What problems should be paid attention to in planting black sesame?

What problems should be paid attention to in planting black sesame? Please give instructions to plant black sesame seeds to pay attention to the following problems: 1. Soil preparation and fertilization: choose sandy loam or loam fields with loose soil, good air permeability and medium-high fertility to plant, avoid continuous cropping. At the end of May and the beginning of June, 15 kg of urea vegetables or 25 kg of ammonium bicarbonate and 5-10 kg of potassium chloride were applied per mu. 2. Seed treatment: sun-drying seeds for 1-2 days before sowing. In order to control sesame black spot and stem spot blight, the seeds were soaked in warm water for about 15 minutes with 50 ℃ 55 Mel. After cooling, the seeds were removed and sowed dry. The sowing rate is 0.5 kg per mu. 3. Inter-seedling fixed seedling: the first pair of true leaves of seedlings spread out time seedlings. When 3 pairs of true leaves were produced, the seedlings were fixed according to the row spacing of 15 × 20 cm, and the seedlings were dense and thinned, leaving enough strong seedlings of 8000Mel 10000 seedlings per mu. 4. Topping at the right time: the length of the main stem and the tip of each branch is about 1 cm at 10 min 20 days after the early flowering. 5. Prevention and control of diseases: after the budding of black sesame, when the stem grows rapidly, spray with 50% hydantoin 800 murine 1000 times liquid, spray every 5 mi every 7 days, continuously control 2 mi for 3 times, can effectively control black spot, leaf blight and stem spot blight. 6. Timely harvest: the maturity of sesame is very inconsistent. If the harvest is too early, the upper seed can not mature; if the harvest is too late, the lower seed is easy to fall off, resulting in loss. It should be harvested from half a month to 20 days after the final flowering, or about 5 days after topping. After harvest, store it for a period of time before threshing, so that the seeds are fully ripe. Click to get more sesame planting techniques click to get more food crop planting techniques