Strawberry plastic greenhouse semi-promoting cultivation method

1. Timely planting, before the planting, should choose the land, soil preparation and strong seedlings and other work, the method is the same with the small shed. Strawberries should be planted according to plant growth conditions and require that flower buds have been well differentiated. Planting time is in the northern region in early October. Warm southern areas are planted in the middle and late October and when the outside temperature reaches 15 to 17°C. If the colonization time is too late, the temperature and the ground temperature decrease, the dormancy period of strawberry comes, and the growth of new roots is inhibited; if it is too early, the colonization before October will affect the differentiation of flower buds, so the appropriate colonization period should be selected according to the local climatic conditions. . The cultivation style of greenhouses is mostly planted in large ridges, with ridge width of 90 to 100 PCT water, ridge height of 15 cm, 14 rows per ridge, plant, row spacing (15 to 20) centimeters (20 to 25) centimeters, and furrow width 30 to 40 cm. Immediately after planting, water should be used to promote seedling survival. Afterwards, water is usually poured for 5 days, but it depends on the soil moisture conditions. In areas with conditions, drip irrigation or sprinkler irrigation can be used to keep the soil moisture constantly.
2. timely insulation. From the time of colonization to the beginning of the incubation period, the management methods for half-facilitated cultivation in plastic greenhouses are the same as those for open cultivation. Strawberry in the natural conditions through the dormancy, has basically satisfied the demand for low temperature, but the suitable time for the semi-facilitated cultivation is limited by the insulation performance of different varieties, different regions and insulation facilities. Different breeds have different lengths of dormancy. Long-term dormancy breeds require high cold, late to release dormancy, and late soaking time; short dormancy species require low cold, early dormancy, and earlier soaking times. In different regions, the degree of cold in winter is different, and the time for strawberry to enter dormancy and release dormancy is different, and the soaking time is also different. The quality of the insulation facilities will also have a direct impact on the preservation time. In either case, the shed time must be appropriate. If the shed is too early, the strawberry's demand for low temperature is not met, and the dormitories do not pass through the dormancy. Even if the temperature is suitable for growth after the shed, the plant is still in a dormant state. Inflorescence and flowering, but the flower bud quality is not good, peduncle and petiole are short, small leaves, small fruit, low yield, poor quality. If the shelter is too late, the outside temperature is low, and the strawberries go into dormancy. Even if the insulation is performed again, it will be difficult for the plants to return to normal growth and development in a short time.
The method of spraying Gibberellin is often used in production to promote plant growth, but if the peduncle can only be elongated, the petioles do not elongate, and the leaves do not spread. This is generally due to the poor thermal insulation performance or poor management of the facility. The temperature in the shed does not go up and it cannot meet the needs of plant growth, delaying the ripening period of the strawberry. Therefore, in the nursery period, the low temperature needs of the strawberry plants must be satisfied, and during the growth and development period of the strawberry, the shed must maintain a high temperature and be combined with light treatment. The shed time is available in Jiangsu and Zhejiang in late December and early January, and in northern China in late November and early December.

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