Autumn refers to spinach planted in August and marketed from September to October. After "Liqiu" (early August), the temperature gradually decreased, the sunshine time gradually shortened, and the climatic conditions were favorable for vegetative growth and unfavorable for reproductive growth, so it was easier to achieve the goals of high yield and quality.

1. Cultivation time. Sowing in August, 30-60 days after sowing can be harvested in batches, and will be listed in the market from mid to late September to November.

2. Choose the right variety. After the autumn spinach is sown, the temperature in the early stage is high, and the temperature gradually decreases in the later stage. The light is sufficient, which is suitable for the growth of spinach, and the sunshine is gradually shortened, and it is not easy to develop through the stages. Generally autumn spinach does not simmer, so the choice of varieties is not very strict. For early sowing, because the temperature is still high, the heat-resistant round leaf spinach variety can be selected; when the sowing date is late, the round leaf spinach variety or the pointed leaf spinach variety can be selected.

3. Seed treatment. When sowing in August, the average daily temperature still has an effect on the germination of spinach seeds, especially when sowing in early August, the daily average temperature often reaches 24-29 ° C. If no soaking and germination is performed before sowing, the emergence is slow and the leaves grow Shorten the period, which in turn affects yield. Seed soaking and germination methods are the same as summer spinach.

4. Choose a place to play. At the bases that meet the conditions for the production of pollution-free vegetables, the soil is selected from Xiangyang, loose and fertile, water and fertilizer, good drainage and irrigation conditions, and neutral slightly acidic soil. After the previous stubble is harvested, plough the soil deeply, remove the residual roots, and fully roast and bleach. When preparing the land, apply 3000-4000 kg of cooked organic fertilizer and 100 kg of lime every 666.7 square meters, and then level the surface of the soil to make it flat or high.畦 Width is about 1.2-1.5 meters.

5. Sowing. Spinach is generally broadcast live and is mainly broadcast. Generally from August to September, it can also be planted in stages in advance or in July or delayed to early October. Seeds can be sown, or seeds can be soaked with well water for about 12 hours, then germinated in wells or air-raid shelters, or treated in refrigerators or freezers at low temperatures around 4 ° C for 24 hours, and then at 20 ° C-25 ° C Promote germination under the conditions of germination and sow after 3-5 days. Water the ground before sowing, gently comb the rake topsoil after sowing, so that the seeds fall into the soil gap, and cover with straw or cover the shading net with a small arch or flat shed to keep the soil moist to facilitate unearthing and prevent high temperature and heavy rain. Scour. Keep the soil moist often, and the seedlings will be ready after about 6-7 days. Due to the hot and dry autumn climate, heavy rains, poor growth, and often dead seedlings, more seeding is required, with 5-6 kg of seeds per 666.7 square meters. In the later period, the temperature gradually decreases, the emergence rate is higher, and the seeding amount can be reduced to 3.0-3.5 kg.

6. Cultivation management. Autumn spinach seedlings have high air temperature and ground temperature during the growth period. Watering and watering should be carried out frequently to keep the soil moist and reduce the ground temperature to provide good environmental conditions for seedling growth. The early growth of autumn spinach is in high temperature and dry weather. After the true leaves are grown, light manure water should be poured in time. Later, as the plant grows and the temperature decreases, the concentration of topdressing is gradually increased. But it should be applied when the soil surface is dry. If the soil is wet, spinach grows slowly and is easy to breed diseases. After 2 true leaves, pull up dense seedlings between the joints to remove weeds and pay attention to fertilizer application. Fertilization should pay attention to grasp the principle of light application, diligent application, first light and then thick. Apply more organic fertilizer in the early stage, that is, decomposed manure, especially the manure should be stopped 15 days before harvest, and the late stage of growth should be used, and the fast-acting nitrogen fertilizer should be applied 2-3 times in stages, each urea 66.7 square meters 5- 10 kg, promote leaf growth, increase yield and improve quality.

7. Harvesting. Autumn spinach has a short growing period and should be harvested and listed in time according to the growth situation and market needs. Generally, when the seedlings are 10 cm high, they will be drawn in batches and listed on the market. Pay attention to picking and listing spinach that is dense and about to be pumped. Usually, the fertilizer is topdressed once after * drawing and the garden is cleaned for the second time. When harvesting, remove the yellow leaves, wash them with water, and tie them into 250-500 grams. Autumn spinach generally yields 3000-4000 kg per mu, and high yielders can reach 5000 kg.

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