What kind of fertilizer does peony apply?

Peony flowers use different fertilizers in different periods, apply pre-flowering fertilizer before flowering, apply solid fermentation organic fertilizer after flowering, and apply winter fertilizer at the end of autumn and the beginning of winter. In addition, extra-root topdressing can be carried out properly before and after peony flowering, mainly ternary compound fertilizer. In addition, it should be noted that the peony flowers should not be fertilized with thick fertilizer, and the amount of fertilizer should be appropriate so as not to cause fertilizer damage.

Grafting method of peony:

There are three common grafting methods of peony: embedding method, abdominal grafting method and bud grafting method.

1. In the embedding method, Paeonia lactiflora root is used as rootstock, and the best time for grafting is from late September to early October every year. The rootstock is a sturdy peony root with a diameter of 2-3 cm and a length of 10-15 cm without diseases and insect pests.

two。 Abdominal grafting is a method of high grafting to improve varieties. It uses many branches of inferior tree peonies or 8-10-year-old medicinal tree peonies to be grafted into excellent varieties with different colors. The grafting time is from early July to mid-August. First, select peony plants with good varieties, fat plants, disease-free and insect-free plants, and cut the soil buds from the ground, or the short branches of the year are 5-7 cm long, preferably short branches with 2-3 strong buds as scions. Leave a petiole on the scion. After selecting the scion, make an oblique cut on the back of the lower bud of the scion into a horse ear shape, and then obliquely cut into a wedge on the other side of the Maltese shape, so that both sides of the graft can be angled to the cambium tissue between the xylem and phloem, so that it is easy to survive. Before and after abdominal grafting of peony, the suitable humidity for normal plant growth should be maintained except without irrigation in the rainy season.

3. The budding method was carried out from May to July. It is better to have sunny days when grafting. There are two methods: skin sticking method and bud replacement method. The peeling method is to cut off a rectangular or shield-shaped incision on the annual branches of the rootstock together with the woody part, and then cut off the axillary buds of the scion together with the xylem to cut off a bud of the same size and shape as that on the rootstock. However, the buckle quickly affixed the bud block to the cut of the rootstock and fastened it with a plastic rope. The method of bud replacement is to remove the axillary buds of the grafted part of the rootstock together with the cambium, retain the complete bud embryo on the xylem, then peel off the axillary bud of the reverse scion with the same method, and quickly cover the bud embryo of the rootstock, paying attention to the fact that the two should coincide with each other. finally, fasten it with plastic rope. The grafted plants should be irrigated, loosened and fertilized in time to promote their healing.

In addition, the propagation of peony can also be carried out by means of ramet, cutting and sowing.