Okra likes warmth, afraid of frost, the whole reproductive period should be arranged in the frost-free period, flowering and fruiting period should be in the warm and wet season everywhere. Open field cultivation, north and south of more than 4~June sowing, 7~October harvest. North China is generally sown in mid to late April to May. Northern cold areas commonly used in solariums, plastic greenhouses concentrated seedlings, to be early spring after the late frost, and then planted in the field.
The okra takes about 60 days from sowing to the formation of the first young fruit. Later, the whole harvesting period is as long as 60~70 days, and the whole life span can be up to about 120 days.
Okra planting season
In the Yangtze River Basin and South China, okra can be cultivated in spring, summer and fall, but the spring sowing is the main. sowing in March-April, harvested in May-September; sowing in May-June, harvested in July-October; sowing in July, harvested in September-November. Early sowing should be used in greenhouses, small arches or ground cover cultivation, the season in the open ground cultivation.
Okraut, also known as kidney grass, okra and goat's-horn beans, etc., belongs to the mallow family, annual herbs. Okra is a nutritious health care vegetable, mainly with young fruits for consumption, with the effect of stomach and intestines. In addition, the flowers, seeds and roots can be used as medicine, on the evil sores, carbuncles and boils have healing outside. Okra, alias, okra, also known as monocroton. Mallow family, a genus of annual herbs. It is native to Africa, the Middle East, India, Sri Lanka and Southeast Asia and other tropical areas, is widely cultivated one of the main vegetables. The tender flesh of the young fruits of okra is tender and lubricated, and can be used for stir-frying, cooking, and cold.
In addition to the young fruit edible, its leaves, buds, flowers can also be eaten. The seeds of okra contain more potassium, calcium, iron, zinc, manganese and other elements. Its dry seeds can also extract oil and protein. It can also be used as a substitute or additive for coffee. Its flowers, seeds and roots can be used as medicine. Malignant sores and tumors have curative effects. Okra is rich in nutrients, the young fruit contains a large number of viscous smooth juice, with a special flavor. Its juice is mixed with pectin, cow's milk polysaccharide and ala-polysaccharide and so on. Its pectin is soluble fiber, in the new concept of modern health care is extremely important. Where regular consumption of it has a healthy stomach and intestines, nourishing the efficacy of yin and yang.
It is determined that each hundred grams of young fruit containing protein 2.5 grams, 0.1 grams of fat, sugar 2.7 grams, cellulose A660 international units. Vitamin B1, 0.2 mg, vitamin B20.06 mg, vitamin 44 mg, calcium 81 mg, phosphorus 63 mg, iron 0.8 mg, is an ideal high-grade green nutritional health care vegetables of the new century. In recent years in Japan, Taiwan, Hong Kong and other countries and regions in the market to become a popular vegetable, known as the king of vegetables.
Okra planting method
Okra, also known as kidney grass, okra, goat's-horn beans, etc., for the mallow family okra annual herbaceous plants, native to the African tropics, introduced into our country in recent years, there are a small number of cultivation throughout the world. Okra to young fruit for consumption, rich in protein, free amino acids and minerals, the fruit also contains by pectin and polysaccharides and other viscous substances, is a nutritional health care vegetables, with the promotion of gastrointestinal peristalsis, to prevent constipation effect. It especially has the function of nourishing yin and Yang, some coastal areas in the south is known as no toxic side effects of "plant Viagra". Okra has cold, fried, fried and soup and other ways to eat, by some high-end hotels and hotels as a nutritious specialties launched by the people's favorite. Okra's flowers, seeds, roots can be used as medicine, for sores, carbuncles have therapeutic effects, seeds fried and ground can be used as a substitute for coffee. Okra is a low-energy food, which is one of the good diet food. The technology of growing okra is introduced as follows:
1. Okra root system is developed, deep into the soil, it is appropriate to choose a deep layer of cultivation, fertile soil, good light, drainage and irrigation convenient loam or clay loam plot of land. Before sowing, the land will be y ploughed 20-30 cm, full base fertilizer, per mu of rotting organic fertilizer 3000 kg or so, 15-20 kg of diammonium phosphate, 100-150 kg of grass ash or 15 kg of potassium sulfate. Rainy areas in the south will be made into 1.2 meters wide raised beds, 40-60 cm deep drainage ditches between the beds, the north using flat beds or high ridges in two forms of cultivation. The south can be sown from February to September, and the north is sown in early to mid-May. Because of the slow growth of okra in the early stages, to July only began to harvest, in order to improve the utilization of land, can be intercropped with other short fertility vegetables and crops.
2. Sowing. Before sowing with 20-25 ℃ warm water to soak the seeds for 12 hours, and then wipe dry, in 25-30 ℃ under the condition of germination for 48 hours, to be half of the seed white can be sown. In the pre-established bed according to the row spacing 80 cm, plant spacing 50 cm dug holes, first watering the bottom water, each hole sowing 2-3 seeds, mulch 2-3 cm. Each mu can be planted 2000 holes, the amount of seed 0.5 kg or so.
3. Field management. The first time the first true leaves unfolded for the first time between seedlings, to remove the disease residual weak seedlings. When there are 2-3 true leaves unfolded when the seedling, each hole to stay 1 strong seedling. After fixing the seedlings should be timely plowing, in order to increase the ground temperature, and play the role of moisture conservation and weed control. Afterwards, it should be frequently plowed and weeded, and cultivate the soil to prevent the plant from falling over. Okra is a humidity-tolerant plant, the plant is tall and requires more water, in the seedling and seedling should be watered 1 time each, flowering and fruiting period should be watered frequently to keep the soil moist. Especially in July-August hot weather at the peak of fruit picking, water demand, more should maintain the water supply. However, when there is too much rain, it should be drained in time to avoid waterlogging. In addition should also be combined with watering in the seedling, fruit and fruiting period in three installments per mu of urea 15 kg or human urine 500-600 kg, in order to promote fruitful production.
4. Harvesting and pest control. When the fruit grows to a length of 5 centimeters or more, it can be picked and marketed, generally per mu can be harvested 5-7 centimeters of young fruit 1000 kg, 7-10 centimeters of young fruit 1500 kg. There are fewer pests and diseases of okra, mainly virus diseases and cotton bollworm, bridge-building bugs, aphids, thrips and so on. Virus disease is mainly preventive; bollworm and bridge-building bugs mainly harm the fruit, available 50% phoxim emulsion 1500-2000 times spray; aphids and thrips mainly harm the fruit pods, available 40% oxolinic acid 1500 times spray. The last thing to be reminded is that okra is a rare vegetable, and it is important to investigate the market before planting.