Heading: cultivated in the spring with a small cabbage field for the management of suction
It's a cold-resistant variety. Choose a special type of smoke resistant, spring special. Depending on the spring temperature of each region, a detailed look at the description of the species in the market and the selection of the varieties suitable for the area may be made。
We're going to have to keep the baby warm. Spring cabbage requires seedlings to be planted late in the nursery, in the greenhouses, to be kept warm and to ensure a minimum temperature above 10 degrees celsius in the greenhouses in order to prevent seeding. Where greenhouse facilities are not available, care is taken to keep warm, especially at night, using small and medium-sized sheds, arch sheds or sunbaths. At the same time, during hypothermia in seedlings, the use of 4000-fold liquids of perchlorophenyl propate (cip) inhibits the pumping of thallium, which is facilitated by the spraying of the back of the leaf if it is too cold。
Direct sowing crops are used. In the first two weeks of production, the sheds were covered with thin film and baked in closed areas, using the production of large cabbage, cabbage, oil and so on. After seeding, use a drip tube with pre-burned water and be careful to sow wet the aim is to prevent high water and cool water from lowering the temperature and to reduce the humidity of the shed and avoid disease。
Saplings and later management. When spring cabbage is planted, the seed is selected and planted. For growing and strong seedlings, nutrition is not easy to extract; while the old and the sick and the sick are often young, i. E. The weak. Therefore, planting must be done well and well。
Direct seeding of oil, cabbage, leaves, etc., should also be accompanied by a strong plant when the seedlings are produced, in order to prevent pre-eminence。
With regard to water management, less water and less water. Indoor evaporation in the spring sheds is low, water dispersion is slow and the frequency of water irrigation should be reduced. The water content of the soil is kept under constant review, and water is determined on the basis of the lack of water in the soil, which, according to the principle of promoting production in the spring, cannot be dried, but must be kept under strict control each time water is poured in in such a way that the soil is wet and water is cut off. Overwatered, soil temperatures are too fast, cold roots are slow to grow, and the evaporation evaporated sheds become more humid indoors, with low temperatures and high humidity prone to outbreaks. (cop china)
