Spring spinach cultivation technology
The temperature rise is now a good time for spinach. The whole spinach is green, tender and delicious, nutritious, rich in vitamins and minerals, and is a popular vegetable. The spring spinach planting management technology is briefly described as follows: Pacific Saury,pacific saury fish,saira fish,sauries fish Zhoushan Boda Aquatic Products Co.,Ltd , https://www.baida-aquatic.com
First, sowing time
Sowing is generally conducted from early March to mid-April. In early spring, when the soil surface is thawed 4-6 cm, it can be sowed.
Second, species selection
Planting spring spinach should choose spinach varieties with late leafing, leaf hypertrophy and high yield. Sharp leaf varieties are easy to twitch and are not suitable for spring sowing.
Third, the site preparation
The plots for planting spring spinach should be selected from plots of land that has not been planted with cruciferous vegetables or other field crops. The base fertilizer was used as a base fertilizer, and 30 kg of nitrogen and potassium fertilizers were added, and then shallow ploughing was performed to make a flat rice plant with a width of about 1.3 meters. In the first year of the year, some people did a lot of work and made a wind storm ready for broadcast.
Fourth, sowing
In the production often used soaking germination method, the first seed soaked with warm water for 5-6 hours, remove and put on 15 °C -20 °C temperature germination, washed once daily with warm water, 3-4 days to bud . Sowing is generally adopted sowing method, the growth period of spring spinach is short, the plants are small, the sowing volume increased to 5-7 kg per mu. When sowing in early spring, it is best to use wet sowing ("falling water sowing"), first filling the bottom water, and sow the seeds after the water infiltration, then cover the soil to a thickness of about 1 cm. Because there is a layer of loose soil cover on the surface, it not only reduces the evaporation of soil moisture, but also has the effect of insulation. Seeds are in a warm, moist and well ventilated environment and can emerge earlier.
V. Field Management
The early spring spinach should be covered with plastic film insulation, which can be directly covered on the surface. After emergence, the film should be removed or replaced by a small arch. The small arch canopies cover the night cover and the clear rain cover can make the seedlings more visible. Spring spinach sown by wet sowing method can generally be used to pour the first water when the seedling grows 2-3 true leaves due to sufficient soil moisture. From the pouring of the second water, 15 kilograms of urea is applied per acre with water, or 20 kilograms of nitrogen and potassium fertilizer are applied per acre, and in particular, nitrogen fertilizer can be topdressed for 15 days before harvest. Watering depends on the climate and soil moisture conditions. The principle is to keep the soil moist. The growth period of spring spinach is short, and in the absence of water and fertilizer, it is easier to twitch prematurely and reduce the yield and quality.
Six, timely harvest
Spring spinach should be harvested and marketed in time according to growth conditions and market demand. Generally, it can be harvested 40-50 days after sowing.