1. Soil Preparation and Fertilization: Select sandy loam or loamy fields with loose soil, good aeration, and moderate fertility. Apply fertilizer at the end of May or early June. Use 10-15 kg of urea or 20-25 kg of ammonium bicarbonate per mu, along with 5-10 kg of potassium chloride. This ensures the plants receive adequate nutrients for healthy growth.
2. Seed Treatment: Soak seeds 1-2 days before sowing to improve germination. To prevent diseases like black spot and stem blight, soak the seeds in warm water (50-55°C) for 15 minutes, then cool them and air dry before planting. Plant approximately 0.5 kg of seeds per mu to ensure proper spacing and density.
3. Seedling Thinning and Transplanting: Once the seedlings have developed 2-3 pairs of true leaves, transplant them into the field. Space them about 15-20 cm apart, and thin out the dense areas to leave 8,000 to 10,000 strong seedlings per mu. This helps in better light penetration and nutrient distribution.
4. Timely Topping: After the initial flowering period, within 10-20 days, remove the main stem tip and the top of each branch by about 1 cm. This practice promotes lateral branching and increases yield potential.
5. Disease Prevention and Control: After the black sesame sprouts and during rapid stalk growth, apply a 50% puerarin solution diluted 800-1000 times. Spray once every 5-7 days for 2-3 consecutive applications. This helps control black spot, leaf blight, and stem blight effectively.
6. Timely Harvesting: Sesame maturity is uneven, so timing is crucial. Harvesting too early may result in underdeveloped upper seeds, while harvesting too late can cause lower seeds to fall off. The best time is during the last half of the flowering period or about 5 days after topping. Allow the harvested plants to dry for a few days before threshing to ensure full seed maturity and reduce losses.
Single-use sterile latex gloves,Sterile gloves,Cleanroom Gloves,Isolator gloves
AUSTAR Goup , https://www.hansencleanroom.com