Cultivation techniques of Japanese parsley

First, sowing and raising seedlings. During the sowing period, the open-field sowing of clover (Japanese cress) in spring should be carried out when the ground temperature is more than 5 ℃, and the sowing in solar greenhouse is not limited by the season, and the film should be fastened and sown in mid-late October. two。 The selected land preparation clover prefers fertile loam or sandy soil with a pH value of 5-7. Before sowing, the soil is deeply turned over about 30 cm, and about 3000 kg of mature high-quality farm manure is applied per mu of land. After mixing well, the border is made into a low border with a width of 1.2m, a depth of 15cm and a length of 10-20m, and the ridge is 30cm wide. 3. The sowing method and seed amount will rake the border surface flat, then pour enough bottom water, mix the seeds with fine sand or fine soil according to 10 grams per square meter, and sow them evenly. After sowing, the soil thickness is 0.3-0.5 cm. 4. Seedling management the cotyledons of clover were unearthed 10 days after sowing, then the open sowing should choose cloudy days or remove the plastic film in the evening, and then water properly according to the weather conditions; sowing in solar greenhouse should manage the greenhouse temperature, the daytime temperature should be kept at about 20-25 ℃, and the night temperature should be no less than 5 ℃. When the first true leaf is unfolded, the seedlings are spaced at a distance of 2 cm, and then watered, and then properly controlled to refine the seedlings. After the third true leaf was unfolded, it was transplanted and planted.

Second, annual cultivation techniques in solar greenhouse 1. The land preparation is about 30 cm deep, 3000 kg of farm manure is applied per mu, and four long ridges are made along the east-west length direction. The front foot of the shed is 50 cm wide and the back wall is 30-40 cm wide. The middle 3 ridges are 30-40 cm wide and the bed width is 1.5 meters. Two micro-spray water supply pipes are installed in the greenhouse along the east-west direction, with a height of 35-40 cm from the ground. two。 Transplanting and management, rake the border surface flat, according to the hole distance of 10 cm × 10 cm, 3 plants per hole for transplanting. After planting, start the water pump to spray water, and raise the temperature of the greenhouse appropriately, about 25-28 ℃ in the daytime and 20 ℃ at night. The seedlings were slowed down after 2 days, and the temperature was reduced at this time, which was controlled at 20-25 ℃ in the daytime and 10 ℃ at night. Clover celery likes the humid environment, spraying water every 5 days or so, and applying fertilizer and water every 15 days. In order to improve the quality of vegetables, light should be properly controlled to achieve the purpose of softening cultivation. In winter and spring, the inner sunshade net (shading light at 50% Mel 60%) is used to shade the light; in summer and autumn, Liso spray shading is used to cool the temperature. After each harvest, 1-2 kg of organic fertilizer was applied per square meter, and the time interval of topdressing was the same as before. 3. When the height of the seedling is about 30 cm, cut flat with a knife 2-3 cm away from the base of the plant, be careful not to cut off the growing point, and the stubble should not be too high, otherwise it will affect the yield and the growth of the next crop.