1.Selection of good varieties: Good varieties are the internal causes of high yield. In recent years, there have been excellent performances such as Ezhi No.1, Zhizhi No.2, Yuzhi No.4, Zhongzhi No.7, Zhongzhi No.8, Zhongzhi No.10 and Black Sesame Zhongzhi No.9. They have good comprehensive properties, yields of more than 100 kg per mu, and are highly adaptable and can be planted everywhere. 2, rotation for change: sesame continuous cropping, will make the disease worse. According to the survey, the sesame seed is continuously cropped for 1 year, the incidence rate of the field is over 50%, and the continuous cropping is as high as 80% in 2 years. Therefore, it is best to carry out crop rotation for 3 to 4 years with crops such as corn, sweet potato, soybean, sorghum and cotton.
3, the reform of the ditch: sesame is not resistant to waterlogging, it is easily infected by the disease after the stain, and the root growth and development is bad, especially in the later stage, it is easy to be blown down by the wind. Therefore, it should be leveled as a deep groove narrow box, so that the field can both clarify the water and filter the dark spots, and the sesame can grow normally. The general width is 1.5 to 2 meters, the width of the compartment is about 30 centimeters, and the depth of the trench should be deeper than the tillage layer.
4, double-layer seeding: Under the premise of early sowing, the implementation of "grazing double-layer seeding", that is, after the land is ploughed, immediately seeded a layer of seeds, then broadcast a layer of seeds, and finally carry out horizontal and straight Cross the corners and smash the soil. The advantage of this kind of sowing is that when the dry land is dry, the bottom seed can absorb the water and be unearthed on time; when the rainy day is full, the upper layer of the seed can be completely emerged. It can do double insurance for drought and rain, and ensure that all seedlings are planted once.
Disease control of sesame: mainly: blight, anthracnose and powdery mildew. When it occurs, it can be controlled by carbendazim, thiophanate, mancozeb, and the pests are mainly tigers, mites, noctuids, etc. Chlorpyrifos and imidacloprid pesticide control.
Expanding information: sesame planting time：The suitable sowing date for summer sesame seeds is from late May to early June. The suitable sowing date for autumn sesame seeds is early and mid-July, and in the case of better heat, it can be late in late July.