Detailed Explanation of Water Spinach Planting Methods and Technical Key Points
Water spinach likes clayey and sufficiently fertile soil, prefers high-temperature and high-humidity environments, is not tolerant of frost, and is not cold-tolerant. Before sowing, soak the seeds in 50-60 warm water for 15-30 minutes, place them in a greenhouse environment to promote sprouting, and sow once they begin to turn white on a large scale. Plant at a reasonable density; when it grows to 5cm, it needs watering and fertilizing to keep the soil moist.
1. Environmental Requirements
Water spinach is not strict about soil requirements, but it likes clayey and sufficiently fertile soil and prefers high-temperature and high-humidity environments; it can withstand high temperatures of 35-40 degrees. The optimal growth temperature is 25-30 degrees. It is not tolerant of frost; when exposed to frost, the stems and leaves will wither and die. It is not cold-tolerant; growth stops below 10 degrees. It likes environments with higher air humidity; if the environment is too dry, the fiber increases, the stems become thick and old, and the eating quality decreases.
2. Sowing
The seed coat of water spinach is relatively thick and hard. If sown directly, germination will be extremely slow, affecting the planting cycle, and if there is long-term rainy weather, it may cause the seeds to rot. Therefore, before sowing, soak the seeds in 50-60 warm water for 15-30 minutes. Stir during soaking to avoid scalding the seeds, then soak in clean water for one day, then place in a greenhouse environment to promote sprouting. During sprouting, rinse once a day until they begin to turn white on a large scale, and then they can be sown. They can be broadcast sown or sown in rows, with a seeding rate of about 2 kilograms per mu. After sowing, cover with a layer of fine soil and water to maintain soil moisture.
3. Field Management
Water spinach has a relatively large demand for fertilizer and water during growth, so apply sufficient base fertilizer at planting. When it grows to 5cm, it needs watering and fertilizing to make it grow quickly; afterward, water frequently to keep the soil moist. In addition, after harvesting, fertilize in time as well, so that it can regrow a second time. When fertilizing, mainly use nitrogen fertilizer. In addition, although water spinach can be planted at a certain density, if it is too densely planted, it will not be able to receive light, and may rot.