Can camellia flowers be fertilized when they bloom?
Camellia has become a garden treasure for its gorgeous flowers, but many flower lovers have misunderstandings about fertilization during flowering maintenance. The correct fertilization strategy is not only related to flower quality, but also affects the overall health of the plant. This article will systematically analyze the key points of camellia maintenance during the flowering period and help you master scientific fertilization methods. Scientific basis for prohibiting fertilization during flowering period of camellia flowers Experimental data show that fertilization during flowering period can shorten flower life by 30%. At this time, plant nutrients are mainly supplied to reproductive growth, and the absorption capacity of the roots is reduced. Fertilization may easily lead to overnutrition and bud falling. It is recommended to complete the main fertilization during the flower bud differentiation period (45 days before flowering). The key point of bud thinning management is to retain 2-3 flower buds per branch, and the principle of "removing the weak and leaving the strong" is followed. Use disinfection scissors when trimming, and perform when the diameter of the flower buds reaches 1 cm, which can increase the diameter of the retained flower by about 20%. The golden rule of fertilization before flowering is the best ratio of nitrogen, phosphorus and potassium is 1:3:2, and potassium dihydrogen phosphate solution (concentration 0.2%) is sprayed on the leaves every 15 days. Ground planted plants can be applied with bone meal (200g/plant) in a circular ditch, combined with decomposed cake fertilizer water (diluted 50 times) to irrigate the roots. The fertilization time window is divided into three stages: budding period (September), expanding period (October), and coloring period (November). The last fertilization should be completed 15 days before the flower buds reveal color to ensure full transformation of nutrients. The key points of comprehensive maintenance strategy during flowering period are to ensure 4 hours of direct light every day, and the light intensity is maintained at 30,000 - 50,000 lux. Use a sunshade net to control strong light to avoid burning petals. Rotate the flowerpot regularly to ensure even light reception. Ventilation and disease prevention management Maintain air circulation (wind speed 0.5-1m/s), and use carbendazim (800 times liquid) to prevent (T-J) diseases in the rainy season. Aphids found were immediately sprayed with matrine (1000 times liquid) once a week for three consecutive times.
Through scientific fertilization and meticulous management, the flowering period of a single camellia can be extended to 15-20 days. It is recommended to replenish all-element compound fertilizers in time after flowering to reserve nutrients for next year's flowering. Different varieties need to adjust the maintenance details. For example, Yunnan Camellia needs to pay more attention to air humidity control.