How far apart to plant roses
The selection of rose varieties should be determined based on the purpose of cultivation and the natural climate environment of the cultivation area. Generally speaking, rose varieties used for planting and cultivation have three flower types: small, medium and large, such as those used for rose ointment and oil. For extraction or picking of rose buds and rose flowers, the first choice is Fenghua rose, Grasse rose and double red rose; if it is mainly for ornamental or greening, choose double red rose, white rose, single red rose, thorn fruit rose and purple rose. Branches of roses are preferred. In the natural climate conditions for the growth and development of rose varieties, sufficient light and moderate temperature should be ensured to comply with the habit of roses that prefer light but not high temperatures. In the temperature range, 15~25℃ is the best. Rose cultivation should ensure that the light intensity is no less than 25000lx and no more than 50000lx.
Choose a place suitable for roses to grow
Mountainous areas should make full use of soil slopes, which not only increases economic benefits, but also stabilizes soil and prevents soil erosion. A dedicated rose garden should be established on plain land for large-scale management. However, regardless of mountainous areas or plains, avoid planting on heavy and waterlogged soil.
Soil treatment for roses
Soil disinfection is carried out before planting, mainly steam disinfection. If unconditional, chloropicrin fumigation can be used. After chloropicrin fumigation, it should be deeply plowed multiple times to avoid phytotoxicity affecting the development of the plant root system. Then apply 20 cm thick farmyard manure and plow it. The plain land is transformed into a high border with a border width of 200 cm and a border height of 15-20 cm.
Planting roses
The planting row spacing is 2-2.5 meters, and the plant-row spacing is 1-1.5 meters. In plain land, the plant-row spacing can be appropriately increased. Dig the planting hole (60 cm long, 60 cm wide and 60 cm deep), put in the seedlings, fill it with solid soil and water it.
Fertilize roses properly
Fertilization can be done in 2 times. Once in late autumn, combined with deep plowing, apply 3000-3300 kilograms of farmyard manure per acre; another time after flowering, combined with soil loosening, apply 5-25 kilograms of diammonium phosphate or other compound fertilizers per acre.
Pruning of roses
Roses have strong germination ability. If they are not pruned in time, the branches often grow thin and die due to the canopy of the bushes. Pruning should be carried out according to the age of the plant, growth status, fertilizer, water and management conditions. The principle of thinning is mainly used, and short cutting is supplemented, so that the old branches of the plant are not old, the branches are not dense, and the trees are ventilated and light-transmissive.
Old branches that are more than 5 years old should be thinned out in time to support the growth of new branches. For roses that are weak in growth and have basically lost the ability to bloom, they can be pruned again to promote the growth of new branches.
Rose pest control
The main diseases of roses are rust, powdery mildew, and brown spot. To prevent rust, diseased buds can be removed and buried deeply. Spraying fentanin, trophide or chlorothalonil before the onset of rust, powdery mildew and brown spot and every half a month during the onset period has a good effect on preventing the spread of disease infection. The main pests of roses include scarabs, bag moths, spider mites, aphids, scale insects, beetles, etc.
Scarabs and bag moths mainly harm the young shoots and leaves of roses. During the occurrence period, phoxim can be sprayed to kill them; red spiders, aphids, and scale insects mainly suck rose sap, causing growth weakness. Dimethoate and monocrotophos can be sprayed Other systemic insecticides should be used for control; beetles are destructive pests, and their adult insects should be killed and the nectar plants that absorb nutrients should be removed to inhibit their occurrence.
Harvest in a timely manner
The harvest time of roses is different, and the yield and quality vary greatly. Usually rose buds should be harvested before they open, that is, they are best harvested when the longitudinal diameter of the buds is three times the calyx. If the flowers are opened too early, the yield will be reduced, and if the flowers have opened too late, the quality will be affected.
Choose strong and full flower buds to pick during the concentrated flowering period, and pick the petals of other thin flower buds after they are fully opened. Flowers that bloom sporadically at other times should also be harvested after they are fully open.
Finally, rose cultivation can exert its value in many aspects under the modern background. When cultivating roses, one should be familiar with the basic cultivation points and techniques to increase the yield rate of rose cultivation. This article briefly analyzes rose cultivation technology from the aspects of soil, seedlings, planting, management, etc., hoping to provide technical guidance and reference for rose cultivation farmers.
Original article author：Fragrant Road Full，If reprinted, please indicate the source.：https://www.theroadfull.com/article/2345.html
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