Crop management
First, sow seed at right spacing and density per hole and make sure seed has high germination and place 5-8 seeds per hole and plant at 20-40 cm between holes and 70cm between rows. Fill gaps in 3 weeks after sowing and observe field.
Similarly, thin planting hills to 2 plants per hill and keep the thinned plants. Select vigorous thinned plants for transplanting and finally transplant 2 plants per hill missing plants.