How to deal with cold-resistant rose flowers?

Cold-tolerant rose flower planting method:

First, the cold-to-cold planting environment

The cold-tolerant season is adaptable, and the environment is sunny, leeward, and airy. The temperature suitable for growth is 8-25 ° C, the optimum humidity for growth is 75-80%, and the temperature is -35 ° C for winter. The cold-tolerant rose is suitable for planting greening or potting. It is fertile and loose, with good drainage and aeration. It is rich in humus loam or light clay.

Second, cold-resistant rose cultivation techniques

1. Site preparation: planting in the depression or greening area, first flatten the land that has been turned over, apply the base fertilizer, and mainly use the decomposed farmyard manure, and appropriately add a small amount of diammonium. The row spacing of plants planted in the viewing season is generally 40 cm and 50 cm. In order to facilitate daily management, it is advisable to plant two actions per raft, 40 cm wide and 3,400 plants per mu.

2, pruning and disinfection of seedlings: the best season is to dig with the planting, before planting, the seedlings are trimmed, cut off diseased branches, dry branches, weak branches and damaged roots and excessive roots. The pruned rose is soaked with ABT No. 3 rooting powder for 0.5-2 hours, and then sprayed 1-2 times with chlorothalonil or carbendazim WP 600 times.

3, planting: planting plants into the hole, light lifting, soil, irrigation, so that the soil is fully wet, and finally fill the soil inside the hole.

Third, the daily management of cold-resistant season

1. Irrigation: The root soil of the rose should be kept moist. The number and time of watering should be controlled according to the climatic conditions. The principle of not pouring or pouring, pouring and pouring is adhered to. The best time to water is to water in the morning or in the afternoon near dusk.

2. Fertilization: In the case of appropriate fertilization in the rose season, the flowering is beautiful and large, and it can also enhance the ability of the plant to resist pests and diseases and to withstand cold. Before the germination of the early spring rose, it is advisable to apply an inorganic fertilizer to promote early growth. In cold regions, one and a half months before the autumn frost, spraying with a concentration of 1.5-3ppm potassium dihydrogen phosphate for foliar spray can promote the filling of the rose and improve the cold resistance. During the growing season, the fertilizer is applied once a month to achieve a thin fertilizer and more fertility. Apply compound fertilizer 0.15-0.1 kg per square meter.

3. Pruning: The growth period of the rose season is from the spring germination to the early winter dormancy. Before and after each flowering period, it should be properly pruned. For the newly planted young plants, when the small flower buds are formed for the first time in the spring, the buds should be picked up in time to promote their accumulation. Raise and distribute the branches. After each flower, I will cut off the residual flowers. In the growing period, in order to prevent the plants from sprouting in inappropriate places, the buds of other parts of the branches should be wiped off in time. For the strong rose, in the process of trimming, in addition to cutting off the dead branches, diseased branches, and wound branches, according to the shape of the plant, some thin, weak, disorderly and overcrowded side branches should be cut off to make the whole The plants form an inverted umbrella shape. The winter shear is mainly made of strong shears, and is cut at 3-6 cm from the base, leaving only about 10 buds at the base of the main branch.