Breed method of blue - The Plant Aide

The autumn chrysanthemum is common in our daily life, and the flowering time is usually in September and November in autumn. Different chrysanthemum varieties, flowering time is not the same, summer chrysanthemum blossoms in summer, a year can blossom twice, once in May of the lunar calendar, and once in September of the lunar calendar. Cold chrysanthemum, also known as winter chrysanthemum, blossoms relatively late, blooming in December every year, and can last until about January next year.

1. Soil:

Because of its strong ability to absorb fertilizer, it is advisable to use loose, fertile, permeable and water-storing soil for cultivation.

2. Illumination:

Rach is a long-day crop. Adequate sunlight promotes rapid growth.The light saturation point (LSP) of azulene is 30-50KLx.

3. Watering:

It is necessary to keep the soil moist at all times.However, water should not be accumulated in the field, otherwise root hypoxia will occur, affecting normal growth, reducing yield, and even causing plant death in serious cases.

4. Temperature:

It prefers warm and humid climates, but can also adapt to high and low temperatures, with a maximum resistance to low temperatures of -15 and high temperatures above 35 .The suitable temperature for growth is 15-20 .

5. Precautions:

The damping-off was the main disease.Before sowing, a small amount of lime water and pentachloronitrobenzene can be used to disinfect the soil in advance when tidying up the seedling bed soil, and at the same time, attention should be paid to the ventilation and light transmission of the seedling bed to prevent the occurrence of damping-off.The common pests are diamondback moth and aphid.Insecticide spraying can be used to control pests, and trapping technology can also be used to trap and kill pests, which has better effect than insecticide and is safe to people and livestock.