What is the planting method of okra? In what season do you usually plant?

Okra is known as the king of vegetables, has a very high economic use and edible value, widely cultivated in tropical and subtropical areas, China's Hunan, Hubei, Guangdong and other provinces also have a wide cultivation area. So, what is the planting method of okra? In what season do you usually plant?

First, what is the planting method of okra?

1. Soil preparation and fertilization

Okra avoid continuous cropping, and can not be mixed with fruits and vegetables. The soil layer is deep, fertile and loose, and it is more suitable to conserve water and fertilizer. 75000 kg of rotten barnyard manure and 300kg of nitrogen, phosphorus and potassium compound fertilizer were applied per hectare.

2. Sowing and germination

When sowing to 2 cotyledons, the cotyledons flattened for germination, which takes about 10-15 days. After sowing at 25-30 ℃ for 4-5 days, the soil can be germinated. It usually takes about 7 days for direct seeding seedlings to be unearthed in the open field, and plastic film mulching can emerge 2-4 days ahead of time.

3. Field management

Interseedling: when the heart is broken, it is the first time that the seedlings are broken, and the weak seedlings are removed from time to time. When 2-3 true leaves are interspersed for the second time, strong seedlings are selected. The seedlings were fixed with 3-4 true leaves, and 1 plant was left in each hole.

Intermediate ploughing and weeding: after the seedlings are unearthed or planted, the temperature is relatively low, so they should be ploughed twice in a row to increase the soil temperature and promote slow seedling. The first flower should be ploughed before blooming in order to squat seedlings moderately to facilitate root development. After flowering and fruiting, the plant growth is accelerated. After each watering and topdressing, the plant should be intertilled, and the soil should be cultivated before closing ridges to prevent the plant from lodging. Summer rainstorm windy areas, it is best to choose about 1 meter bamboo pole, or branches inserted near the plant to prevent lodging.

4. Watering and fertilization

Watering: artificial sprinkler irrigation should be done in the morning and evening when there is a shortage of water within 20 days after sowing. After the seedlings are slightly larger, mechanical sprinkler irrigation or furrow irrigation can be used. The summer season is in the peak harvest season of coffee sunflower, with large water demand and high surface temperature, so it should be watered before 9 o'clock in the morning and after sunset in the afternoon to avoid root damage under high temperature. Pay attention to drainage in the rainy season to prevent dead seedlings. The whole growing period is to keep the soil moist.

Topdressing: on the basis of sufficient base fertilizer, proper topdressing should be applied, not partial application of nitrogen fertilizer. The first time was Qi seedling fertilizer, which was carried out after emergence, applying urea 90-120 kg per hectare. The second time is to raise seedling fertilizer, fixed seedlings or planting after opening ditches to withdraw application, per hectare application of compound fertilizer 225-300 kg. Re-application of fertilizer during flowering and fruiting period, human feces dilute 30000-45000 kg, or nitrogen, phosphorus and potassium compound fertilizer 300,450kg. In the middle and later stage of growth, a small amount of topdressing should be applied for many times to prevent plant premature senescence.

5. Plant adjustment

Twisting branches can be adopted, that is, the petiole is twisted into a curved sag to control vegetative growth. In the middle and later stage of growth, the timely removal of the old leaves below the tender fruit can not only improve the ventilation and light transmission conditions, reduce nutrient consumption, but also prevent the spread of diseases and insect pests. Picking the heart of the young fruit harvester at the right time can promote the lateral branch fruit and increase the early yield. Picking the heart in time can promote the ripening of the fruit, make the grain full and improve the seed quality.

6. Harvest

Coffee sunflower blossoms and bears pods from sowing to plant height of about 30 cm and true leaves of 7-9, and it takes about 60 days for the first tender fruit to form. After that, the whole harvest period is as long as 60-100 days, and the whole growth period can reach about 120 days, or even longer.

Second, in which season okra is usually planted?

Okra likes warmth and is afraid of frost. the whole growth period should be arranged in the frost-free period, and the flowering and fruiting period should be in the warm and humid season. Cultivation in open field, sowing in April-June and harvest in July-October in the north and south of China. The seeds in North China are usually sown from mid-late April to May. Seedlings are raised in solar greenhouses and plastic greenhouses commonly used in cold areas in the north, and then planted in the field after frost in early spring and evening.