Windproof cultivation technology and harvesting processing
Alias Guan Fang Feng, Dong Fang Feng, Fang Feng, etc., are perennial herbs of the Umbelliferae family, with roots and whole herbs, which have the functions of relieving perspiration, expelling wind and dehumidifying. Wild on hillsides, forest sides, grasslands, sandy loam, and gravelly sunny hillsides. Cold-resistant, drought-resistant, avoid excessive humidity and rain, suitable for planting in cool, dry places in summer. Mainly produced in Heilongjiang, Jilin, Liaoning, Hebei, Shandong and Inner Mongolia.
Seeds are used for breeding. The sowing period is divided into spring sowing and autumn sowing. 4 月上中旬，秋播地冻前播种，次春出苗，以秋播出苗早而整齐，春播需将种子放在 35 ℃的温水中浸泡 24 小时，使其充分吸水以利发芽，浸泡后捞出晾干播种；秋播可用干种子，在整好畦内按行距 25 厘米开沟条播，沟深 2 ～ 3 厘米，将种子均匀地播入沟内，每 666.7 米 2 播种量 2 ～ 3 千克，盖土压实，如遇干旱，应及时灌水，出苗期保持田间湿润，以利出苗。 Spring sowing in mid-April, sowing before autumn sowing, emergence in the next spring, early and neat seeding in autumn sowing, sowing seeds in warm water at 35 ℃ for 24 hours to fully absorb water for germination Remove the seeds for drying and sowing; in the autumn sowing, dry seeds can be used, and the seeds should be ditched with a row spacing of 25 cm in the well . The depth of the ditch is 2 to 3 cm. 3 kg, cover soil compaction, in case of drought, timely irrigation, keep the field moist at the emergence stage to facilitate emergence.
1 个月后，苗高 5 ～ 7 厘米时，按株距 3 ～ 5 厘米间苗，待苗高 10 ～ 13 厘米时按 7 ～ 10 厘米株距定苗， 6 月除草 3 ～ 4 次， 7 月以后封垄即不能进入地内除草。 One month after emergence , when the height of the seedlings is 5 to 7 cm , the seedlings are separated by 3 to 5 cm. When the height of the seedlings is 10 to 13 cm, the seedlings are determined to be 7 to 10 cm. Weeding is performed 3 to 4 times in June and sealed after 7 months. The ridge cannot enter the field for weeding. Soil should be cultivated before the rainy season, soil should be cultivated again before the ground is frozen, and weeding is also performed. 666.7 米 2 施人粪尿 1000 千克加过磷酸钙 15 ～ 25 千克，沟施于行间，或用堆肥每 666.7 米 2 500 千克加磷肥，也可单用硫酸铵 10 ～ 15 千克，加上磷肥效果更好。 For example, when basal fertilizer is applied more, the quality is good, and the plant grows vigorously, the fertilizer can not be topdressed in the first year. In the second year of early spring, 1000 kg of manure and urine plus 15 to 25 kg of superphosphate are applied every 666.7 m2. At the same time, you can add 2 500 kg of phosphate fertilizer every 666.7 meters of compost, or 10 to 15 kg of ammonium sulfate alone , and the effect of adding phosphate fertilizer is better.
Although windbreaks like drought, suitable water is needed from sowing to seedling stage. Excessive drought not only affects emergence but also hinders growth. 10 厘米以上时，根深入地下，抗旱力增强，可少灌水。 When the seedlings are more than 10 centimeters high, the roots go deep into the ground, and the drought resistance is enhanced, so less irrigation is required. The ground is often wet, and it is easy to rot the roots. Pay special attention to drainage during the rainy season, and do not allow water to accumulate in the ground. 6 ～ 7 月抽薹开花。 In the year of sowing, only leaf clumps were formed, and in the second year of June to July , the leaves were shriveled and flowered. 3 ～ 4 年生、生长健壮、开花早、结实饱满的植株留种，非留种的植株，发现抽薹的及时摘除，避免因开花而消耗养分，影响根部发育，防风开花后根部木质化、中空，不能作药用。 The planting place should be selected from 3 to 4 years old, with robust growth, early flowering, and strong and full plants. Non-retained plants should be removed in time to avoid the loss of nutrients due to flowering and affect root development. Lignified, hollow, can not be used for medicinal purposes.
Harvesting and processing
33 厘米、粗度 1 厘米时采挖，如地瘦，田问管理差，就需要 3 ～ 4 年收获，应根据根部实际生长情况而定。 After windbreak planting, it is harvested before flowering in the second year or in winter. Generally, the root is 33 cm long and the thickness is 1 cm. If the ground is thin and the field management is poor, it will take 3 to 4 years to harvest. It depends. Early harvest, low yield, late harvest, easy to lignify the roots. 250 克重的小把，再晒到全干即可入药。 After harvesting, remove the residual stems, fine tips, beard hairs and soil, and dry them to 90% dryness. According to the thickness of the roots, bundle them into small 250g weights.