Key points for rose maintenance
As one of the top ten famous flowers in China, rose is popular among horticulturists because of its four-year-old flowering characteristics. However, in order to achieve the effect of basin explosion, we need to master scientific maintenance methods. From light regulation to soil improvement, this paper systematically analyzes the core elements that make roses grow healthily. Rose growth environment control light intensity periodic management roses require 5-6 hours of direct light per day, and full sunshine maintenance is recommended in spring and autumn. In summer, use a double-layered sunshade net (light blocking rate of 50%) to avoid burning petals with strong light at noon. In winter, it is necessary to cooperate with a fill light to extend the light to 8 hours to effectively prevent falling leaves. The temperature gradient adjustment scheme uses the day and night temperature difference method to improve the quality of flowering: it remains at 22-25℃ during the day and drops to 15℃ at night. Wrap the flowerpot with insulation film in winter and move it indoors to the sun when the temperature is below-5℃. In high temperature seasons, the air humidity is maintained above 60% through a spray cooling system. Rose nutrition management technology accurately proportioned water and fertilizer. The "3+2" irrigation method is implemented during the May growing period: penetrating water three times a week and watering with nutrient solution two times a week. It is recommended to use water-soluble fertilizer with N-P-K=15-30-15, diluted 2000 times every 10 days. Additional potassium dihydrogen phosphate (concentration of 0.2%) was applied during the budding period to promote flower bud differentiation. The scientific pruning system adopts a three-level pruning method: the first level pruning removes weak branches (retaining 3-5 main branches), the second level pruning shortens long branches (retaining 4-6 bud points), and the third level pruning removes residual flowers (the incision is tilted 45°). Apply Yushang cream immediately after pruning, and spray carbendazim to prevent diseases. The best substrate ratio for customized soil formula for rose substrate improvement strategy is: 40% leus soil +25% perlite +20% coconut bran +15% bone meal. Supplement ferrous sulfate (1g/L) quarterly to maintain pH 5.5-6.5. It is recommended to change the soil in early spring every year for potted plants. The ground planting requires loosening the soil to a depth of 20cm and mixing with wormcast for improvement.
Through systematic environmental control and precise maintenance, roses can achieve an ornamental effect of blooming for more than 200 days a year. It is recommended to combine a plant growth monitor to adjust the maintenance plan in real time. Regularly observe the leaf condition (the ideal leaf color is dark green with waxy luster) and deal with problems such as yellow leaves and blind buds in time to create a rose landscape with flowers.