How to raise jasmine flowers in spring
As the temperature warms up, jasmine flowers enter their golden period of growth. As a typical thermophilic plant, spring maintenance directly affects the growth and flowering quality of the plant throughout the year. This article systematically analyzes the key points of spring conservation of jasmine flowers from five dimensions to help flower friends master key skills. 1. Selection of pot replacement timing for soil substrate management It is recommended to carry out pot replacement operation in mid-April, when the average daily temperature is stable above 18℃. Before changing the basin, water should be stopped for 3 days to dry the basin soil, and 1/3 of the protective soil should be retained. The new soil should be prepared according to the ratio of legular soil: vermiculite: perlite =5:3:2, and 3cm ceramite should be laid on the bottom to enhance drainage. Old soil treatment techniques When removing hardened old soil, keep the fibrous roots intact, and prune the aging root system by 30%. After changing pots, pour thoroughly with root-fixing water (rooting powder can be added), and place it in a ventilated and scattered light place to slow down the seedlings for 7 days. 2. Precise control of water and fertilizer and control of watering frequency. From March to April, the principle of "seeing dry, seeing wet" is adopted, and watering is carried out when 2cm of topsoil is dry. It is recommended to use a long-spout pot to slowly inject water along the edge of the pot to avoid flushing the roots. The difference between water temperature and room temperature should not exceed 5 ° C. It is recommended to dry and remove chlorine in northern areas. The nutrient supply plan will not apply fertilizer within 30 days after the pot is changed. Compound fertilizer with N-P-K=10-15-10 is used after the new buds germinate, and applied once every 15 days. Plants without changing pots were sprayed with 0.1% potassium dihydrogen phosphate on the leaves every week, combined with root application of decomposed soybean cake water (1:50 dilution). 3. Environmental optimization measures Light management Gradually increase the lighting duration after Qingming Festival, and ensure 5 hours of direct light every day. In the northern region, pay attention to preventing cold in late spring, and move indoors when the temperature is below 10℃. It is recommended to use a thermohygrometer for monitoring and maintain the air humidity of about 60%. Key points for pruning and shaping: Conduct sizing and pruning in late March, retain 3-5 secondary branches of the main branch, and remove crossing branches and sick branches. Reserve 2-3 bud points for long branches, and apply plant ash to the incision to prevent infection.
Through the three-in-one maintenance strategy of scientific soil allocation, precise water and fertilizer, and environmental control, as well as regular pest prevention (it is recommended to spray 800 times carbendazim solution once a month), the safety of jasmine flowers can be ensured in spring and laid a solid foundation for summer blooms. Remember to keep a maintenance log after each operation and continue to optimize the management plan.