Export cabbage cultivation technology

First, the selection of varieties must use Japanese varieties: the beautiful number two, seven grass. Second, the determination of the sowing period The sowing period of the beautiful appearance No.2 is: July 20th - August 5th sowing time of the seven grasses: August 1-20th Three, nursery methods: 1, Putian preparations: a: base fertilizer: 50kg of compound fertilizer per mu, applied during the last rotary tillage. b: Width: 170cm, including a groove width of 40cm. c: Mechanical operation steps: Before the machine works, we must be clear about field weeds, debris, and front debris. Then, spin → → basal fertilizer → re-rotate → flat → open ditch. d: Artificial soil preparation: After the completion of trenching, organize the labor force to manually level the surface with nails. e: pouring enough water: sowing the soil before planting as the solemn water, if the soil moisture is insufficient, it must be poured with a bucket of water, then before sowing. 2. Seeding: a: Determine the seeding amount: Use 20-25g per acre field, transplant 15 acre per acre, and then the sowing amount per acre is generally 300-375g. b: sowing method: slotting on demand, slot distance 8-10cm, slot depth 0.5-1.0cm, then on-demand, a hole one, hole distance 6-8cm. After sowing, the seeds are covered with fine mud or hoe, 0.5 cm thick. c: Covering the shade net: After covering, cover the shade net (double layer) immediately to keep moisture. 3, Putian management: a: timely lift the shade net: When the emergence of 60-70%, should be promptly lifted shading net shading, until the two-leaf as one can be removed. b: Weeding in time. c: Use of Miao Fei: Applying 5 kg of urea at the time of two-leaf and one-heart, the Miao Miao should be determined depending on the weather and soil moisture. Generally, it is selected before cloudy or rainy weather, evenly spread to prevent burning seedlings. d: Pest control: Seedling control three times. For the first time, when the whole seedlings were uncovered, the control of the shading nets was once controlled by the extermination method of 50-75 g/mu + thiophanate-methyl 600 times. The second time, from the first prevention and control 7-10 days after the control, with Sita Bao 40ml/mu + thiophanate 600 times prevention and treatment methods. The third time, he got up to the potion, prevented and controlled the day before transplanting, and was controlled by the method of prevention and control of Heshun Sanling 60ml/mu + Dasheng 500 times. 4. Order: 30 days. 4. Daejeon Management 1. Preparation of Daejeon: Plowing → Spinning → Fertilizers {50kg (25% compound fertilizer) + 50kg carbon amine}/mu → re-spin → flatten → open ditch. The width is 180cm (including the ditch), the width of the ditch is 25cm, the ditch depth is 25cm, the ditch is 20m, and the ditch is 30-35cm deep. 2. Density: One species of three lines, the beauty number 2 is 3000-3200 strains/mu, the plant spacing is 36-38cm, the seven grasses are 2800 strains/mu, the plant spacing is 42cm. 3. Transplanting: Must be transplanted with soil. The soil moisture is not enough to be dredged and drought-resistant. It can be transplanted after 2 days. 4, top dressing: the principle of less N fertilizer, more phosphorus, potassium fertilizer. Miao Fei: 10 days after transplanting live trees, apply 7-8kg of urea. Hair fat: 15kg phosphoric acid diamine. Package heart fertilizer: 50-60kg compound fertilizer (25%). 5, pest control: Insect pests mainly beet armyworm, Spodoptera litura, diamondback moth, aphids and other four pests. The main diseases are Sclerotinia. Control methods: refer to the requirements of the pesticide control method. Control time: The best time to start 3rd instar is the hatching time. V. Harvest period The beautiful appearance 2 can be harvested about 85 days after transplanting, and about 7 crops can be harvested about 95 days after transplanting. 6. Harvesting Criteria for Exporting Cabbage: 1. Weight: 1.25-1.5kg; Diameter: 18cm2cm; 2. No pests, no soil, no broken leaves, fresh green leaves, fresh; 3. No pesticide residue Excessive standards.

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