When should sunflower divide its plants? How do you divide the plants?

The dividing time is mainly carried out in autumn, and the dividing method first digs out the mother plant that is 4 years and 5 years old, pure and robust in variety, removes the attached soil, and according to the structure of its branches, buds and roots, it follows its natural growth and breaks it by hand. Depending on the size of the mother plant cluster and the number of roots, it can generally be divided into 2 or 4 slightly thicker roots. Cut off some of the old, broken, and diseased roots, retain all the fine roots, and then plant.

I think it is better to divide the seedlings when they are mature, because then they can grow faster and without affecting the yield. Then you should also learn professional dividing techniques.

In the spring or autumn. Choose the branching method, find a leafy branch, cut it in half on it, and plant it in the soil so that you can divide the plant.

Be sure to pay attention to the time of sowing, pay attention to the depth of the soil, pay attention to the intensity of light, water in time, choose excellent varieties, and be sure to treat the seeds in advance when planting.

Prepare wood ash, prepare the soil, pay attention to the size of the pot, pay attention to the choice of fertilizer, pay attention to the amount of watering, and pay attention to pruning the branches and leaves after transplanting.

The first is to choose loose and breathable soil, the second is to ensure sufficient light, the third is to control the temperature between 18-30 degrees, the fourth is to water properly, and the fifth is to prune in time.

When cultivating sunflower, it can be mixed with garden soil, peat soil and perlite to make a substrate for cultivation. During the growth period of the sunflower, it is also necessary to water every 2 3 days to ensure that the soil is in a slightly moist state, and it is necessary to carry out proper pruning during the growth period of the sunflower to reduce the consumption of nutrients.

Sunflower is suitable for growing in slightly acidic soil, and when cultivating sunflower, it is necessary to mix garden soil, peat soil and perlite into nutrient soil as a substrate for cultivation. In addition, when maintaining potted sunflowers, it is necessary to change the pot every 1 2 years, and when changing the pots of the sunflower, an appropriate amount of ferrous sulfate solution can be sprinkled into the soil to make the soil zinc retinoate.

The growth of sunflower needs sufficient light, but it is not tolerant to strong light exposure, so it can be placed in a position with sufficient astigmatism indoors for maintenance to promote photosynthesis of sunflower. In addition, in winter, it is necessary to move the sunflower to a bright indoor place for maintenance, so that the branches and leaves of the sunflower become greener.

Sunflower is suitable for growing in a humid environment, in the process of maintaining sunflower, it needs to be watered every 2 3 days to ensure that the soil is in a moist state, and it is necessary to regularly apply light nitrogen fertilizer to supplement nutrients during the growth of sunflower, in addition, it is also necessary to spray the diluted fertilizer every 10 days, so that the root system of sunflower can better absorb nutrients.

Note that proper pruning is also needed during the growth period of the sunflower, mainly to cut off the tall branches in half, and then prune off the useless branches, decaying branches and weak branches on the sunflower. Only 5 or 8 branches can be retained, and other side branches can also be pruned to reduce nutrient consumption.

1. Breeding environment: Cultivating sunflower should be prepared with humus, perlite, and base fertilizer, and the temperature should be kept between 20-35 degrees. 2. Water and fertilizer management

In summer, water is watered twice a day, and diluted liquid fertilizer is applied every 2 weeks. 3. Precautions: After the whitefly is infested, it is necessary to spray the insects with trichlorfon and ventilate it.

1. Breeding environment

When cultivating potted sunflower, it is necessary to use loose and porous pottery pots, and use humus, perlite, and base fertilizer to prepare culture soil to provide a suitable growth environment for plants, and sunflower is a tropical plant, and the breeding temperature should be kept between 20-35 degrees to avoid the plant being frozen.

2. Water and fertilizer management

Loose tail sunflower has a greater demand for water and fertilizer, it can be watered 1-2 times a week in spring and autumn, and the plant is in the growth period in summer, it is necessary to water 2 times a day, and apply diluted liquid fertilizer every 10 days, the temperature decreases in autumn and winter, it is necessary to reduce watering and stop fertilization.

3. Precautions

Loose tail sunflower is suitable for growing in a ventilated environment, poor ventilation of the breeding site, it will lead to plant infection with white whitefly and other pests, yellow leaves, long spots, at this time to spray the leaves with trichlorfon agent, and move the loose tail sunflower to a well-ventilated site.

1. Transplanting. When potting the seedlings, first put a 2-3 cm thick coarse-grained substrate at the bottom of the pot as a water filtration layer, sprinkle a layer of fully decomposed organic fertilizer as the base fertilizer, with a thickness of about 1-2 cm, and then cover with a thin layer of substrate, about 1-2 cm thick, and then put in the plants to separate the fertilizer from the root system and avoid burning the roots.

2. Soil. Acidic soil should be selected for indoor potted planting of sunflower, and sandy loam soil with high humus content should be selected in the north. It can be prepared as culture soil with humus, peat soil plus 1 3 river sand and part of the base fertilizer.

3. Watering. Watering should follow the principle of dryness and wetness according to the season, watering should be done more in the dry and hot season, and watering should be controlled at low temperature and rain. In the northern region, especially in places with more salt and alkali in water, attention should be paid to the frequent use of alum to adjust soil acidity.

Keep the potting soil moist at all times. During the high temperature period in summer and autumn, it is necessary to keep the air humidity around the plant high, but avoid water accumulation in the potting soil, so as not to cause root rot.

4. Fertilization. Loose-tailed sunflower is generally applied every 1-2 weeks with decomposed liquid fertilizer or compound fertilizer to promote the vigorous growth of plants, the leaf color is dark green, and nitrogen-containing organic fertilizer can be applied appropriately in summer, and organic flower fertilizer such as sesame paste residue can be applied in winter while keeping the potting soil dry and wet.

5. Temperature. Sunflower likes warmth, and the optimum growing temperature is 20-35. If it is more than 35 or less than 10, the foot leaves will turn from green to yellow if the cultivation management is slightly improper.

If the temperature is too low, the leaves will be yellow, the leaf tips will dry up, and cause damage to the roots, affecting the growth of the next year.

6. Light. Loose tail sunflower should be shaded in summer, the most avoid direct sunlight, even if it is exposed to the sun in a short period of time, it will cause the leaves to burn yellow, it is difficult to recover, and it should be placed in a strong scattered light place for indoor cultivation and ornamentation, and it can also tolerate a darker environment, but it should be regularly moved to a better place for outdoor light maintenance, and maintain a higher ornamental state.

7. Precautions. (1) Pruning: Winter pruning, in the winter when the plant enters the dormant or semi-dormant period, the branches should be cut off such as thin, diseased, dead and too dense.

2) Repotting: Repotting once every 2-3 years in early spring, and repotting once every 3-4 years for old plants. After changing pots, it should be placed in a semi-shaded place with high air humidity.