Guide for the maintenance of cornflower flowers for monitoring sulfur dioxide

Guide to the maintenance of cornflower flowers in "Monitoring sulfur dioxide"

Cornflower (picture) originated in Europe, was originally a wild flower, now the cornflower flower is larger, a variety of colors, blue, white, light red, purple and so on, among which purple and blue are the most valuable.

one. Monitoring efficacy

Cornflower can monitor sulfur dioxide. When the concentration of sulfur dioxide in the air is high, the corn chrysanthemum will lose water and become dry and cannot blossom normally.

2. Maintenance guidelines

(1) selecting a pot to plant cornflower should not choose plastic or porcelain pots with poor air permeability, which can easily lead to rotten roots, so it is best to choose mud pots.

(2) the selected soil cornflower is suitable to grow in the soil with fertility, loose soil, smooth drainage and sandy soil, and the basin soil should have good ventilation and drainage.

(3) the plants were first selected before cultivation, and the young plants of corn chrysanthemum had better choose those that had grown 6-7 leaves, and then transplant them to flowerpots. Prepare fertile and loose soil in the flowerpot, gently compact the soil at the root base of the young plant, pour enough water, and put the flowerpot in a warm and ventilated place for normal maintenance and management.

(4) the growth environment of light cornflower must meet the conditions of good ventilation and sufficient light, otherwise, it will die because of dark and humid environment.

(5) temperature cornflower likes to grow in a cool and cool environment and has a certain cold tolerance, even in cold winter, as long as the indoor temperature is appropriate, it can grow normally, and the suitable temperature is generally 8-15 ℃.

(6) watering is usually done once a day. Summer is prone to drought, need to be watered in the morning and evening, in order to maintain the wettability of the basin soil, but also to cool the basin soil, but the amount of water can not be too much, not allowed to have stagnant water. Because the cornflower can not grow normally in a dark and humid environment, it must be watered properly every time during the growing season. Too much water will lead to too much moisture in the basin soil and cause the root system of the plant to rot.

(7) before fertilization and planting, the cornflower should be given base fertilizer once, and then liquid fertilizer should be applied once a month to ensure the normal growth of the plant, and stop fertilizing until the bud appears.

(8) the propagation method of cornflower is sowing method, which can be carried out in both spring and autumn, and it is suitable to sow in autumn.

(9) pruning the stem of Chrysanthemum morifolium is thin and weak, and coring treatment should be carried out at the seedling stage, in order to make the plant grow low and promote the sprouting of lateral branches.

(10) the cornflower Xiguang can be planted on the ground or potted on the balcony, windowsill and other sunny places. it can also be used as a cut flower decoration restaurant, living room and study.