A detailed explanation of the cultivation Strategy of Petunia

Petunia and morning glory are two different families and genera. Morning glory, Petunia, Petunia. Annual climbing flowers. Petunia, Solanaceae, Bidong eggplant. Perennial herbs.

Petunia can be said to be the king of grass flowers, petunia is almost a variety of flower friends, indeed, petunia is a good species and easy to produce the effect of plants, not only complete flowers and colors, but also a large number of flowers, blooming constantly, not afraid of cold and heat, the planting method of petunia is actually very simple.

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1. Sowing seeds

Because the seeds of petunia are fine, there is no need to cover the soil for sowing. Sow the seeds on the surface of the fine soil and spray water (do not water directly so as not to wash the seeds deep into the soil) so that it is difficult to germinate. The optimum temperature for seed germination of Petunia is 15 ℃-20 ℃. The temperature below 10 ℃ generally can not germinate, and the absence of sunshine indoors also affects germination. The temperature is too low and it is not easy to germinate or grow slowly after germination. It is easy to rot buds if the temperature is too high.

Petunia: a common variety of petunia

Southern Guangdong can sow seeds all year round. I broadcast it about every 2-3 months, because it keeps the flowers blooming all year round. I am still "euthanized" for senescent plants even if they bloom again. In order to keep the balcony potted flowers ornamental. The substrate I use for sowing and planting is sandy soil mixed with commercially available cultivated soil (1:1). Use spray water supply to keep the soil moist, but not too wet, otherwise the seeds will not germinate in the deep layer, depending on the weather and temperature, they can germinate 5-10 days after sowing.

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2. Transplanting

The seedlings can be transplanted to large pots when they grow 4-5 true leaves. Use 20cm caliber flowerpots, one for each pot. The big basin also uses the above-mentioned soil, but adds granular organic fertilizer and compound fertilizer as base fertilizer. Do not directly bask in the sun in the first few days after transplantation and put it in a ventilated and shaded place. The seedlings will grow new leaves in a few days. Under the condition of suitable temperature (15 ℃-25 ℃), you can grow up in a month.

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3. Watering

The seedlings of petunia are very weak. The water should not get too wet, or it will rot easily, especially if it is too cold or too hot. Petunia like dry and afraid of wet, in the growth process, need enough water, but not too much watering. Do not water too much at the seedling stage to make its roots developed. In this way, the plant branches are very exuberant.

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4. Base fertilizer

In the early stage of planting, the soil is fully fertilized. In the past, there was too much watering in the seedling stage, which led to rotten roots. After pulling up the plants, it was found that the roots were very underdeveloped. It is good to adopt the method of preferring dry to waterlogging.

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5. Foliar fertilizer

When the stamens appear, do not apply nitrogen fertilizer, instead use potassium dihydrogen phosphate solution to spray foliar. In this way, the plant will not grow only, and there will be many stamens. After petunia blossoms, I spray a mixture of potassium dihydrogen phosphate and organic amino acid liquid fertilizer on the leaves every 7-10 days. It is found that it has an obvious effect on prolonging the florescence and increasing the freshness of flowers. Flower friends can give it a try. If the concentration of the liquid is not too high, it will have no effect even if it is sprayed on the flowers. The concentration of my spray was less than 0.1%, and I didn't find any effect on the flowers.

6. Apply thin fertilizer frequently

At this time can apply thin nitrogen fertilizer, I usually use compound foliar fertilizer, urea diluted and sprayed foliar. It can also be made by mixing chicken shit, bone meal and bean dregs with other organic matter. Each basin uses about 20-30 grams (estimated). I use less inorganic mixed fertilizer. Leaves a little yellow is due to lack of fertilizer, to apply thin nitrogen fertilizer (urea, etc.), it is best to spray foliar.

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7. Pick the heart

As long as the application of water and fertilizer is controlled at the seedling stage, the plant will branch naturally and there is no need to pick the heart. The petunia I planted didn't pick the heart. If the plant growth is uneven (for example, one branch grows very fast, other branches grow slowly), you can also control and adjust the plant type by coring.

8. Medication

Dwarf cattle grow whitefly and leaf miner, just use a little flower protection god, or small powder medicine + small blue medicine.

END

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