The latest measures to control the florescence of tree peony

Generally speaking, the flower bud differentiation period of tree peony begins from June to the end of September, and the double and semi-double species continue to differentiate after September. When you want to promote flower treatment, you should first select appropriate varieties, such as "Zhao Fan", "Erqiao", "cinnabar base", "like pink lotus", "Jinpao Hong", "Luoyang Red" and so on. At the same time, choose 4-5-year-old plants with full buds and strong growth. The management of water and fertilizer should be strengthened, foliar topdressing should be carried out during the period of flower bud differentiation, and strong branches and buds should be selected.

It can enter the cold cellar on July 15 and keep the temperature at about 0: 2 ℃ to promote its dormancy ahead of time. Half a month later, put cool and semi-shaded place out of the cellar, and spray water around the plant and flowerpot to restore plant growth, gradually increase light after bud germination, apply thin cake fertilizer water every 7-10 days, or foliar fertilizer with 0.1% potassium dihydrogen phosphate, keep the temperature at about 22% after September 25, and bloom at the end of September.

It can also cut off all the leaves at the beginning of August, leave the petiole 2-3 cm long, and apply rotten cake fertilizer to promote the germination of new buds. When the flower buds germinate, gibberellin can be used to promote the bud, help the stem, stand buds, the method is to use skimmed cotton wrapped around the bud, and then every morning from 8 am to 10:00, with a brush coated with 700 million mg / kg gibberellin solution 3 MUE 4 times, can promote flower bud germination neatly. After spreading the leaves, the mixture of 0.1% urea and 0.2% potassium dihydrogen phosphate was sprayed for 2 times, and it could blossom in late September. If the leaves are picked in batches from late July to early September, the flowers will bloom from early September to mid-November.

Let the peony blossom in New Year's Day (or Spring Festival) can choose 4-5-year-old fine varieties, in New Year's Day (Spring Festival) 45 560 days on the pot, after moving indoor gradually heating up, during the day control in 15-20 ~ ℃, night control in 10: 15 ℃, and often spray water to the foliage and the ground, Tianjin Dermatology Hospital to increase relative humidity. After leaf spreading, light should be gradually increased, thin fertilizer should be applied every 7 to 10 days, and 0.2% potassium dihydrogen phosphate solution should be sprayed on the leaf surface. In this way, after 40 to 45 days, up to 60 days (depending on different varieties), you can show up in New Year's Day (or Spring Festival). After flowering, the flowering period can be prolonged by properly lowering the temperature and keeping it at 10-15 ℃.

Let the peony blossom on May Day can move the dormant peony stored in the cold room into the room at the end of March, gradually raise the temperature, and appropriate watering, spraying and fertilization, so the temperature is higher, and it can blossom in about one month.