid is sprayed during jointing, it will also affect the normal development of the ear while inhibiting the elongation of the internode, resulting in reduced yield.
Rice: At the beginning of rice jointing, 50-100g water plus 50kg of stems and leaves are sprayed per acre to make the plants short, prevent lodging and increase yield.
Corn: Spraying 30-50 kg/mu of liquid on the 3-5d leaf surface before jointing with 1000-3000mg/L liquid medicine can shorten the corn internode, reduce the ear position, resist lodging, short and wide leaves, photosynthesis Enhancement, the reduction of baldness, the increase of 1000-grain weight, and finally the increase in production.
Sorghum: Soaking seeds with 25-40mg/L liquid for 12 days, the liquid medicine: the seed is 1:0.8, and drying after sowing, can make the plants short and strong, and increase the yield significantly. About 500 days after sowing, use 500-2000mg/L of liquid medicine, spray 50kg of liquid per acre to make the plant dwarf, the stem is thick, the leaves are dark green, the leaves are thickened, the lodging resistance, the ear weight, and the 1000-grain weight increase. Increase production.
Barley: When 0.2% liquid is used to start stretching in the first section of barley base, 50 kg of liquid per acre can reduce the height of the plant by about 10 cm, and the thickness of the stem wall increases, increasing the yield by about 10%.
Sugarcane: Spraying the whole plant with 1000-2500mg/L liquid solution 42 days before harvest, it can dwarf the whole plant and increase the sugar content.
Cotton: The first time in the first flowering period of cotton, the second time in the full flowering period with 30-50mL / L liquid sprayed the whole plant, can play the role of dwarf, topping and increase production.
Soybean: Sowing in the shade of the beans after the wrinkles, can play the role of dwarfing, promoting branching, increasing the number of pods. The initial flowering period uses 100-200mg/L liquid medicine, spray 50kg per acre, which can be dwarfed, promote branching and increase the number of pods.
At the flowering stage, spray the leaves with 1000-2500mg/L liquid medicine, dwarf the plants, the stems are thick and strong, the lodging is prevented, the branches are increased, the number of pods and the number of seeds are increased, and the yield is increased. In the full bloom period, 1000-2500mg/L medicinal liquid spray leaves, 50 kg per lance, can restrain the length of the stalk, make the stalks thick, reduce the granules, increase the grain weight, increase the yield by 13.6%, but the concentration should not exceed 2500mg/L.
Sesame: Spray 30mg/L liquid in the true leaf stage twice (interval 7 days), which can reduce the plant height, reduce the initial sputum area, the foot dwarf stem is thick, the lodging resistance is short, the knot is short and dense, and the number of mites and grains are increased. Heavy, increase production by about 15%. Spraying the whole plant with 60-100mg/L liquid before the final flower can increase the chlorophyll content and photosynthesis, and promote nitrogen metabolism and protein increase.
Cucumber: When 3-4 true leaves are opened, the leaves are sprayed with 100-500 mg/L of liquid medicine, which can dwarf the plants. When 14-15 leaves are opened, spraying with 50-100mg/L liquid can promote fruit setting and increase yield.
Melon: Spray seedlings with 100-500mg/L liquid, which can strengthen seedlings, control length, drought resistance, cold resistance and increase yield. Zucchini is sprayed with 100-500mg/L liquid, which can control long, drought-resistant, cold-resistant and increase production.
Tomato: Spray the leaf surface with 500-1000mg/L liquid at the initial flowering stage, which can control the growth, promote reproductive growth, increase the fruit setting rate, and improve the yield and quality.
Capsicum: For peppers with a long trend, spraying with 20-25mg/L liquid at the initial flowering stage can inhibit the growth of stems and leaves, make the plants dwarf and thick, and the leaves are dark green, which enhances the ability of cold resistance and drought resistance. The flowering period is sprayed with chlormequat 100-125mg/L, which can increase the yield, increase the yield of pepper, and improve the resistance to bacterial wilt.
Wenzhou mandarin orange: sprayed with 2000-4000mg/L liquid medicine or 500-1000mg/L liquid medicine during the occurrence of summer shoots, can inhibit summer shoots, shorten branches, increase fruit set rate by more than 6%, fruit color orange red, rich Glossy, bright and pleasing. Increase the value of goods and increase production by 10% - 40%.
Apples and pears: After harvesting, spraying with l000-3000mg/L liquid can prevent the growth of autumn shoots, promote the formation of flower buds, increase the fruit set in the following year, and improve the resistance.
Note on the use of chlormequat:
The chlormequat is strictly controlled in the use concentration. If the concentration is too high, side effects will occur; the water and fertilizer conditions are good, the group has a long tendency to use, and the soil condition is poor, and the growth is not suitable. As a fruit-fruiting agent, although the fruit setting rate is increased, the sugar content of the fruit is lowered, and mixing with boric acid can improve the fruit quality. This medicine cannot be mixed with alkaline pesticides. Rainfall should be re-sprayed within 4 hours after spraying.
This article URL: The efficacy and role of chlormequat, whether the use of chlormequat can increase production
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