1. Choose a thoroughbred. Peppermint and summer breeders should choose varieties that have strong growth potential, strong disease resistance, high brain content, and pure aroma. Generally, Asia 39 and Shanyou 1 are selected.
2. Breeding time. It usually takes place during the bud stage of the growth of peony. The south is around June and the north is around July.
3. Site preparation. Select a land with high topography, good drainage, deep soil, loose and fertile land, and use sandy loam for better cultivation. In combination with site preparation, basal fertilizer is applied, and 3,000 to 5,000 kg of fertilizer per 667 square meters of soil and 50 kg of NPK fertilizer are used.
4. Breeding methods. 1 cutting propagation. The head of the mint was cut into 30 cm long segments and planted on the entire surface of the lotus root at 30 cm5 cm spacing. 2 rhizome breeding. After harvesting the scorpion mint, the underground rhizome was stalked and planted at 30cm5cm by row and plant spacing.
5. Field management. 1 Watering. After planting mints, soil moisture should be maintained, and watering should be done regularly to facilitate the emergence of peppermint roots. 2 weed control. Each 667 square meters before the emergence of mint with herbicide 100g of water 60kg, evenly sprayed on the peppermint field, can effectively control a variety of weeds. After mint seedlings, weeds can be manually removed. 3 top dressing. Every 667 square meters with mint production agent 100g, dubbed 300 times the solution evenly sprayed. Spray once every 10 days and spray 3 times. The peppermint seedlings were topdressed once at a height of 10cm. Every 667m2 topdressing urea 10kg, potassium dihydrogen phosphate 5kg. 4 pest control. The main diseases of peppermint are spot blotch, rust, etc., which can be controlled by routine methods at the early stage of disease.
6. Harvest. Peppermint grows until late October and can be harvested. Cut off the stems and leaves first, then shave the underground stems can be expanded.
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