Method and time of raising okra seedlings

Okra can be sowed directly or raised in a nutrition bowl, direct seeding is usually carried out in early April, and seedling raising in greenhouse can be carried out around March. The suitable temperature for seed germination is about 30 ℃. Because of the thick outer skin of the seed, the seed can be soaked in warm water of about 30-35 ℃ for about 10 hours, then fished out, drained and wrapped, and placed in an incubator of about 25-28 ℃ to accelerate germination. When the seed whitening rate is about 50%, it can be sowed.

I. method and time of raising okra seedlings

The main results are as follows: 1. Okra can sow the seeds directly in the soil, or use a nutrition bowl to raise seedlings, generally direct seeding in the first ten days of April, and build a greenhouse to raise seedlings around March.

2. The suitable temperature for seed germination is about 30 ℃. If the temperature is lower than 12 ℃, it will lead to slow germination. In cold and moist soil, seed germination will slow down, even will not germinate, so it is necessary to accelerate seed germination.

3. Because the outer skin of the seed is relatively thick, the seed should be treated before sowing, during which the seed can be soaked in warm water of 30-35 ℃ for about 10 hours, then removed and drained, wrapped and placed in a 25-28 ℃ incubator for about 2 days. When the seed whitening rate is 50%, the seed can be sown.

2. Methods of seedling raising and transplanting

The main results are as follows: 1. In the northern region, seeds can be sown in sunny beds and solar greenhouses in the first and middle of March. The nutrient soil of seedling bed is made of 6 parts of garden soil, 3 parts of mature organic fertilizer and 1 part of fine sand.

2. Before sowing the seeds, soaking seeds to accelerate germination, then leveling the seedling bed, sowing according to the row spacing of 10cm, and covering the soil thickness of 2cm.

3. After sowing, the temperature of the seedling bed should be kept at about 25 ℃. After waiting for 4-5 days, the seeds can germinate and emerge, and the seedling age is 30-40 days. When the seedlings grow to 2-3 true leaves, it is suitable to use plastic bowls, nutritious soil blocks and other root protection seedlings, which is conducive to the cultivation of healthy seedlings at the right age.

4. Okra can not be watered in the seedling stage, otherwise it will easily lead to root rot. During this period, the irrigation time of head water can be postponed appropriately, the first time of watering before the budding of okra flowers, the second time of watering at flowering stage, and the third time of watering at filling stage. It can be watered three times in the whole growth process.

3. Methods of seed direct seeding

1. Okra seeds can be divided into multiple lines of direct seeding. Soak the seeds for about 12 hours before sowing, then remove and drain, place them at 25-30 ℃ to accelerate germination, wait for 1 day, after the seeds germinate, the whitening rate is about 60%.

2. You can choose to sow the seeds after the frost period. Before sowing, the soil should be watered thoroughly, and then the hole sowing should be carried out. There are 3 plants in each hole, and the depth of the hole is 2-3cm. After sowing, the amount of seed used for direct seeding is about 10 kg per hectare and that for seedling transplanting is about 3 kg per hectare.