Choose the right control product In theory, all the regulators that can inhibit the growth of corn plants and have a strong dwarfing effect on corn can all be used to control the growth of corn. At present, there are many kinds of products on the market with various names, but the chemical composition is nothing more than the following categories, or a single agent, or its compound preparation. Chlormequat is a gibberellin antagonist whose mechanism of action is to inhibit the biosynthesis of gibberellin in plants. Its physiological function is to control the plant's leggy, promote reproductive growth, shorten the plant internodes, develop the root system, and resist lodging. Ethylene ethephon is a plant growth regulator that promotes ripening. It can effectively dwarf plants and promote the maturation of leaves and fruits. Numerous experimental results show that the application of ethylene in corn can significantly reduce the internode length, the stem base becomes thicker, support roots increase, the plant height decreases significantly, and the yield-resistance effect is significant. At the same time, ethylene is used to control the growth of corn and has the advantages of long application period, wide application range, and so on. Strictly control the application concentration As a plant growth regulator, corn control agent has different physiological effects on plants in different concentration ranges. If the concentration is too low, the effect should not be achieved. If the concentration is too high, serious side effects will occur. Therefore, the selection of the appropriate concentration is the key to the application of controlled-wang products. For example, ethephon as a corn control agent, the best application concentration is 0.03% to 00.5%, the concentration of ethylene in corn 6 to 10 leaves spray treatment, can significantly dwarf corn plants, significant increase in production. If the application concentration exceeds 0.1%, corn ear development will be abnormal, the number of grains per ear will be reduced, and the production will be reduced. It should be noted that, when spraying, do not spray at high pressure, and sweep away to avoid re-spray. Within 6 hours after spraying, it rains, and halve the dose and spray it again. The amount of spray should be determined according to the situation. The year of drought and drought can appropriately reduce the dosage of Wangwang, and the amount of rain can be appropriately increased in the year of rain. Zhejiang Industrial Group Co., Ltd. , https://www.xingyeseafood.com
Triazoles such as paclobutrazol, uniconazole and the like, the mechanism of action of such modulators is to inhibit the biosynthesis of endogenous gibberellin, while increasing the activity of indoleacetic acid oxidase in plants and reducing the level of endogenous auxin. It can significantly reduce the plant's top growth advantage, promote lateral shoot growth, and dwarf plants.
Conditioner! Putting prosperous corns on top of one another
Lodging has always been an important factor constraining the high yield and stable yield of corn, preventing corn lodging, and in addition to strengthening agronomic practices such as cultivation and management, the spraying of chemical regulators has become more and more widely used in corn production.