সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
Which one of the following nitrogenous fertilizers is not very effective in acidic soils?
Which one of the following nitrogenous fertilizers is not very effective in acidic soils?
- ক. nitrolin
- খ. calcium nitrate
- গ. ammonium sulphate
- ঘ. urea
সঠিক উত্তরঃ urea
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