Cultivation time: sunflower cultivation usually takes place in spring, mostly in march-april. The temperature at the time of planting must be between 18 and 25 degrees c。
Pick a seed: sunflowers have many varieties and need to be selected according to the planting environment, needs and then buy seeds. Pick out the dry deforming seeds and leave them full of seeds, so that they can be immersed in water。
Land selection and land rehabilitation: sunflowers should be planted in the sunward areas, the land should be flat and the soil should be lax, and drainage should be facilitated. It is not particularly suitable to grow on land with high amounts of water and salt, and the sandy soil is a relatively good planting soil. Before planting, the land is to be pushed deep, at depths of 20-25 cm, and if the soil is thick enough, it can be duly poached deeper to give the soil more air。
Cultivation and seedling: spread seeds into the soil, then cover up to 1-2 cm thick, and wait for the seeds to sprout after water is served。
Timing of cultivation
Sunflower cultivation takes time, usually in spring, about march-april. At planting, temperatures are maintained between 18 and 25°c, and low and high temperatures are not conducive to seed germinates. Specific planting times are determined by local weather conditions。
Ii. Choosing a seed
Sunflowers have many varieties and are grown in accordance with the planting environment, the type of demand, and are selected and then purchased. The damaged, deformed seeds are picked out and the more full seeds are selected. The seeds purchased can be grown directly, but in order to increase the gestation rate, the seeds will be immersed in water before planting, allowing the seeds to absorb the water and thereby stimulate their gestation。
Land selection
The sunflower shall be planted in the sun, the land shall be flattened, the soil shall be lax and the drainage shall be easy. It is not particularly appropriate to grow on land with high levels of water and salt, and sandy soil is more suitable for cultivation. Before planting, it is necessary to go deep into the land, at depths of 20-25 cm, which, if the soil is thicker, can go deeper, thus making the soil more decomposition。
Iv. Growing seedlings
When the land is levelled, sunflower seeds are sowed into the soil and then covered with thin soil. In the case of small-scale cultivation, it would be preferable to plant the pointers downwards, not too deep, and to be careful that the land is not too thick and 1-2 cm thick. A proper amount of water is to be sprayed after planting to keep the soil moist and seeds sprouts to be preserved in sunlight。
