Tulip promoting cultivation method

When the tulip bulbs were stored in 9 ℃ boxes for a period of time, the flower buds could germinate 7 to 10 days earlier than those directly planted in soil. Because it is very important to give a certain low temperature treatment to the tulip bulb. In general, within a few weeks, the treatment temperature should be gradually reduced from 9 ℃ to 7 ℃, 5 ℃, 2 ℃, so that it could accept the necessary low temperature before entering the greenhouse for cultivation.

The bulbs, which were treated in 9 ℃ boxes, began to grow and elongate as soon as they were planted in the soil in the greenhouse. The reason is that its root system can absorb water directly, so it can reduce planting time and obtain higher yield than ordinary greenhouse planting. Another advantage of this kind of cultivation is that it can prolong the cultivation season. Bulbs can be planted from the end of October to mid-February of the following year, and the harvest time is usually in mid-March.

Solution cultivation in 2001, about 30% to 40% (300 million to 400 million bulbs) of tulips in the Netherlands were grown by solution cultivation. At first, there were many problems in the cultivation of tulips by solution method, such as root rot, bulb damage, thin and fragile stem and so on. But today, the quality of tulips cultivated in this method is comparable to that cultivated in soil. With the exception of some sensitive varieties, such as An-gelique, almost all varieties of tulips can use this method.

If the sensitive variety of tulip is to be cultivated with long stem and late maturity, it should be preheated for a short time before the bulb is taken out, because it is more beneficial to plant growth.

Tulips cultivated in solution have stronger leaves and fewer wilted leaves than those cultivated in soil, and can better wrap the stems of plants, providing convenience for harvesting and packaging.

Tulip bulbs should be stored in a dry environment before solution cultivation. After 3 weeks of low temperature treatment, the seed balls were put into the solution of the planting plate. Sowing can be done either by machine or by hand. At this time, the root system of the bulb will grow to 3 to 4 centimeters long at 5 ℃. At this stage, it takes 3 to 4 weeks for early ripening and 1 to 2 weeks for late ripening. The planting tray can be placed either in a facilitative planting chamber or in a greenhouse, with a room temperature between 12 ℃ and 14 ℃. In addition, solution cultivation can also ensure the normal growth of bulb roots and prevent them from being too dense or sticky due to bacterial damage.

When planted in a greenhouse, rooted tulip bulbs can be planted either in running water or in still water. In general, people use still water more often, not only because it is more economical, but also because efficient mobile water planting plates are rare at present. Among many still water planting plates, hydro-tray planting plate has become the first choice for growers because of its reliable fixation ability. In the Netherlands, about 95% of tulip solution growers use this tray.

After a round of planting, a steam fumigation tray (treated at 60 ℃ for 1 hour) can be used to disinfect and kill the bacteria. In addition, formaldehyde can also be used to disinfect the planting plate.