Chlormequat is a widely used plant growth regulator . It can enter the body of plants through leaves, young shoots, buds, roots and seeds. The mechanism of action is to inhibit the biosynthesis of gibberellic acid in plants. Its main physiological function is to prevent plants from growing and promoting reproductive growth.
It shortens the internodes of plants, grows short, strong and thick, has compact plant type, developed root system, resists lodging, deepens leaf color and increases chlorophyll content, which can improve the drought resistance, cold resistance and salt and alkali resistance of some crops. On the basis of comprehensive agricultural measures, as long as the correct and rational use of chlormequat, the yield increase effect on cotton, wheat, corn, sorghum, rice and fruit trees, vegetables and other crops is significant. The product has 10%, 50% water, 80% soluble powder.
(1) It is used to inhibit the growth of cotton, and it can be applied to the bud flower period. 50% chlormequat medicinal agent bud period with 25000 times liquid, flowering period with 12000 times liquid is appropriate, for density, fertilizer, water, and excessive growth of cotton, the use concentration can be appropriately increased, after the topping using stiletto, can be used Spray 8500~12000 times liquid. According to the size of cotton plants, the amount of liquid used per acre should be around 60~80 kg. Because cotton is very sensitive to chlormequat, the concentration of the liquid can not be too high, the liquid can not be excessive, and the spraying speed should be fast and uniform. Otherwise, the cotton bead leaves will shrink and the fruit branches will be too short, resulting in reduced production.
(2) Used to prevent wheat from lodging. For the vigorous growth of wheat fields, before the winter wheat is re-greened or the spring wheat begins to joint, spray with 50% water agent 250~500 times liquid 75~100 kg. The wheat is cultivated with strong seedlings, soaked in 100% to 150 times with 50% water agent for 6 hours, and then removed, dried and sowed. Corn and sorghum can be dwarfed and prevented from falling and increasing production by 3 to 5 days before jointing and spraying 50% of water to 300~500 times. The sweet potato is a long field, 1 month after planting, 50% water spray 200 times liquid 50 kg, can control the length of the potato. Rice is sprayed with 50% water solution 300 times liquid at the end of the period, which can prevent falling and increase production.
(3) Vegetable tomato In the 3~4 true leaf stage, the soil surface is sprayed with 50% water agent 2000~5000 times liquid, and sprayed once before planting seedlings to make the seedlings short and strong and flowering early. Before flowering, spraying the whole plant with 500~1000 times can increase the fruit setting rate and increase the yield. Pepper sprays 50% water at the flowering stage
500~1000 times liquid can make the plant strong and early results. Cucumbers, pumpkins, melons and other melon vegetables, with 50% water agent 1000~2000 times liquid watering the roots, can control the length of the melons and reduce the melons. When the cucumber is sprayed with 5000~10000 times in 14~15 leaves, it can also increase the rate of sitting,
Increase production. Before the flowering, the potato sprayed the leaves with 50% water agent 200~300 times, which can improve the drought resistance, cold, salt and alkali ability, and increase the yield.
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