Is it suitable to grow summer spinach in greenhouse? What is its cultivation technique?

Spinach is propagated mainly by sowing. Its seeds will not germinate in high temperature season and are resistant to cold environment. When cultivating in summer, it is necessary to select good varieties and control the temperature, otherwise its emergence rate will be very low. After solving the problem of seedling emergence, it is field management, and one of the key problems is how to ensure that spinach does not die. At present, the main causes of tree death are rainfall and disease, which can also be attributed to the weather. The suitable temperature for vegetative growth is 15-20℃, the growth is poor above 25℃, and the aboveground part can withstand the low temperature of -6-8℃. Therefore, there are many plants planted in spring and autumn, and even if they are planted with high-temperature resistant varieties, they taste bad.

At the same time, add 40 kilograms of calcium superphosphate to the field, and then level the soil. Spinach is suitable for high border in spring and summer, and suitable for flat border in summer and autumn. The border is one to two meters wide. According to different seasons and eating methods, it is divided into: overwintering spinach with big root stubble, overwintering spinach with small root stubble, submerged spinach, spinach with fire leaves, spinach with soup, spinach with green head, spinach with red head and so on. In the vast areas of northern China, the overwintering stubble and soaked spinach, which are mainly listed in March and April in spring, are watered before winter to make the root system develop deeper. After two real leaves appear, they will accelerate their growth, water them in time, and apply nitrogen-based quick-acting fertilizer. When the leaves stop growing in winter, 4-6 leaves can safely overwinter.

In the long sunshine environment, it will also bolting and flowering; It is more suitable for growing in the environment of low temperature and short sunshine, and can form high-quality products. Spinach is rich in nutrition and is a kind of vegetable that people like very much. Planting winter spinach can supply the early spring market with good economic benefits. The germination rate of spinach seeds can be improved by accelerating germination and sowing. But when sowing, we should apply sufficient base fertilizer, carefully prepare the soil, and water the soles of our feet before sowing. After sowing, spray water or water once every morning and evening to keep the soil moist until seedlings emerge.