Question: asking about ash gourd cultivation 

Answer: preparation of field
plough the field to fine tilth.  dig pits of 30 cm x 30 cm x 30 cm size at 2.5 x 2 m spacing and form basins.
seed treatment:the seeds are treated with trichoderma viride 4 g or pseudomonas fluorescens 10 g / kg of seeds before sowing.
preparation of field: plough the field to fine tilth.  dig pits of 30 cm x 30 cm x 30 cm size at 2.5 x 2 m spacing and form basins.
sowing: sow the seeds (5 seeds / pit) and thin the seedlings to two/ pit after 15 days.
irrigation: irrigate the basin before dibbling the seeds and thereafter once in a week