Sesame sowing method
There are three kinds of sesame seeds: sowing, sowing, sowing and drilling. The amount of seeds used per mu is 400 grams, 350 grams of drilling and 250 grams of sowing. Fields with high soil fertility, few pests and diseases and high water content can appropriately reduce sowing.
1, sowing: sowing is a traditional sowing method in Jianghuai area, which is suitable for sowing in wet soil. When sowing, the seeds are spread evenly, covered with shallow soil and emerge quickly, but it is not conducive to field management.
2. Drill sowing: Drill sowing can control row spacing and plant spacing, and reasonable close planting is convenient for field management such as thinning and intertillage, which is suitable for mechanized operation.
3. Sowing: Sow 5-7 seeds per hole. No matter which sowing method, shallow sowing and even sowing, the depth is 2 ~ 3 cm.
Sesame planting techniques
1, full furrow sowing: the furrow width is 33cm, the furrow height is 20cm, the furrow width is 1 ~ 1.2m, and the furrow width is suitable and easy to manage. Dig shallow trenches at the boundary with a spacing of 33 cm (also the row spacing). When sowing, sesame seeds can be mixed with a small amount of dry fine soil, because the seeds are small and the density is difficult to control.
2. Chemical weeding: Three days after sowing, 60 ml of 60% Hennessy EC is used per mu, diluted with 50 kg of water and sprayed evenly on the border, which can reduce the growth of weeds.
3. Timely thinning: after ten days, after it grows 2-3 leaves, it is thinned again in 5-6 days, so that the plant spacing is between 22-24 cm, and 8000- 10000 plants are planted per mu. Proper plant spacing is beneficial to its branching.
4. Scientific fertilization: First, apply sufficient base fertilizer, and apply farmyard manure 1500 kg per mu. After growing 3 ~ 4 true leaves, smear 1 ~ 2 times of human feces. The flowering and fruiting period is the most vigorous period of sesame growth and the peak period of fertilizer demand. Apply ammonium sulfate 10 ~ 15 kg per mu, and spray the leaves with the mixed solution of 0.4% potassium dihydrogen phosphate and 0.2% borax for 5 ~ 6 days.
5. Topping and harvesting: After the full fruit period, when the leaves at the top of the main stem are clustered and almost stop growing, the terminal buds are removed in the sunny morning. When the sesame fruit is yellow and the grain is black, it can be harvested.