How to grow black sesame with high yield?

How can black sesame seeds be planted with high yield? There are many varieties of black sesame. Zhongzhi 9 is the first variety selected by Oil Crops Research Institute of Chinese Academy of Agricultural Sciences. This variety belongs to branching type, and its yield can reach 58.33 kg per 667 m2 (mu). The summer sowing period is 95 days. Seed coat black, 1000-grain weight 2.63 g. The oil content is 47.3% and the protein content is more than 21%. This variety has strong resistance to stem blight and is worth popularizing. At present, sesame is mainly planted by "double-stem cultivation method". The method comprises the following steps of: mainly removing the tip when the third pair of true leaves of sesame seedlings are half unfolded, enabling axillary buds of the first (or second) pair of true leaves to germinate and grow, and forming double stems. To adopt this method, the following points should be mastered: 1. Before sowing, 50% carbendazim wettable powder or 40% carbendazim colloidal suspension can be used, and 0.5 kg of water can be added to mix into paste and 0.5 kg of seeds. Sesame bogey crop, advocate 4 years 2 make system. They always grab good crops and sow early. 2, the appropriate time early sowing master density summer sesame sowing date is not later than June 15, generally the earlier the better. The suitable planting density is 28000--10000 plants per 667 meters. 3. Strictly control the topping time and method. Summer sesame seeds retain 2 pairs of true leaves and 2--3 cm stem nodes above the leaves. For the same field, the true leaf standard is kept consistent, and the topping is completed at one time. 4. Pay attention to supplement fertilizer after topping sesame seeds. In order to prevent defertilization of new branches, appropriate amount of quick-acting fertilizer can be applied; when the second and third pairs of true leaves grow out of the new branches, 100 times of liquid mepiquat or paclobutrazol should be sprayed to prevent late lodging and increase the number of effective capsules. 5, prevent stains early in the morning to prevent grass famine planting when the first good furrow and ditch, generally 2--2.5 meters wide, furrow depth 0.3 meters, ditch depth 0.4--0.5 meters. Furrows and ridges are set according to the terrain and soil quality, and waist furrows should be prepared in average areas. The seedlings grow 2~3 pairs of true leaves, the row spacing is 36 cm ×12--15 cm, and the weeding is carried out once. When the seedling height is 33 cm, the soil is cultivated in combination with topdressing. 6. Scientific fertilization to prevent diseases and insect pests Due to the short growth time of summer sesame seeds, it is necessary to apply more fertilizer and concentrate, and it is appropriate to apply base fertilizer. Every 667 meters, about 15 kilograms of ammonium bicarbonate, 30- 40 kilograms of phosphorus fertilizer and 6- 8 kilograms of potassium fertilizer are applied. In the growth period of thin seedlings grow weak field blocks, can be every 667 meters 2 dressing urea 3--5 kg. At jointing stage, 50% iprohydantoin 1000 times solution can be sprayed twice on leaves to prevent angle blight and leaf blight. Such as aphid occurrence available 2000--3000 times dimethoate emulsifiable mist. Click for more sesame cultivation technology Click for more grain crop cultivation technology