Cultivation Techniques:
1 Select sowing: Winter wheat intercropping spinach, watering more often, the amount of food produced varies with the level of water and fertilizer. Therefore, the application of base fertilizer should be sufficient, the lyrical condition should be better when sowing, and the amount of wheat under the seed should be sown according to the conventional method. The sowing amount of spinach is generally 0.5 to 1 kg per 667 m2, and it is selected from cold-resistant, leaf-leafed, sharp-leaved spiny varieties such as Shandong Zhucheng spinach, Shenyang spinach, Tangshan beef tongue, and pig ears. Wheat is more resistant to water.
2 fertilizer and water management: before winter, wheat and spinach are poured enough frozen water, combined with watering to apply urea 5 kg per 667 square meters of spinach, to enhance the ability of antifreeze, and promote its early return to green. In colder winter wheat producing areas, it is also necessary to sprinkle a layer of grass ash or horse dung on the spinach bowl after pouring frozen water to make it safe for winter. After the winter is over, the soil is slightly frozen and spinach can grow. At this time, it is necessary to pour green water, and the yield of spinach that has poured back to Qingshui is about 1 times higher than that of green spinach that does not return to Qingshui. The area north of 37 degrees north latitude is watered in mid-April, combined with 3 to 5 kg of urea per 667 square meters of water, or about 5 kg of compound fertilizer such as diammonium phosphate.
3 Harvest spinach as soon as possible: Generally, the wheat is harvested in the early stage and the late harvest is not conducive to the high yield of wheat. Therefore, the harvest time of spinach should be earlier than late. Latitudes 37 degrees north of north latitude generally begin when spring spinach grows to 6 to 7 leaves, and can be used for sparse seedling harvesting methods, that is, large seedlings are kept in the spinach rows to retain the seedlings, which are collected before the wheat rises. Don't wait for the spinach to grow long enough to pick it up again. In order to spinach the morning market, spinach can be covered with plastic film to help increase spinach production and shorten the symbiosis period of wheat and vegetables. According to the test, spinach mulching can be listed for about 10 days or more in advance, and it can be fully harvested before the wheat rises, and it can increase the yield of spinach by 110-170 kg. The time for covering the plastic film is better when the average temperature on the winter day drops to 2°C, and the film is removed in the spring of the following year.
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