What are the precautions for growing mint?
What should be noted when growing mint? Please provide guidance. The following points should be noted when growing mint, for reference: 1. Field selection, land preparation and fertilization. For mint cultivation, choose a plot with fertile soil, flat terrain, good light and convenient transportation. Before sowing, plow deeply and apply 1500-200... jin of high-quality farmyard manure per mu.
What should be noted when growing mint? Please provide guidance.The following points should be noted when growing mint, for reference:
1. Field selection, land preparation and fertilization
For mint cultivation, choose a plot with fertile soil, flat terrain, good light and convenient transportation. Before sowing, plow deeply and apply 1500-2000 kg of high-quality farmyard manure and 50 kg of superphosphate per mu.
2. Sow at the right time
In Hui County, mint can be sown in winter and spring, with early February and early November being the best sowing periods. Drilling is the better sowing method, with a row spacing of 25-30 cm and a plant spacing of 8-10 cm. The sowing depth is 12-15 cm. After sowing, rake level and press firm. If the soil is dry, water once to settle the roots. Keep about 30,000 plants per mu. When there are enough rhizomes, whole-rhizome sowing is recommended, generally using 80-150 kg of seed per mu.
3. Field management
① Thinning or transplanting: When the temperature stabilizes above 10°C and the mint grows to more than 7 cm, adjust the density and move overly dense seedlings to sparse areas for planting.
② Remove impurities and keep pure stock: When the mint has grown enough to show the characteristics of this variety, manually remove wild plants, mixed plants and seedlings that do not have these characteristics. The earlier this work is done, the better. It should be done after rain and repeated several times. If the density is too low after removal, transplant seedlings to fill the gaps.
③ Cultivation and weeding: From emergence until the rows close, carry out 2-3 rounds of cultivation and weeding. Before harvesting, thoroughly remove weeds from the field to prevent them from being brought into the still and affecting the quality of the oil.
④ Reasonable fertilization: The fertilization principle for mint is to apply a light fertilizer to promote seedlings, a heavy fertilizer at the branching stage, and a skillful fertilizer to protect the leaves. Generally, apply 2.5 kg of urea per mu at the seedling stage; at the branching stage, apply 1000 kg of human and livestock manure or 10 kg of diammonium phosphate and 10 kg of potassium sulfate; one month before harvest, apply 10 kg per mu of a ternary compound fertilizer such as Sakacifu or Dasanyuan.
⑤ Irrigation and drainage: Drain promptly when there is too much standing water, and irrigate promptly during dry weather.
4. Harvesting:Mint is harvested twice a year. The first cut is between Minor Heat and Major Heat; the second is between Cold Dew and Frost Descent. When more than 10% of the plants in the field are flowering, the weather has been clear for several consecutive days, the temperature is relatively high and the ground is dry, harvest with a sharp blade at ground level between 10 am and 3 pm each day. Cut off the lower leafless stems, spread the plants on the ground to dry until 60-70% dry, and then distill them for oil.
5. Cultivation and management of the second-cut mint
After the first-cut mint is harvested, promptly spray once with a 300-fold dilution of 60% butachlor emulsifiable concentrate, then apply 15 loads of dilute manure and 25 kg of quick-acting phosphate fertilizer per mu, and then break up the soil between the wide rows and cover it over the small rows after harvesting to promote the growth of the second-cut mint. Other management measures are the same as for the first cut.
6. Prevention and control of pests, diseases and weeds
Because of mint's own repellent effect, there are relatively few pests and diseases. Snails and cutworms can be caught by hand, or controlled with chemicals such as trichlorfon and dichlorvos. Aphids can be controlled with kangyawei and dimethoate, bridge worms with trichlorfon, and rust and powdery mildew with triadimefon and amobam. Grass-family weeds can be controlled with butachlor and haloxyfop, and broadleaf weeds with bentazone (paicaodan) and chlorotoluron.
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