Summary: the dwarf sunflower is a sunflower, small, long-lived plant, suitable for plant planting, and can be used to build the sunflower sea. Today we will give you a detailed description of how the sunflower seeds are grown。
Timing of cultivation
The most appropriate planting time for short sunflowers is in the spring of march-april. During this period, the temperature has gradually warmed up, the soil is suitable for seed growth, and the average soil temperature is about 18 - 25°c; in the summer, though high, it can be planted if protected; in the autumn, though the temperature is right, it is immediately winter, short-lived, and short-lived sunflower seeds may not bloom before planting。
Ii. Cultivation methods
Soil preparation: short sunflowers are suitable for growth in lax, fertile and well-drained soils. Before seeding, soil was tanned in sunlight for 1-2 days and disinfected to kill bacteria and pests in the soil. The soil is then fed into a flower basin or seeding bed, so as to level the surface and sow the soil。
Seed treatment: selection of plume-free sunflower seeds, full of particles, which can be immersed in hot water for 6 - 8 hours at around 30°c in order to increase seed gerontization. Seeding can be done when the shell starts to crack。
Seeding methods: short sunflowers are generally broadcast or on-demand. In the case of sowing, the treated seeds are spread evenly on the prepared soil surface and then lightly cover a layer of approximately 1-2 cm thick ground. Be careful not to cover too thick, otherwise seeds will be difficult to break. If on-demand, 10 - 15 centimetres of each seed canton is inserted into one - two grains of seed, then covered with thin soil。
Water wetting: short sunflower seeds are seeded in a timely manner to keep the soil wet. The sprayer can be used to spray water to avoid overflowing the soil above the seeds。
5. Light: short sunflowers are radiant plants that require adequate light after they have sprouts. • placing a flower basin or seeding bed after seeding in areas with abundant sunlight, such as the southward balcony or indoor outer space, while avoiding the direct firing of strong light and the burning of seedlings。
6 fertilizer: when the sunflower grows 2 - 3 for the real leaf, it can start fertilization. The choice is to use thin liquid fertilizers, such as diluted composite fertilizers or corroded pie fatty water, which is applied every 1-2 weeks。
