When are corn seedlings transplanted? How do you grow corn seedlings?

Spring is a good time for sowing, and before long farmers will be busy planting crops. Corn is planted during this period, so when are the seedlings transplanted? How do you grow corn seedlings? Next, the editor will explain in detail.

1. When are corn seedlings transplanted?

Corn seedlings are generally transplanted from the end of April to the beginning of May. The optimal transplanting leaf stage is controlled at the 2.5-3.0 leaf stage. After transplanting, water thoroughly in time. The main thing is to control temperature and humidity. From before emergence to the two-leaf stage, the focus is on keeping warm. The temperature inside the film is usually controlled at 20-25 degrees C. If it exceeds 30 degrees C, open both ends of the film for ventilation and cooling. For humidity inside the film, keep the soil from turning white. If the surface soil of the seedbed turns white, remove the film and water, and cover it tightly again in time. Always keep the soil moist, transplant at the right time, and plant at a reasonable density. The transplanting seedling age is generally suitable from the 2-leaf-1-heart stage to the 3-leaf-1-heart stage, and at the latest should not exceed the 4-leaf-1-heart stage. The key to transplanting is protecting the root system and improving the survival rate. When transplanting, grade by seedling size and strength, transplant in sections, and carry out directional transplanting, with ditches running north-south and orientation east-west, leaves perpendicular to the row direction. The best transplanting depth is level with the green-white boundary on the stem. The main transplanting time for corn seedlings is from the end of April to the beginning of May, and the best transplanting is controlled at the 2.5 to 3.0 leaf stage of the seedlings for the best effect.

2. How do you grow corn seedlings?

1. Seedbed selection

Choose a place facing the sun (to increase light duration), sheltered from the wind (to increase temperature and preserve moisture), and close to the transplanting plot as the seedbed (convenient for transplanting).

2. Prepare nutrient soil

Choose loose, fertile soil with relatively good water absorption as nutrient soil. Depending on the situation, appropriately add organic fertilizer and compound fertilizer, dissolve them with water, and mix with the nutrient soil.

3. Seed treatment

Before sowing, soak and sprout the selected high-quality corn seeds. When the seeds show white, they can be sown (on the day before sowing, pay attention to disinfecting and watering the seedbed). When sowing, only one seed can be placed in each block-shaped area of the seedbed, with the seed radicle facing down, then cover with soil, then water to ensure the soil is moist, and finally cover the seedbed with an arched shed and plastic film.

4. Seedbed management

The seedbed should maintain sufficient humidity and be watered in time, and the temperature is generally controlled between 20~25 degrees C. After emergence, control the water amount to prevent excessive growth. When the corn grows to the 2-leaf-1-heart stage, begin drought hardening of the seedlings so that the seedlings adapt to the external environment. After that, transplanting can be carried out. The best transplanting time is from the 2-leaf-1-heart stage to the 3-leaf-1-heart stage, and at the latest it should not exceed the 4-leaf-1-heart stage.

From the above, we can know that corn seedlings are generally transplanted from the end of April to the beginning of May, so before that, corn seeds need to be used to grow seedlings. The editor above also introduced some seedling-growing methods in detail, hoping to help everyone.

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