How to raise loose-tailed sunflower culture methods and matters needing attention

Loose-tailed sunflower likes a warm environment, its shape is strange, like a big comb, very interesting, loved by many friends, then if a lot of small details that need to be paid attention to during breeding will affect its growth, then exactly how it is planted, what kind of small skills, let's take a look.

How to raise loose-tailed sunflower

First of all, choose full, no deformed incomplete, no insect pests of the seeds, it is best to choose the seeds, and then disinfect the seeds only need to soak in 60 degrees hot water for 15 minutes. It can also be sterilized with medicine, and then soak the seeds in warm hot water of about 40 degrees for 12-24 hours to make the seeds absorb water and swell. Finally, put the seeds one by one in the soil or matrix, then cover 1-2 cm of soil, and wet the soil with a sprayer. The strength should not be too strong so as not to wash the seeds up. when the soil is slightly dry, water it with a sprayer, and it will germinate after more than 20 days.

Culture method of loose-tailed sunflower

1. Transplanting: when installing the pot, the loose-tailed sunflower seedlings first put a coarse-grained substrate 2-3 cm thick into the basin bottom as a filter layer, sprinkle it with a fully mature organic fertilizer as base fertilizer, with a thickness of about 1-2 cm, and then cover it with a thin layer of matrix, about 1-2 cm thick, and then put in the plant to separate the fertilizer from the root system and avoid root burning.

2. Soil: slightly acidic soil should be selected for indoor pot cultivation of sunflower, and sandy loam with high humus content should be selected in the north. The culture soil can be prepared with rotten leaf soil, peat soil plus 1 bank 3 river sand and part of base fertilizer.

3. Watering: the watering of loose-tailed sunflower should follow the principle of dry and wet according to the season, more watering should be appropriate in the dry and hot season, and watering should be controlled in low temperature, overcast and rain. In the northern region, especially where there is more salt and alkali in the water, attention should be paid to the frequent use of black alum to regulate soil acidity. Always keep the basin soil moist at ordinary times. Summer and autumn high temperature period, but also often maintain a higher air humidity around the plant, but avoid basin soil stagnant water, so as not to cause rotten roots.

4. Fertilization: loose-tailed sunflower generally applies rotten liquid fertilizer or compound fertilizer every 1-2 weeks to promote plant growth, thick green leaves, appropriate topdressing of nitrogen-containing organic fertilizer in summer, and organic fertilizer such as sesame sauce residue in winter to keep the pot soil dry and wet.

5. Temperature: loose-tailed sunflower likes warmth, and the optimum growth temperature is 20-35 ℃. If more than 35 ℃ or less than 10 ℃, the foot leaves will change from green to yellow if there is a little improper cultivation and management. It is necessary to do a good job of heat preservation and anti-freezing in winter, generally about 10 ℃ can survive the winter safely, if the temperature is too low, the leaves will turn yellow, the leaf tip will dry up, and lead to root damage, affecting the growth of the coming year.

6. Lighting: loose-tailed sunflower should be shaded in summer, most avoid direct sunlight, even if exposed to the sun in a short time, it will cause scorched yellow leaves, it is difficult to recover, indoor cultivation should be placed in a place of strong scattered light, but also can withstand the dark environment, but it is better to move to outdoor light regularly to maintain a higher ornamental state.

Matters needing attention in culture

1. Pruning: winter pruning, when the plant enters a dormant or semi-dormant period in winter, the branches such as thin, disease and insect pests, withered and overdense should be cut off.

2. Change the basin: change the basin every 2-3 years in early spring, and the old plant can change the basin every 3-4 years. After changing the basin, it should be placed in a semi-overcast place with high air humidity.

Analysis on the causes of yellowing of sunflower leaves

1. When the loose-tailed sunflower is moved into the basin, some roots may be destroyed, so that the loose-tailed sunflower can not survive well in the basin, so that the leaves will slowly wither until death.

2. When loose-tailed sunflower is heavy in the basin, if the soil is too sticky, which is disadvantageous to the growth of loose-tailed sunflower, the root system will rot, indicating that it will die, then the leaves will first yellow and fall off.

3. The growth environment of loose-tailed sunflower is suitable in the space with high humidity. If the humidity is small and the climate is dry, the edge of its leaves will turn yellow and become dry gradually.

4. Loose-tailed sunflower likes yin. If it is exposed to strong light for a long time, it may deplete the water in the basin. Once the water is missing, it will also lead to yellowing and drying of the leaves.

5. Sunflower needs a certain amount of fertilizer in the process of growth, but if the proportion of fertilizer is too large, it will also cause damage to the internal cells of the leaves and lead to the withering of the leaf tips.

6. in the process of growth, loose-tailed sunflower may also be parasitic with some insects and mites, and there will be signs of yellowing after the leaves are damaged.

The yellowing of loose-tailed sunflower leaves is a common phenomenon in the process of planting. I didn't know about these situations before, so I panicked when there were problems. Today, the editor introduced several common situations, and if you encounter them, you will be able to deal with them calmly. In fact, as long as you plant according to skills and meticulous care, there will generally be no big problems.