questions: telling that he wants to cultivate ridge gourd in a land of 2 bigha and for the same asking the planting distance and fertilizer requirement. 
 answers: planting distance suggested is 1 metre x 1 metre and 5, 25,7 and 200 kilo grams of urea, super, potash and farm yard manure respectively has been suggested as fertilizer requirement per bigha for ridge gourd.