1, sprouting and the beginning of the growth period: ground temperature stabilized at 2-5 ℃, the root system began to grow. 2, buds: strawberry above ground part of the growth of 1 month after the buds will appear. 3, flowering and fruiting: from the buds revealed to the first flower open about 15 days, from flowering to fruit ripening about 30 days. 4, the vigorous growth period: when the berry harvested, the 5, bud differentiation: After the vigorous growth period, bud differentiation begins under the conditions of low temperature and short sunshine. 6, dormant period: As the surrounding temperature drops, the sunshine time is shortened, the strawberry growth will gradually enter the dormant period.

First, the strawberry growth process

Strawberry's growth process probably needs to go through six stages, respectively, budding and the beginning of the growth period, buds, flowering and fruiting period, the vigorous growth period, bud differentiation, dormant period.

1, sprouting and the beginning of the growth period

Ground temperature stabilized at 2-5 ℃, the root system began to grow, 7-10 days earlier than the ground. The growth of the root system in this period, mainly relying on last year's rhizome and the nutrients stored in the roots to continue to extend, as the ground temperature rises, and gradually send out new roots.

2, bud period

Strawberry above ground part of the growth of 1 month after the appearance of buds. When the new stem grows three new leaves, and the fourth leaf has not yet grown, the inflorescence will be emblematic of the leaf sheath of the fourth leaf, and then the pedicel will gradually elongate, revealing the whole inflorescence.

3. Flowering and fruiting period

It takes about 15 days from the time the buds are revealed to the opening of the first flower, and about 30 days from the time the flower blossoms to the ripening of the fruit. The length of the flowering period is related to the variety and environmental conditions, and usually lasts about 20 days.

4, exuberant growth period

After the berry harvest, the plant enters the exuberant growth period. First, a large number of axillary buds occur stolons, new stems branching growth accelerated, new stems basically a large number of adventitious roots, the formation of a new root system, a large number of occurrences of stolons and new stems, the formation of new young plants.

5, flower bud differentiation period

After the vigorous growth period, strawberry new stem apical bud formation, in the outside world at low temperatures (15-20 ℃) and short sunlight conditions began flower bud differentiation. The beginning of bud differentiation marks the transition from nutrient reproduction to reproductive growth.

6, dormant

After the formation of strawberry flower buds, with the lowering of the surrounding temperature, shortening of sunshine, strawberry growth gradually entered the dormant period. Open field strawberries usually enter the dormant period from late October to early November.

Second, what are the common pests and diseases of strawberry

1, common strawberry diseases are leaf spot, powdery mildew, gray mold, root rot, anthracnose, snake eye disease, etc., and common insect pests such as aphids, whitefly, mites, nematodes, tigers, thrips and so on. These pests and diseases will have a great impact on the growth of the plant, reducing the yield, not to mention the seriousness of the situation will lead to sterilization.

2, the prevention and control of strawberry pests and diseases, in addition to the timely adoption of pharmaceutical prevention and control, focusing on prevention, daily to strengthen the management of the orchard, timely removal of diseased and old residual leaves, the fallen leaves and fruits, diseased leaves and fruits clear out of the orchard, to prevent re-infection.