1, soil

Chrysanthemum matrix is made of slightly acidic sandy loam, which has good drainage and is loose and fertile. Generally, river sand with good permeability is selected, and garden soil and humus soil are added. The ratio is humus soil: garden soil: river sand = 4: 4: If possible, it is best to spray the culture soil with disinfectant such as formalin or carbendazim according to the concentration in the instructions.

2. sunshine

Chrysanthemum is a short-day plant, which is beneficial to vegetative growth under long-day conditions; Under the condition of short sunshine, it is beneficial to reproductive growth, that is, short sunshine is easy to bloom. Chrysanthemum plants generally grow to 10 leaves, and flower buds begin to differentiate in sunlight 14.5 hours. It takes 13.5 hours for flower buds to differentiate.

water

Chrysanthemum's demand for water can be summarized as "great demand, fear of water accumulation and drought resistance". So watering should be carried out in strict accordance with this feature. There is plenty of summer water, once in the morning and once in the evening, not at noon. After flowering, the water volume gradually decreases. In case of rainstorm, pay attention to drainage. Watering in winter can be reduced appropriately. Finally, never accumulate water, never accumulate water, never accumulate water.

Step 4 apply fertilizer

When changing pots, chrysanthemum should pay attention to applying sufficient base fertilizer, which can choose leftovers and rotten leaves at home. After beginning of autumn, we must give enough fat water. Generally, we apply thin water of bone paste and residue once a week, and then apply calcium superphosphate and 0. 1% potassium phosphate solution when the buds are ready to be released, so that the blooming flowers will be more colorful. Pay attention to watering and loosening the soil in time after each fertilization ~

5. Choose your heart

Kerning is the main technical measure to promote chrysanthemum branching. If we don't pay attention to the core, it will make the growth of chrysanthemum disorderly and affect the growth potential of chrysanthemum. The coring work should be carried out in sunny days, and the wound is perishable or moldy in rainy days, so it is not suitable for coring. 1 coring can remove the undeveloped tip when the chrysanthemum seedlings have formed roots, that is, about 3 weeks after cutting. The second core is that new buds appear in the axils of the top leaves. When it grows to 4-5 leaves, remove the weak leaves, and then remove the core every 1 month 1 time. Stop pinching after the end of August, select budding branches with good growth potential, and cut off excess parts to prevent nutrient waste. After each coring, decomposed fertilizer should be applied 1 time to make the lateral buds germinate vigorously.