How to grow green calyx well
Green calyx is famous in the flower world for its unique emerald green sepals. As a rare species among plum blossoms, its cultivation and management requires specific skills. This article systematically combs the core points of light regulation, temperature and humidity management, and pest control to help you create healthy and lush green calyx plants. Precise temperature control, the core element of green calyx maintenance, green calyx grows best in the range of 16-23℃, and needs to maintain low temperature protection above 10℃ in winter. The use of double-layer insulation shed technology can increase the survival rate of wintering by 30%. Especially in northern areas, it is recommended to use floor heating and humidification systems to maintain the temperature difference between day and night within 5℃. Intelligent light management 4-6 hours of scattered light per day is the gold standard, and use a sunshade net to adjust the light intensity to 3000-5000Lux. In summer, use morning and dusk lighting to avoid strong light at noon from burning leaves. LED plant fill light can extend the flowering period by 15-20 days. The scientific water and fertilizer ratio adopts the watering principle of "seeing dry, seeing wet", and maintains the substrate humidity of 40%-60% in spring and autumn. It is recommended to use special slow-release fertilizer for plum blossoms, combined with foliar spraying of iron chelate fertilizer, and apply top dressing three times in March/June/September every year, with the N-P-K ratio of 1:2:1. How to grow green calyx? Advanced techniques for rate-breeding: Select a 3-year-old mother plant and use an alcohol disinfection tool to divide it. Apply charcoal powder to the incision to prevent bacteria, and use a matrix of perlite: vermiculite =3:1 for transitional culture. Keep the environmental humidity above 70%, and gradually increase the light after 20 days. The modeling pruning system implements the "three cutting methods": pruning after flowering, winter pruning, and disease pruning. Keep the 45-degree oblique branches on the main trunk, and use thinning method to maintain the light transmittance of the crown of more than 60%. Keep 1/3 of the original soil balls when pruning roots and soak them in 800 times carbendazim solution for disinfection. Green calyx disease control plan Biological control technology uses Bacillus subtilis preparation for leaf roll disease, and chlorosis disease uses EDTA chelated iron solution to irrigate roots. Establish a preventive spraying calendar and alternate use of mancozeb and difenoconazole in spring and autumn with an interval of 15-20 days.