Winter Spinach Cultivation Technique

1. Variety selection. Varieties should be selected for disease-resistant, high-yield, and cold-resistant tip leaf types such as spinach 9 and spinach 10.

2. Soil preparation. After harvesting the former crop, 5000 kilograms of high-quality rotten farmyard manure and 30 kilograms of ternary compound fertilizer are applied per acre, and 20-25 centimeters of plowing are used. The ravine is practical, the ravioli, and the lotus root are 1.5-1.7 meters wide. Drilling can be carried out at a distance of about 10 centimeters, with a depth of 3 to 4 centimeters, evenly spreading the seeds, then covering the soil and watering.

3. Soak germination. Before sowing, soaking in cold water for 12 hours, and then in the refrigerator at 7°C~8°C for the lowest layer for 24 to 26 hours, then germination at 20°C~25°C, or soaking with 0.1% potassium nitrate. 16 to 20 hours, when the seeds exposed white sowing.

4. Suitable sowing. Spinach market before and after the Spring Festival, the best sowing date is mid-October. After sowing, in order to ensure the spinach seedlings and promote growth, thin soil cover species should be used to maintain soil moisture.

5. Cultivation management. After sowing, the greenhouses are buckled. Generally, two waters are seedlings, and water is poured 10 days after emergence. After the two true leaves of spinach are unfolded, the number of leaves, leaf weight and leaf area increase rapidly, and 3 to 4 leaves maintain the soil moisture. , Ammonium bicarbonate top 25 kg per acre, shallow dip once, between the dense seedlings, appropriate water control. In November, "Snow" was concerned about insulation before and after, at noon for air release. In order to be listed in advance, a small shed can be set up during the winter season. After late January, spinach begins to turn green, and it is necessary to gradually release the wind. The temperature of the greenhouse is not more than 25°C, the temperature is high, the spinach plants are thin, the leaves curl, the quality is reduced, and the yield is reduced. And pay attention to pouring back to Qingshui, with the water top 25 kg of ammonium bicarbonate, after every 7 to 10 days pouring a water, and then topdressing once.

6. Timely harvest. One week before spinach harvest, it was well ventilated, which promoted the thickening of the leaves and the green color of the leaves, which increased the yield and quality. When the price of spinach is high before and after the Spring Festival, it will be sold and sold at a high price.

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