How to calculate the rational use of growth regulators?

How to calculate the rational use of growth regulators? There are many kinds of plant growth regulators and their effects are different. Auxins, such as indolebutyric acid, α-naphthylacetic acid and 2mai 4m D, are mainly used for cutting seedlings to promote rooting, prevent flowers and fruits from falling, and promote fruiting. Gibberellins can promote cell elongation, prevent detachment formation, break dormancy of organs such as tubers and bulbs, and can also induce flowering, increase fruit setting and parthenocarpy in some plants. Cytokinins mainly promote cell division, induce bud differentiation, inhibit organ senescence, increase fruit setting and improve fruit quality. The main role of ethephon in production is to promote fruit ripening, promote flowering and female flower differentiation, promote shedding, promote the secretion of secondary substances, and so on. Ethylene inhibitors reduce fruit shedding, inhibit fruit ripening, and prolong the fresh-keeping life of fruits and cut flowers. Dwarf, paclobutrazol, uniconazole and Bijiu are plant growth retarders, which can shorten the internodes of plants, compact plant shape and prevent lodging. Brassinolide can promote crop growth, increase seed germination rate, increase crop yield and improve crop stress resistance. To use growth regulators, we should first make it clear that they are not nutrients and cannot replace fertilization. It only regulates plant growth and fruit by affecting hormones and physiological processes in plants, which is different from trace element fertilizers. When plants are in poor nutritional condition, it is useless to take hormones. On the other hand, the application of growth regulators is only an auxiliary measure, which can only play a regulatory role on the basis of reasonable cultivation management. If the lodging of wheat can be prevented, the seeds can be soaked with chlorhexidine, but reasonable close planting and balanced fertilization are still the main measures. Secondly, good things should not be "misused or abused". Different growth regulators have special effects and specific use time, and can not arbitrarily increase the concentration, dosage and frequency of use. Its strict technical requirements, improper use will also lead to a reduction in production and quality. Click to view more regulator use technology click to view more pesticide use technology