How to grow licorice seedlings? Master these key seedling cultivation techniques

Choose sandy soil and loam with a low groundwater table and deep soil layer, but it must be irrigated land. When the ground surface temperature reaches 15°C, apply 3000 kg of farmyard manure per mu, plus 40 kg of American diammonium or nitrophosphate, then deep plow 40-50 cm. Deep plowing is essential (otherwise the seedlings grown will have short roots and many branches, mostly failing to meet the specified quality standards). Make a flat seedbed and water once, with the amount of water bringing the soil to the black moisture state (that is, when you grab a handful and throw it down, it does not crumble but holds together like a cake). After three to five days, shallow plow once more, then you can open furrows and sow. Follow the drilling method for seedling cultivation, with a row spacing of 20-25 cm, using ordinary grain drills to open furrows for seedlings (the method is the same as for sowing grain), with 5-6 kg of seed per mu. With suitable temperature and humidity, seedlings will emerge after 5 days. During the seedling period, loosen the soil and pull weeds frequently. Generally, 80000-120000 seedlings emerge, enough to transplant 6-10 mu. In seedling fields, be sure never to use nitrogen fertilizer or urea, as they burn the seedlings. Apart from watering before sowing, the growing period generally requires no watering, and drainage measures should be well managed. The time is from May to July, with May being the best.