The spinach is believed to be a vegetable that many people like very much, and it can grow after picking the upper part of the stem of the spinach plant. The spinach is native to tropical and rainy regions of our country and is nutritious and delicious. The following small series will explain the technical points of planting management of water spinach.
First, the growing time of the spinach
The spinach prefers areas with high temperature, humidity and sufficient light, and the seeds will germinate when the temperature reaches 15 °C. Therefore, the spinach is generally planted in April-July, while the northern region is generally planted in June-August.
Second, the requirements of the environment of the spinach
The demand for soil in the water spinach is not strict, but the soil with heavy weight and fertility is preferred, and the water spinach can withstand the high temperature of 35-40 ° C. Its optimal growth temperature is 25-30 ° C, but the spinach is not resistant to frost.
Third, the sowing of the spinach
The seed coat of the spinach is thick and hard, and seed treatment is required before sowing. Soak the seeds with 50-60 warm water for 15-30 minutes before sowing. Stir them during soaking to avoid scalding the seeds, then soak them in water for one day, then put them into the greenhouse to germination, and rinse them once a day until the large area begins. When it is white, it can be sown. It can be spread or broadcasted, coated with a layer of fine soil after sowing, and watered to maintain soil moisture.
Fourth, the field management of the spinach
The demand for water and fertilizer in the growth of water spinach is relatively large. In addition to applying the base fertilizer at the time of planting, when the seedlings of the water spinach grow to 5 cm, it is necessary to start watering and fertilizing to allow rapid growth. In the later stages of growth, watering should be carried out frequently to keep the soil moist, so that the water spinach will not wither. Moreover, even if the spinach is harvested, it must be applied with certain fertilizer water, because this allows the spinach to grow stems and leaves again, and the fertilizer is mainly nitrogenous.
In addition, although the water spinach can be densely planted, the density should not be too large, because the density of the water can greatly reduce the light transmittance between the spinach plants, and it is also possible to make the water spinach rot, which is a must for all growers.
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