1. The selection of suitable varieties for overwintering spinach cultivation will be easily affected by the low temperature in winter and early spring. After the spring is opened, the general varieties will be easily convulsed and reduce the yield and quality. Therefore, wintering cultivation should use strong middling and late-maturing varieties with strong winter, late bolting, strong cold resistance, and high yield. Such as the selection of round leaf spine, late round leaf spine, Hua Bo No. 1, Liaoning Yuan Ye spindock and other varieties.
2. Select sites for cultivation In the bases that meet the conditions for the production of pollution-free vegetables, choose leeward sunny, fertile loose soil, good drainage conditions, and neutral smiling acidic soil. After harvesting in front of the crop, the garden shall be cleaned in time, combined with ploughing of the land, and sufficient basal fertilization will be applied. In general, 4000 to 5,000 kilograms of decomposed organic fertilizer is applied every 666.7 square meters. The spinach growth period is longer. If the basal fertilizer is applied insufficiently, the plant growth before winter is weak, which is not conducive to safe wintering. When the growth resumes the following year, prone to convulsions. The entire surface is flat and thin, making it 1.2 to 1.5 meters wide.
3. The proper sowing, seedling planting sooner or later has a close relationship with the ability of seedlings to overwinter, harvest time and yield, not too early nor too late. Spinach has 4 to 5 leaves before freezing. Overwintering spinach is sown in mid-to late October and early November. At this time the climate is cool, suitable for spinach germination and emergence, generally do not need to sow the seeds, but sowing seeds and wet seeds. When the weather is sown at the time of sowing, it is necessary to pour the rammed earth into the bottom water first. If the weather is moist, there is no need to bury the bottom water. After sowing, gently comb the topsoil so that the seeds fall into the earth seams, and pour a layer of rot thick contaminants again. Pay attention to keep the soil moist until it is young. If sowing is late and the temperature is low, the plastic film or shade net shall be used to cover the seedlings to promote seedling emergence, and the film shall be removed after emergence (net). For each 666.7 square meters, the seed amount is about 4 to 5 kilograms, and the seeding rate for late planting is appropriately increased.
4. Cultivation Management After cultivation, if the soil is dry, a small amount of water can be poured to keep the soil moist. When 3 to 4 true leaves are used, water can be properly controlled to promote the development of the root system to facilitate overwintering. If the seedlings are dense, 2 to 3 true leaves can be seedling once, and the seedling distance is 3 to 5 cm. This period can be based on seedlings and weather topdressing water and fertilizer, mainly to human fecal urine, promote seedling growth. If locust damage occurs, it should be sprayed and controlled in time. In frost and ice and snow weather, pay attention to timely covering film and shade net, floating surface cover and small arch cover. It should be noted that over-winter spinach cultivation base fertilizer should be given enough, apply more organic fertilizer, less inorganic fertilizer. Because the sunshine is weak during the winter, the leaves accumulate too much nitrate. For the winter of spiny seedlings, after the temperature rose in the spring, select the sunny and timely application of decomposed faeces, and promote the growth of strong, prevent early bolting.
5. Harvesting can be harvested in batches according to the growth conditions and market demand, and can also be harvested in different times. For the overwintering preserved garden spinach that is about to be harvested and listed, it is particularly necessary to pay attention to doing a good job of preventing cold and freezing, so as to avoid freezing the leaves and seriously affecting the commerciality, yield and quality of spinach. Take the time to meet the needs of the market before and after the Spring Festival.
Size: 380/50g
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