Plant growth regulators only play a certain auxiliary role, that is to say, they must be used in a critical period on the basis of strengthening comprehensive cultivation techniques and in accordance with the purpose of use. Automobile repair combination tools, household combination tools, telecommunication combination tools, electric combination tools, sleeve combination tools. Multi-combination tool set, household tool box, hardware tool set, 44 pieces, 25 pieces, 16 pieces, custom engineering models (7 pieces of tool set) Combination Tools,Combination Socket Tool,Combination Tool For Hand,Telecommunication Combination Tool Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaous.com
Reasonable use According to the purpose of use, choose an effective plant growth regulator. If the growth of shoot shoots is inhibited and the flower bud differentiation is promoted, a certain concentration of B9 can be used; to ripen the fruit, a certain concentration of ethephon can be used, and a certain concentration of the squash can be controlled by controlling the length of the cotton. In use, it is also necessary to consider the effects of factors such as variety, plant growth status, climatic conditions and methods of use. Therefore, it should be subjected to small-scale tests before it can be widely used.
Mastering the concentration Due to the low concentration of plant growth regulators, and many agents have a dual effect (promoting growth or inhibiting growth), so it is difficult to master the drug technology, and it is necessary to accurately prepare the required drug concentration, according to different time and crops, reasonable use. According to local experiments, when applying plant growth retardant to inhibit growth, multiple doses of multiple administrations are better than large doses, which often maintains inhibition, avoids toxicity and other side effects on plants, and increases plant-to-agents. Absorption.
According to the China Pesticide Network , the appropriate period of time depends on the type of plant growth regulator, the duration of the drug effect and the purpose of use. For example, citrus germination during germination of citrus inhibits flower bud formation; however, gibberellin can be increased in the citrus young fruit stage, which can increase the fruit setting rate.
Mixing and using several plant growth regulators in combination with each other and using them in combination, the effect is more ideal, and it is the development trend of using plant growth regulators in the future. However, it is necessary to understand whether there is synergy between the mixed plant growth regulators. If B9 is mixed with ethephon, it can promote flower bud differentiation.
Mixing with medicine Some plant growth regulators cannot be mixed with certain pesticides . For example, B9 cannot be mixed with copper pesticides; ethephon and gibberellin cannot be mixed with alkaline pesticides. When used separately, at least 5 days or more; when naphthaleneacetic acid is mixed with Bordeaux mixture, the concentration of naphthaleneacetic acid must be increased.