Technical specifications for leafy mustard cultivation

1. Variety selection Select disease-resistant, high-quality and high-yield, strong resistance, wide adaptability, suitable for fresh food and processing of large-leaf varieties, such as Longyan Oxtail, Bamboo Leaf Mustard, Yongding local mustard.

2. Seedlings can be sown in the cultivation season from August to November, and it is appropriate to sow in the season (mid to late September) with an average daily temperature of 20-25 ° C.

3. Nursery

â‘ Soil preparation. The seedbed preparation should be particularly fine, and the plots should be made of loose, fertile, convenient drainage and irrigation, and water and fertility. Apply 1500 kg of rotten organic fertilizer per acre seedbed, add 30 kg of ternary compound fertilizer (15:15:15, the same below), 1.5 kg of borax, and 5 kg of magnesium sulfate as the base fertilizer. plot. Each acre of field needs 5-7 grams of seeds and 10 m 2 of seedbed.

â‘¡Miao Miao Ding Miao. After emergence and time, seedlings are set when the seedlings grow 1 true leaf, leaving 1 seedling every 12-16 cm 2.

â‘¢ fertilizer and water management. Pay attention to watering after sowing, and often keep the soil moist. When the seedlings have 1 leaf, 400% to 500 kg of 4% thin rotten mature manure is applied per acre, and 500 to 600 kg of 0.1% urea solution per acre is applied to 2-3 leaves.

â‘£ Transplanting. 20-25 days after sowing, when the seedlings grow to 4-5 true leaves, the field should be transplanted with soil.

Colonization

â‘  Fertilize the land. Before the site preparation, apply 50-50 kg of lime on the acres. After turning the plow and tanning, it will be formed into a flail with a width of 120 cm and a height of 25 cm. 150 kg of rotten organic fertilizer, 40 kg of ternary compound fertilizer and borax 1.5 kg and 3 kg of magnesium sulfate were used as the bottom fertilizer, and the soil was fully mixed before transplanting and planting.

â‘¡ Reasonable dense planting. Double-row planting is adopted. The planting distance is 35-40 cm in autumn and 2800-3200 plants per acre; the planting in winter and spring is 45-50 cm and 2200-2400 plants per acre.

5. Field management

â‘ Cultivation and weeding. After the seedlings were slow-middled, weeding and weeding were carried out in time, and before and after the ridge closure, the middle-tilling was performed. Cultivation should be shallower and deeper to avoid root injury.

â‘¡ Water management. In the early stage, the acupoint should be kept moist, and watering should be less when there is less rain, and drainage should be done in time to prevent the roots.

â‘¢ Topdressing. The top dressing is mainly nitrogen, and an appropriate amount of potassium fertilizer is added. After planting and re-greening, the seedling fertilizer was applied, and 1 kg of 1% urea solution was poured into each hole, once every 7 days, continuously for 2-3 times. From the beginning of the 9-leaf period to 15 days before the end of the harvest in the whole field, 2 kg of ternary compound fertilizer and 3-4 kg of urea were applied every 2 leaf acres.

â‘£ Pest control. Principles of prevention and control: prevention-oriented, comprehensive prevention and control, priority is given to agricultural prevention, physical prevention, and biological prevention, and scientific and reasonable use of chemical prevention and control to achieve the purpose of producing safe and high-quality mustard. Do not use high-toxicity, high-residue, high-bioconcentration, high-three-phase pesticides and mixed pesticides, which are prohibited by national regulations. The pesticide application strictly complies with GB4285 and GB / T8321 (all parts).

Agricultural prevention and control: choose good varieties resistant to disease; reasonable rotation, clean the countryside, reduce the number of pests and diseases; use 75% chlorothalonil wettable powder to dress seeds at 0.4% of the amount of seeds, or use 25% of toxic poison Wet powder is used for seed disinfection at 0.3% of seed amount.

Medicament control: Downy mildew can be sprayed with 53% Jinledomir 600-800 times liquid, or 2500 times 50% dimethomorph wettable powder, or 750 times 25% metalaxyl wettable powder. Once every 7 days, 2 or 3 times in a row; 72% agricultural streptomycin wettable powder 4000 times liquid for soft rot, or 4000-5000 times liquid phytomycin spray for powder rot; 10% anisole methyl ring for powdery mildew 1000-1500 times solution of azole water-dispersible granules, or 600-800 times solution of 75% chlorothalonil wettable powder, sprayed at the beginning of the disease, once every 7-10 days, continuously for 2-3 times; virus disease prevention and control can be found at Spray 20% virus A wettable powder 600 times before or after planting, or 1.5% plant disease spirit EC 1000-1500 times plus 0.2-0.3 mg / kg brassin; aphids can use 1.8% avermectin 3000 times , Or 10% 2000-2500 times solution of imidacloprid, or 3% acetamiprid 2000-3000 times solution spray control; cabbage worm, diamondback moth, beet armyworm, etc. with 5% fluazinam EC, 2500 times solution, or 5% fluorine 2,500 times solution of worm eye suspension, or 3000 times solution of 1.8% Avermectin EC, spray control.

6. Harvesting On the premise of 5-leaf transplanting, the sixth to nine leaves in the field are mostly ineffective leaves, which can be removed after yellowing naturally. When the leaf age reaches 15 leaves, the tenth one should be harvested. Leaves, one mature leaf will be harvested for each new leaf, and the whole plant will be harvested at the time of bud.

Disclaimer: Some articles on this website are transferred from the Internet. If third party legal rights are involved, please inform this website to deal with them. phone