High-quality and high-yield cultivation techniques of summer sesame

With the adjustment of planting structure, the planting area of summer sesame in our province is expanding continuously. In recent years, through practice, we have summed up a set of high-quality and high-yield cultivation techniques of summer sesame, which are introduced to you in order to improve the yield and quality of summer sesame in our province.

The main results are as follows: 1. crop rotation and crop rotation is the premise of realizing high quality and high yield of summer sesame seeds.

Second, the sesame varieties such as Yuzhi 8, Yuzhi 11 and Yuzhi 9 with high quality and high yield and strong stress resistance should be selected for the production of summer sesame.

3. The suitable sowing date for early sowing of summer sesame in our province is from June 5 to 15, during which the earlier the better. Artificial soil moisture was made 3-5 days before sowing with poor soil moisture to ensure that the whole seedling was sown. When sowing, the precision seeder is used for precision sowing, and the seed consumption per mu is 400 to 500 grams.

4. The seedlings under management at seedling stage began to grow when there were 1 pair of true leaves, and the seedlings were fixed when there were 3 to 4 pairs of true leaves, generally leaving 10 to 12000 seedlings per mu. It is suitable to keep 8000 ~ 10 000 seedlings per mu in the plots with early sowing and high fertility, and 12000 ~ 13000 seedlings per mu in the plots with low fertility and late sowing. The land sown with iron stubble should be ploughed and killed as soon as possible, and this work should be done sooner rather than later.

5. Fertilizer and water management 5 kg urea per mu in seedling bed stage, 8 kg urea per mu in early flowering stage, 0.3% potassium dihydrogen phosphate, 1% urea and boron fertilizer (200 grams per mu) twice in the middle and later stages. During the whole growth period of summer sesame, there is no drought and no watering. When there is stagnant water in the field in rainy days, it should be drained in time to prevent waterlogging.

6. top one week after flowering or 30 days before harvest. Topping can promote the fullness of seeds and reduce the nutrient consumption caused by empty tips.

7. After chemical weeding and sowing, 50% Acetochlor was sprayed on the surface of 40 kilograms of water 2-3 days before the seedling. In the 2-4-leaf stage of post-seedling weeds, the fields dominated by Monocotyledon weeds were sprayed on stems and leaves with 60 ml of water and 40 kg of water per mu with 15% precision. The plots dominated by dicotyledonous weeds were sprayed on stems and leaves with 25% Huwei 60 ml / mu of water 40 kg / mu. Monocotyledon and dicotyledonous mixed plots can be sprayed with the above two agents.

Eighth, the right time to harvest sesame capsule maturity is not consistent, generally with the basal leaves falling off, the capsule from green to yellow, the lower part of the 3 capsules dehiscent is the suitable harvest time. After harvest, it is bundled into small bundles, centrally stacked for 1-2 days and then dried on a shelf to dry. After drying, bundles are clapped, re-exposed, and then hit again.