Spring spinach sowing in the early spring, the average mu income of more than 1,000 yuan. After the spinach is harvested, the lower pods can be sown with summer corn, summer peanuts and other grain and oil crops or other over-summer vegetables, increase the multiple cropping index, and increase mu benefits. Here are the highlights of the high-yield cultivation of spring spinach for your reference.
First, choose the best species
Planting spring spinach should be selected from late-season spinach varieties with strong cold resistance, strong disease resistance, and high yield.
Second, the soil fertigation
The plots planted with spring spinach should be selected from the plots that have not been planted with cruciferous vegetables, or plots of other field crops. When the soil is thawed in early spring, and when it is scattered, the 2000 kg of urea is used for urea and urea. 25 kg of potassium fertilizer and 10 kg of potassium fertilizer are used as the base fertilizer, then shallow ploughing, leveling the ground, making it flat and preparing for sowing.
Third, seed processing
The temperature of spring spinach sowing is still relatively low. If seeds are not soaked and germinated prior to sowing, it will take more than half a month after sowing to produce seedlings, which will shorten the leaf growth period and thus affect the yield. Therefore, the method of soaking and germination is often used in production. Soak the seed in warm water for 5-6 hours, remove it and put it on the surface at 15°C-20°C for germination. Wash it once daily with warm water for 3-4 days. Can bud, ready to broadcast.
Fourth, timely sowing
In the early spring, when the surface of the soil is thawed 4-6 centimeters, it should be sown as early as possible, so as to “top seedling plantingâ€, the average temperature rises to 4°C-5°C on the same day. In the central region of our province, generally 3 Sowing is appropriate in the middle of the month. The method of sowing is more used. The growth period of spring spinach is short and the plants are small. The sowing rate per acre is 5-6 kg. When sowing in early spring, it is best to use wet sowing ("falling water sowing"), first filling the bottom water, soaking the seeds after water soaking, then covering the soil, about 1 cm thick. 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
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 or 20 kilograms of nitrogen and potassium fertilizers were applied per acre with water. The subsequent watering is based on the conditions of the climate and soil moisture. 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
In the south-central part of the province, harvesting can generally be carried out in about 40 days after sowing, and the harvesting standards can be achieved from late April to mid-May. The early harvest yield is low, and the harvesting can easily cause seizures. Reduce the commercial quality of spinach, affecting returns, so it should be timely harvest. The average yield per mu is 1500-2000 kg.
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