What are the cultivation methods of gladiolus in Phnom Penh?

1, basin soil. In the choice of cultivation soil for planting gladiolus, it is best to choose sandy soil, which has good drainage and permeability and is not easy to accumulate water. It is best to choose a plastic basin with holes in the ground. If the ventilation is good, you can choose shallow pot plants.

2. temperature. The lowest temperature for gladiolus growth is 3℃. When the temperature is lower than 3℃, the growth and development of plants will be inhibited, that is to say, the growth and flower bud differentiation of plants will stop, and the developing flower buds will also stop growing. The optimum temperature for gladiolus growth is 20-25℃ during the day and 10- 15℃ at night.

3. Lighting. Gladiolus is a sunny plant, which needs long-term illumination during its growth. In the environment where the illumination conditions permit, it can exceed 14 days of sunshine every day, especially when the illumination is insufficient in winter.

4. water. Gladiolus can be watered every 10 day to ensure the soil in the basin is moist. In summer, the weather is hot and the water evaporates quickly, so you can water it once every four days. When watering, strictly control the amount of water. Too much watering can easily cause water accumulation and lead to root rot.

5. Fertilize. After planting gladiolus, topdressing decomposed liquid fertilizer 3-4 times a month, paying attention to the content of nitrogen fertilizer and increasing the application of phosphorus and potassium fertilizer. After flowering, calcium and phosphate fertilizer can be applied topdressing to promote bulb growth. Of course, in order to make the color bright, you can use 1 times of calcium superphosphate and bone meal with water.

6, pests and diseases. Gladiolus mainly suffers from mosaic disease, dry rot, scab and other diseases, which can be sprayed with carbendazim, root irrigation or foliar spraying respectively. Spray 50% zineb solution once a week; But scabbing can only be prevented, and new soil should be disinfected and replaced every year.