Cultivation method of crabapple flowers in autumn
As the temperature gradually cools down, many crabapple lovers have found that the plants have yellowing leaves and flower buds fall off. As a traditional and famous flower in China, the autumn management of crabapple directly affects the wintering status and the quality of flowering in the coming year. This article will systematically sort out practical skills for maintaining autumn crabapple from environmental control to breeding operations. The golden rule of water management adopts the principle of "seeing dry and wet" irrigation to carry out deep water replenishment when the surface soil is white. Combine it with an air humidifier to maintain 50% environmental humidity, and pay special attention to reducing the frequency of watering after white dew. After heavy rain, it is necessary to dump the accumulated water in the basin in time to prevent suffocation and rot of the roots. During the light intensity stage, a sunshade net is used to filter 30% of the strong light from the beginning of autumn to the autumnal equinox, and the shade is removed after cold dew. Indoor maintenance is recommended to ensure 4 hours of direct light every day, and regularly rotate the flower pot to allow the plants to receive even light. Move into the southbound window sill before frost falls in the northern region. Air circulation guarantee measures keep the opening angle of day and night ventilation windows>15°, and install micro circulation fans to promote air flow. Pay attention to avoid direct-blowing areas of the air conditioner and wipe the leaves with tobacco water every month to prevent the breeding of red spiders. Practical guidelines for efficient cuttage propagation The best time to choose is based on a stable daytime temperature of 20℃. It is advisable to choose around white dew in the north, and continue until frost in the south. Collect semi-lignified branches in the morning and keep the top 2 leaves with 1/3 cut off. The cutting treatment technology uses a 45° oblique cut method to increase the rooting area, and the distance between the cut and the stem node is better. Soak in a solution of rooting powder and carbendazim in a ratio of 1:200 for 20 minutes, air until the incision forms a protective film, and then cut. The matrix ratio plan is to prepare the rooting medium according to vermiculite: perlite: river sand =3:2:1, and the thickness is maintained at 15cm. Water is supplied by the bottom dipping basin method, and the air humidity is maintained at 90% with a transparent cover. New root systems can be seen for three weeks.
Through scientific environmental management and standardized cuttage operations, it can not only help crabapple survive the winter safely, but also achieve large-scale reproduction of plants. Special reminder is that before winter comes, the application of nitrogen fertilizer should be gradually reduced and the application of phosphorus and potassium fertilizer should be increased to enhance cold resistance. Regularly check the back of the leaves to prevent aphids from gathering and accumulate energy for the spring bloom next year.