questions: asking for fertilizer requirement of mustard in one bigha. 
 answers: advised to apply 18 kg urea 33 kg super 9 kg potash and and 1- 1.5 kg borax in one bigha ( for the irrigated land ) and apply 12 kg urea 30 kg super 3 kg potash and and 1- 1.5 kg borax in one bigha ( for the unirrigated land )