1, temperature

Strawberry roots began to move at 2℃, and the optimum temperature for root growth was 17 ~ 18℃, and the roots accelerated aging above 30℃. Strawberry plants are neither heat-resistant nor cold-resistant, and begin to grow when the temperature reaches 5℃. The growth range is 10 ~ 13℃, and the optimum temperature is 15 ~ 25℃. The optimum temperature of creeping vines is 20 ~ 30℃, the leaf growth temperature is 13 ~ 30℃, the photosynthetic efficiency decreases when the temperature is above 30℃ and the temperature is below 15℃. Plants below-1℃ and above 35℃ have serious physiological obstacles. But the overwintering rhizomes can tolerate the low temperature of-65438 00℃. The weather in June-August is dry, hot and sunny, which has a serious inhibitory effect on strawberry growth. No new leaves grow, and old leaves sometimes burn or burn. Strawberries began to bloom at an average temperature of 65438 00℃. If the flowering period encounters low temperature or freezing injury below 0℃, the stigma will turn black and lose fertilization ability.

2. Lighting equipment

Strawberry is a light-loving crop and has two requirements for light. The first is the requirement of light intensity. During the growing period, the light intensity around the leaves ranges from 25,000 to 60,000 lux. The stronger the light, the better the growth. The second is the requirement of sunshine length. There is no strict requirement on sunshine length in strawberry seedling stage and fruiting stage. From the point of view of photosynthesis, the longer the sunshine, the better. However, when the sunshine is too strong and accompanied by high temperature, shading and cooling measures should be taken.

Step 3: Moisture

Strawberry has shallow roots and is not drought-tolerant, but because of more leaves, the leaves update faster and need more water. In order to solve the contradiction between large water demand and shallow roots, it is necessary to water more and keep the soil moist at all times. Generally speaking, the relative water content of soil during normal growth is not less than 70%; The fruit needs water most when it grows and matures, which is required to reach 80%; The flower bud differentiation stage needs less water, and 60% is suitable.

Strawberries are neither drought-resistant nor waterlogging-tolerant. The soil is required to have enough moisture and good air permeability. Long-term water accumulation in the field will seriously affect the growth of roots and plants and reduce disease resistance. In severe cases, the leaves will turn yellow and fall off. Pay attention to field drainage in rainy season.

4. Land

Strawberry is a fibrous root crop, and most of its roots are distributed in 20 cm shallow soil, so the surface structure and texture of soil have a serious impact on the growth of strawberry. It is most suitable for fertile soil with rich organic matter, water retention, drainage and good ventilation. Grass and onion don't have strict requirements on soil. Sandy loam can promote early development and high yield in the early stage, but the soil is prone to drought, short fruiting period and low yield. On clay, plants grow slowly and bear fruit later, but they develop well two or three years after planting. Strawberries like slightly acidic soil, and the appropriate pH value is 5.5 ~ 6.0.