How snake gourd seeds are sown in Shallow Pit or Flatbed Method?

Shallow pits of 60 × 60 × 45 cm size are dug, and they left open for 3 weeks before sowing seeds. The pits are filled with a mixture of soil, compost (4-5 kg/pit) and recommended dose of NPK. Carbofuran @ 1.5 g/pit should also be thoroughly mixed in pit soil before sowing seeds. After filling the pits, 3-4 seeds per pit are sown at 2-3 cm depth. A spacing of 1.5-2.5 m row-to-row and 60-120 cm plant-to-plant is advocated for the planting of snake gourd.