Detailed Explanation of Key Technical Points for Spring Planting of Pinellia ternata (Dry Pinellia)

In recent years, there has been a large supply-demand gap in the dry Pinellia market, and prices have been rising steadily, so production can be developed according to local conditions.

Planting on slopes or intercropping with other crops: Pinellia ternata is a shade-tolerant crop, so gentle slopes can be chosen for planting, or it can be intercropped in young orchards and fields of tall crops such as corn and @#@245@#@.

Pre-sowing sprouting promotion, mulching during the seedling stage; generally sown from February to April. Before sowing, the seed tubers are sprouted on indoor hotbeds, with the bed temperature maintained at 20°C, and sprouts can emerge after 15 days. Place the seed tubers in a plastic greenhouse with a temperature of 20-25°C for 15 days, and sow after the bud sheaths turn white. After sowing, cover with plastic film and remove it after the seedlings emerge uniformly.

Timely drainage and irrigation, and timely fertilization. Before planting, water the planting site thoroughly once to help seedlings emerge. During the seedling growth period, keep the soil moist, irrigate promptly during drought, and drain promptly during the rainy season to avoid waterlogging in the field causing seedling death. Apply sufficient base fertilizer, mainly farmyard manure. Apply topdressing twice during the growth period. From late May to early June, when buds grow on the inner side of the lower leaf petioles, apply 2000 kg of decomposed human and livestock manure and 25 kg of decomposed cake fertilizer per mu between the rows. In August, after the plants wither and fall, when the daughter Pinellia tubers expose new buds and the mother Pinellia tubers shed their shells and grow new roots again, apply 20 kg of decomposed cake fertilizer, 15 kg of superphosphate, and 10 kg of urea per mu at the plant roots. Combine fertilization with earthing up and banking soil around the roots.

Remove flower buds. About two months after sowing, the plants will gradually bolt and bloom. Remove the flower buds in time so that nutrients are concentrated and transported to the underground tubers, accelerating tuber growth and helping increase yield.

Delay plant withering and falling. Dry Pinellia will wither and fall when exposed to high temperatures and strong light, and growth will stop. Proper shading should be used to reduce light intensity, and water should be sprayed to lower the field temperature. Spraying an appropriate amount of 0.01% sodium sulfite solution inhibits plant respiration and can shorten the withering period or reduce the number of times the plants wither and fall.