Okra is perennial in the north of the Yangtze River, part of the ground withers in winter, and new shoots sprout in the next spring. It originated in Africa and was introduced into China by India in the early 20th century. It is distributed in Jiangxi, Guizhou, Guangxi, Guangdong (including Hainan Island), Jiangxi Pingxiang, Yunnan Wenshan, Xishuangbanna, Lincang, Nujiang, Baoshan and other prefectures. Low hills, grassy slopes, open lands, sparse pine forests or dry barren lands with an altitude of 900-1600 meters are common. Pingxiang, Jiangxi Province is the most abundant, and also distributed in Vietnam, Laos, Cambodia, Thailand, Myanmar, India, Malaysia and Australia. In China, Hebei, Shandong, Jiangsu, Zhejiang, Fujian, Taiwan, Hubei, Hunan, Guangdong, Hainan, Guangxi, Yunnan and other places introduced cultivation.
The planting time of okra okra is from March to April. The seeds are mainly planted in holes, covered with soil for 2cm. They germinate 7 to 10 days after sowing, and germinate quickly and orderly. Okra is suitable for planting on the land with deep soil layer and loose and fertile soil layer.
Okra seedlings okra knowledge expansion 1, like warm climate, not cold, with deep fertile soil, sunny land to plant. Okra is usually sown in March, and can germinate after 3-5 days. Its seedling period will last for about 40 days, and it will begin to bear fruit in November. The growth cycle is generally more than 7 months.
2. Okra likes a warm and sunny environment. Its cold tolerance is slightly different due to different varieties. Hibiscus okra and hibiscus multiflora can survive in the open in Beijing, while red okra needs to be covered and protected for the winter, or the perennial roots should be dug out.
3. Okra is stored in an unfrozen cold room for the winter, so they are often planted in large pots. However, the Yangtze River basin can survive the winter in the open. The soil requirements are not strict. But not drought resistant.
4. The propagation of okra is mainly in individual plant, and can be carried out in spring and autumn. It can also cut the old branches in summer. Its seed coat is very hard. If the seed is sown, it should be soaked in concentrated sulfuric acid for 5 minutes in advance, and then washed with water before sowing. Otherwise, the embryo and germ cannot break through the seed coat.