Summary of High-yielding planting techniques of Sesame in Summer 2018

Sesame is one of the most important oil crops in China, and it has a very wide planting area in China. Now it is the summer of 2018, and it is a sensitive period for sesame planting management. What are the high-yield planting techniques of sesame in summer?

1. Choose a good seed. At present, the main white sesame varieties are Toshiba 8 and Toshiba 10. The output is about 80 kg per 667 square meters, and the high one can reach 100 kg. Local black sesame varieties can also be selected for cultivation.

two。 Fine soil preparation and adequate application of basic fertilizer. Sesame is a kind of temperature-loving crop, which should be cultivated in sandy soil with loose soil and good drainage, and should be rotated with soybean, corn, peanut and so on. Before sowing, the soil was carefully prepared, and 20 piculs of miscellaneous fertilizer was applied to every 667 square meters, and another 50 kilograms of lime was applied to the acidic soil. It is appropriate to sow seeds on a sunny day, mix the seeds in fine mud or charred mud ash and sow them well, with a seed consumption of about 300 grams per 667 square meters. Generally use strip sowing, sowing with solid feet, no longer cover the soil.

3. Strengthen field management. When the seedlings have 1 pair of true leaves, and when the seedlings have 3 or 4 pairs of true leaves, pay attention to removing the small and leaving the big, the weak and the strong. Branched sesame varieties generally retain about 10, 000 seedlings per 667m2, and single-culm varieties retain about 15000 seedlings per 667m2.

After setting the seedlings, ploughing and weeding should be done for 2 or 3 times in time, and the ditches should be cleared to cultivate the soil at the same time. In the budding stage of sesame, 10 kg of urea is generally applied with water every 667 square meters; in full bloom, 0.3% potassium dihydrogen phosphate solution is sprayed on the leaves.

4. Pest control. The main diseases harmful to sesame are blight, anthracnose and powdery mildew, which can be controlled by spraying with water, such as carbendazim, methyl thiophanate, mancozeb, etc., and pests are mainly ground tiger, aphid, night moth and so on. Chlorpyrifos, imidacloprid and other pesticides can be sprayed with water to control.

5. Harvest. Harvest begins when the sesame capsule changes from turquoise to yellow. When harvesting, cut the plant 5 cm near the ground, and then tie it into a handle. every 3 brackets will be erected and exposed to the sun. When most of the capsules are dehiscent, threshing is carried out and the sun is exposed after threshing. Generally, threshing needs to be carried out 3 times.