Seedling raising technique of Schisandra chinensis by direct seeding in the open field

A sunny plot with loose soil, flat terrain, moist soil and no stagnant water was selected to make a low bed with a width of 1.2m, a length of 10m and a flat surface. The strip sowing method was used for sowing. Before freezing in autumn, a shallow trench of 2-3cm was opened on the seedling bed according to the row spacing of 15cm. 100g seeds were sown in each bed, covered with soil thick 3---4cm, watered thoroughly, and slightly suppressed the thick leaves of 10cm or a layer of rice straw to maintain humidity and keep warm. When the seedlings were unearthed, they were removed. In order to prevent blight and other soil-borne diseases, after sowing and covering the soil, combined with watering, 800 Mel 1000 times 50% Dysenamine was sprayed. Autumn sowing usually takes place in late October. For example, if sowing in autumn is not timely, it can also be sowed after thawing in spring, but the temperature of stratification treatment should be low to ensure that the seeds are just cracked when sowing in spring, and the soil moisture should be maintained after sowing. The evenness and rate of seedling emergence were slightly lower than those of autumn sowing. Spring sowing usually takes place in the first ten days of May. In the second year after autumn sowing, seedlings began to emerge from the middle of May to the end of May (spring sowing can emerge 4 weeks after sowing 3Mel). By the middle of June, more than 50% of the seedlings were unearthed and a shade shed was set up to prevent high temperature and strong light, and the light transmittance was 50%. In the middle of August, when the seedling 5-6cm is high, the shade canopy should be removed according to the plant distance 7-10cm and time seedling. The seedbed should always be kept moist and weeds should be removed at any time.