Breeding method 1: Suitable soil and suitable planting soil are the basic conditions for the good growth of roses. Without good soil, there is no good future. The late growth is poor and the management is difficult. It is almost impossible for roses to have a good root system. The most suitable soil for planting roses is humus-rich humus-rich humus-rich humus-rich humus-rich humus-rich humus-rich humus-rich humus-rich humus-rich soil contains a large number of beneficial bacteria and microorganisms, which can acidify the soil and improve the structure, and is very suitable for planting roses. In addition to selecting high-quality humus soil for planting roses, humus soil has fine structure and strong water retention; In the process of daily maintenance, it is easy to have too high water content for a long time, resulting in water accumulation in basin soil. Therefore, it is necessary to add a proper amount of drainage substances, such as coarse river sand, perlite, vermiculite and other granular substances, which is more conducive to enhancing the drainage of basin soil. Generally, it is more appropriate to add one third of the total soil.
Cultivation method 2: light and temperature roses belong to positive plants, and sufficient light will make roses more vivid and fragrant. Roses need 4 hours or more light every day. Long-term lack of sunlight will cause the leaves of roses to turn yellow. In winter, the outdoor temperature is too low, so we should move the roses back indoors for cultivation, but put them by the window to ensure that the roses can bask in the sun. Roses like to grow in a warm environment, and the most suitable temperature is 12-28 degrees Celsius, not lower than -5 degrees Celsius, otherwise it will cause low-temperature freezing damage.
Breeding method 3: watering is generally warmer in spring and autumn, which is also the growing period of roses. Only enough water can make them grow better, so as long as you see the soil surface dry, you should water it once in time. However, in too hot summer and cold winter, roses will go into dormancy with the change of temperature, and their growth rate will slow down or even stop. At this time, its demand for water will naturally be greatly reduced, so we have to wait until the soil surface is dry for 2-3 days before watering the rose, so that the rose will absorb water better.
Cultivation method 4: apply fertilizer during the growth period of four-season small roses, spray diammonium phosphate solution 1 time on the leaves every week, apply decomposed farm manure before germination in spring, and apply human and animal manure or chemical fertilizer after germination. When budding, calcium superphosphate or calcium dihydrogen phosphate aqueous solution should be used, and nitrogen fertilizer should not be applied at flowering stage to prevent falling flowers. When the temperature is low in winter, you can bury the fertilizer in the pit around the roots of crops and then water it.
Cultivation method 5: Pruning and pest control should be properly pruned after flowering. If it is not necessary to propagate fruits and preserve seeds, withered flowers can be cut off. Summer dormancy can be properly trimmed and remolded, and unnecessary growth can also be avoided. Common diseases and insect pests of roses are rust, brown spot, branch blight, aphid, red spider, longicorn and so on, which should be prevented in time. For diseases caused by bacteria, chlorothalonil solution should be sprayed in advance to prevent them.