Use of paclobutrazol

Paclobutrazol is a kind of hormone of plant growth regulator in agricultural commodities. It is indeed said in the commodity introduction that it has the effects of controlling growth, rooting, promoting tillering, sturdy and productive, and so on. Raise orchids all want to produce more new seedlings, out of this idea, many beginners want to try. However, the main function of paclobutrazol is to dwarf plants. if the concentration is too high, it will make the plant tiller too much and harmful and useless.

Paclobutrazol is a 15% wettable powder with low toxicity. Its dilution ratio is 1 ∶ 7500 or 1 ∶ 10000. In other words, 1 gram paclobutrazol is dissolved in 7.5 to 10 kilograms of water. The liquid is too strong when it is less than 7500 times. If you spray a few more times with 10000 times liquid, it will also have an over-concentrated effect. If you use it too thick, the plant will grow too short.

Paclobutrazol is generally used for flowers and trees that are easy to grow branches, such as chrysanthemum, cockscomb, a bunch of red flowers to dwarf, some erect camellias can also promote their dwarfing. Orchids can also be used, especially those with broad leaves. If paclobutrazol is used in the new leaves of Cymbidium, it can make the long-leaf Cymbidium short, strong and wide, like a dwarf. Most of the dwarf orchids sold by illegal orchids in the city use this method.

The orchids that have been dwarfed by paclobutrazol have been stereotyped, such as planting them in the original pot for another year, the orchids planted are still relatively small, because paclobutrazol has low toxicity and poisons the plant material during spraying. In order to make the orchid grow as it is, we must turn the basin, wash the orchid seedlings in water, replant them with new plants, and spray 1000 times of urea plus potassium dihydrogen phosphate on the leaves of bluegrass when they produce new leaves. at the same time, thin nitrogen, phosphorus and potassium compound fertilizer was used to irrigate the seedlings to promote them to grow normal new seedlings. (Zhejiang-Gu Jun)