questions: asking about remedy for nitrogen deficiency in ridge gourd and fertilizer dose in cowpea and lady's finger 
 answers: suggested to spray npk @ 10g/1litre water,2 sprays at an interval of 15 days.
fertilizer dose for cowpea- urea-10kg/bigha and ssp-12kg/bigha and for lady's finger- urea-15kg,ssp-22kg,mop-8kg/bigha